ICOM orporated IC-910H Amature Scanning Transceiver User Manual IC 910H 2

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Document ID	130522
Application ID	MmLhm1UBJ5d5q7z+XhEH0w==
Document Description	Manual
Short Term Confidential	No
Permanent Confidential	No
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Document Type	User Manual
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Filesize	208.37kB (2604579 bits)
Date Submitted	2000-12-26 00:00:00
Date Available	2000-12-26 00:00:00
Creation Date	2000-11-22 14:02:48
Producing Software	Acrobat Distiller 4.05 for Macintosh
Document Lastmod	2000-11-22 14:19:42
Document Title	IC-910H_2.qxd
Document Author:	Icom Inc.

INSTRUCTION MANUAL
VHF/UHF
ALL MODE TRANSCEIVER
i910H
IMPORTANT
READ THIS INSTRUCTION MANUAL
CAREFULLY before attempting to operate the
transceiver.
SAVE THIS INSTRUCTION MANUAL. This
manual contains important safety and operating instructions for the IC-910H.
EXPLICIT DEFINITIONS
WORD
DEFINITION
R WARNING
Personal injury, fire hazard or electric
shock may occur.
CAUTION
NOTE
Equipment damage may occur.
If disregarded, inconvenience only.
No risk of personal injury, fire or
electric shock.
PRECAUTIONS
R WARNING HIGH VOLTAGE! NEVER attach
an antenna or internal antenna connector during transmission. This may result in an electrical shock or burn.
R NEVER apply AC to the [DC13.8V] jack on the
transceiver rear panel. This could cause a fire or ruin
the transceiver.
R NEVER apply more than 16 V DC, such as a 24 V
battery, to the [DC13.8V] jack on the transceiver rear
panel. This could cause a fire or ruin the transceiver.
R NEVER let metal, wire or other objects touch any
internal part or connectors on the rear panel of the
transceiver. This may result in an electric shock.
R NEVER expose the transceiver to rain, snow or
During mobile operation, DO NOT operate the transceiver without running the vehicle’s engine. When the
transceiver power is ON and your vehicle’s engine is
OFF, the vehicle’s battery will soon become exhausted.
Make sure the transceiver power is OFF before starting the vehicle. This will avoid possible damage to the
transceiver by ignition voltage spikes.
During maritime mobile operation, keep the transceiver
and microphone as far away as possible from the magnetic navigation compass to prevent erroneous indications.
any liquids.
BE CAREFUL! The heatsink will become hot when
operating the transceiver continuously for long periods.
AVOID using or placing the transceiver in areas with
temperatures below –10°C (+14°F) or above +60°C
(+140°F). Be aware that temperatures on a vehicle’s
dashboard can exceed 80°C (+176°F), resulting in permanent damage to the transceiver if left there for extended periods.
BE CAREFUL! If a linear amplifier is connected, set
the transceiver’s RF output power to less than the linear amplifier’s maximum input level, otherwise, the linear amplifier will be damaged.
AVOID placing the transceiver in excessively dusty environments or in direct sunlight.
Use Icom microphones only (supplied or optional).
Other manufacturer’s microphones have different pin
assignments, and connection to the IC-910H may
damage the transceiver.
AVOID placing the transceiver against walls or putting
anything on top of the transceiver. This will obstruct
heat dissipation.
Versions of the IC-910H which display the “CE”
symbol on the serial number seal, comply with the
European harmonised standard ETS300 684
(EMC product standard for Commercially Available
Amateur Radio Equipment).
Place unit in a secure place to avoid inadvertent use
by children.
1
TABLE OF CONTENTS
IMPORTANT ........................................ i
EXPLICIT DEFINITIONS ..................... i
PRECAUTIONS ................................... i
1 TABLE OF CONTENTS ................ 1
2 PANEL DESCRIPTION ........... 2 – 13
■ Front panel ..................................... 2
■ Function display ........................... 10
■ Rear panel .................................... 12
■ Indications during transmit ........... 32
■ FM mode operation ...................... 33
■ VOX operation .............................. 33
■ Repeater operation ....................... 34
■ SSB mode operation .................... 36
■ Speech compressor ..................... 36
■ Split frequency operation .............. 37
■ Full duplex operation .................... 37
■ Connections for CW ..................... 38
■ CW mode operation ..................... 38
6 MEMORY OPERATION ........ 40 – 44
3 INSTALLATION AND
CONNECTIONS ................... 14 – 17
■ Unpacking .................................... 14
■ Grounding ..................................... 14
■ Selecting a location ...................... 14
■ Antenna connection ..................... 14
■ Required connections ................... 15
■ Advanced connections ................. 16
■ Power supply connections ............ 17
■ Memory channels ......................... 40
■ Operation on a memory channel .. 40
■ Programming in VFO mode .......... 41
■ Programming in memory mode .... 41
■ Blank channels ............................. 42
■ Frequency transferring ................. 42
■ Memory clearing ........................... 43
■ Call channels ................................ 43
■ Memo pads ................................... 44
4 BASIC OPERATION ............. 18 – 25
7 SCANS ................................. 45 – 47
■ Initial settings ................................ 18
■ When first applying power
(CPU resetting) ............................. 18
■ MAIN and SUB bands .................. 19
■ Operating band selection ............. 20
■ VFO description ............................ 21
■ Frequency setting ......................... 22
■ SUB band OFF ............................. 24
■ SUB tuning dial ............................. 24
■ Dial lock function .......................... 25
■ Scan types .................................... 45
■ Preparation ................................... 45
■ Programmed scan operation ........ 46
■ Memory scan operation ................ 46
■ Memory select scan ..................... 47
■ Tone scan ..................................... 47
5 RECEIVE AND TRANSMIT .. 26 – 39
■ Functions for receive .................... 26
■ RIT function .................................. 27
■ IF shift function ............................. 27
■ AGC time constant ....................... 28
■ AFC function ................................. 28
■ FM center indicator ....................... 28
■ Attenuator ..................................... 29
■ Simple band scope ....................... 29
■ Noise blanker ............................... 30
■ Tone squelch operation ................ 30
■ Optional DSP functions ................ 31
■ Functions for transmit ................... 32
■ Transmit via microphone ............... 32
8 SATELLITE OPERATION ..... 48 – 51
■ Satellite communications outline .. 48
■ Satellite notes ............................... 48
■ Entering into the satellite mode .... 48
■ Setting the satellite VFO ............... 49
■ Tracking selection ......................... 49
■ Preparation ................................... 50
■ Satellite operation ......................... 51
■ Satellite memory .......................... 51
10 SET MODE ........................... 55 – 69
■ Set mode description ................... 55
■ General set mode ......................... 56
■ FM set mode ................................ 60
■ SSB/CW set mode ....................... 62
■ Scan set mode ............................. 64
■ Memo pad set mode ..................... 64
■ Compressor set mode .................. 64
■ VOX set mode .............................. 65
■ Attenuator set mode ..................... 65
■ Transmit set mode ........................ 66
■ NR set mode ................................ 67
■ SWP set mode ............................. 67
■ RIT/SHIFT set mode .................... 68
■ Speech set mode ......................... 69
11 OPTION INSTALLATIONS ... 70 – 76
■ Internal view ................................. 70
■ Opening the transceiver’s case .... 71
■ UT-102 VOICE SYNTHESIZER
UNIT .............................................. 71
■ UT-106 DSP UNIT .......................... 72
■ UX-910 1200 MHz BAND UNIT ........ 73
■ CR-293 HIGH STABILITY CRYSTAL
UNIT .............................................. 74
■ FL-132/FL-133 CW NARROW
FILTER ........................................... 75
12 MAINTENANCE ................... 76 – 77
■ Troubleshooting ............................ 76
■ Fuse replacement ......................... 77
■ CPU resetting ............................... 77
13 CONTROL COMMAND ........ 78 – 79
■ Remote jack (CI-V) information .... 78
14 SPECIFICATIONS ....................... 80
15 OPTIONS ..................................... 81
9 DATA COMMUNICATION ..... 52 – 54
■ Functions for AFSK ...................... 52
■ Connections for AFSK .................. 52
■ Operating mode notes .................. 53
■ Operating frequency notes ........... 53
■ AFSK operation ............................ 53
■ Setting the ACC socket ................ 54
SUPPLIED ACCESSORIES
The transceiver comes with the following accessories.
Qty.
q DC power cable (OPC-657A) ............................ 1
w Hand microphone (HM-12) ................................ 1
e Spare fuses (FGB 30 A) .................................... 2
r Spare fuse (FGB 4 A) ........................................ 1
2
PANEL DESCRIPTION
■ Front panel
!0
!1 !2 !3
u i
q POWER SWITCH [POWER]
➥ Push momentarily to turn power ON.
➥ Push for 2 sec. to turn power OFF.
w TRANSMIT SWITCH [TRANSMIT]
Push to select transmitting or receiving.
e COMPRESSION SWITCH [COMP] (p. 36)
Push to switch the speech compressor function ON
and OFF.
• The speech compressor increases average RF output
power, improving signal strength and readability in SSB.
r VOX SWITCH [VOX] (p. 33)
Push to switch the VOX function ON and OFF.
• The VOX (Voice-Operated Transmission) function toggles between transmit and receive with your voice. This
function provides an opportunity to input log entries into
your computer, etc., while operating.
t HEADPHONE JACK [PHONES]
Accepts headphones.
• Output power: 5 mW with 8–16 Ω load.
• When headphones are connected, the internal speaker
or connected external speaker does not function.
• The MAIN and SUB band audio can be mixed or separated when using stereo headphones according to set
mode settings. (p. 57)
y MICROPHONE CONNECTOR [MIC]
Accepts the supplied or optional microphone.
• See p. 81 for appropriate microphones.
• See p. 15 for microphone connector information.
u MIC GAIN CONTROL [MIC GAIN]
Adjusts microphone input gain.
Recommended level for
an Icom microphone
MIC GAIN
Decreases
Increases
✔ How to set the microphone gain.
Set the [MIC] control so that the [MAIN]/[SUB] indicator (ALC
indicator) some times lights brighter during normal voice
transmission in SSB mode.
i RF POWER CONTROL [RF PWR]
Continuously varies the RF output power from minimum to maximum.
144 MHz band
5–100 W
430(440) MHz band 5–75 W
1200 MHz band
1–10 W (optional UX-910)
RF PWR
Decreases
Increases
PANEL DESCRIPTION
o MAIN BAND INDICATOR [MAIN]
➥ Lights green while the squelch is opened or a signal is received on the MAIN band; lights red while
transmitting on the MAIN band.
• While transmitting, the indicator also shows ALC condition. Brightness increases more than usual when
the ALC function is activated.
➥ Flashes when an off-frequency signal is received
and the FM center detector is activated. (p. 28)
!0 RF GAIN CONTROL/SQUELCH CONTROL
[RF/SQL] (outer control)
Adjusts the RF gain and squelch threshold level for
the MAIN band. The squelch removes noise output
from the speaker (closed condition) when no signal
is received.
• The squelch is particularly effective for FM. It is also
available for other modes.
• 12 to 13 o’clock position is recommended for any setting
of the [RF/SQL] control.
• The squelch threshold position for SSB/CW mode can
be set from 12 or 13 o’clock position in SSB/CW set
mode. (p. 62)
• The control can be set as ‘Auto’ (RF gain control in SSB
and CW; squelch control in FM) or squelch control (RF
gain is fixed at maximum) in set mode as follows. (p. 56)
MODE
AUTO
SET MODE SETTING
SQL
RF GAIN + SQL
SSB, CW
RF GAIN
SQL
RF GAIN + SQL
FM
SQL
SQL
SQL
• When setting as RF gain/squelch control
• When functioning as squelch control
(RF gain is fixed at maximum.)
Noise squelch
Noise squelch
threshold
S-meter squelch
threshold
S-meter
squelch
Squelch is
open.
Shallow
Deep
!1 AF CONTROL [AF] (inner control)
Varies the audio output level from the speaker for
the MAIN band.
AF
RF/SQL
Decreases
Increases
No audio output
Max. audio output
!2 SUB BAND INDICATOR [SUB]
Lights green while the squelch is opened or a signal
is received on the SUB band; lights red while transmitting in satellite operation.
!3 RF GAIN CONTROL/SQUELCH CONTROL
[RF/SQL] (outer control)
Adjusts the RF gain and squelch threshold level for
the SUB band. The squelch removes noise output
from the speaker (closed condition) when no signal
is received.
Noise squelch (FM mode)
Squelch is
open.
Recommended level
Maximum
RF gain
RF gain
adjustable
range (SSB,
CW modes)
S-meter
squelch
• When functioning as RF gain control
(Squelch is fixed open; SSB, CW only)
Maximum
RF gain
Adjustable
range
Minimum RF gain
2
PANEL DESCRIPTION
■ Front panel (continued)
!4
!5
!6
!7
!8
!4 AF CONTROL [AF] (inner control)
Varies the audio output level from the speaker for
the SUB band.
!5 SET•MENU SWITCH [SET•MENU] (p. 55)
➥ Push this switch then one of [FM],
[SSB/CW], [RIT], [SCAN], [NR], [TRANSMIT], [COMP], [VOX], [ATT], [SWP],
[MPW] or [SPCH] to enter the independent item set mode.
➥ Push for 1 sec. to enter the set mode for
commonly used item settings.
!9
@0
For 1 sec.
@3
!7 AUTO FREQUENCY CONTROL/NOISE
BLANKER•NOISE REDUCTION SWITCH
[AFC/NB•NR]
➥ During FM/FM narrow mode operation,
push to switch the AFC (Automatic Frequency Control) function ON and OFF.
(p. 28)
• Automatically tunes the operating frequency,
when an off-frequency signal is received, in
100 kHz steps. This function also follows the
signal even if the frequency is shifted.
!6 ATTENUATOR•PRE-AMP SWITCH [ATT•P.AMP]
➥ Push to switch the attenuator function
ON and OFF. (p. 29) Use this function to
protect from signal distortion from excessively strong signals.
➥ Push for 1 sec. to switch the connected
pre-amplifier ON and OFF, when an optional pre-amplifier unit, AG-25, AG-35
and/or AG-1200, is connected. (p. 16)
@2
DO NOT connect any equipment, such as an SWR
or power meter between the transceiver and preamplifier. In such case, the preamplifier may not activate properly.
For 1 sec.
• The attenuation level is independently adjustable for 144 MHz or 430(440) MHz band
in the ATT set mode. The optional 1200 MHz
band attenuation level is fixed and is approx.
20 dB. (p. 65)
@1
➥ During SSB or CW mode operation, push
to switch the noise blanker function ON
and OFF. (p. 30)
• Reduces pulse-type noise, such as ignition
noise from a vehicle.
For 1 sec.
➥ Push for 1 sec. to switch the noise reduction function ON and OFF when an optional DSP unit, UT-106, is installed.
(p. 31)
• Reduces unwanted noise and pulls out the
desired signal only for clear readability.
PANEL DESCRIPTION
!8 AUTO GAIN CONTROL•AUTO NOTCH FILTER
SWITCH [AGC•ANF]
➥ Push to switch the time constant of the
automatic gain control to SLOW and
FAST for the MAIN band.* (p. 28)
@2 BRAKE ADJUSTMENT SCREW
Adjust the tension of the tuning dial.
• Rotate clockwise to increase the tension; counterclockwise to decrease the tension.
• SLOW selection (“FAGC” disappears) during
SSB (USB or LSB) operation, FAST selection
(“FAGC” appears) during CW, data operation
and while tuning with fast tuning dial rotation
are recommended.
*The AGC time constant can be selected on the
MAIN band only. FAST selection is fixed on the
SUB band.
For 1 sec.
➥ Push for 1 sec. to switch the automatic
notch filter function ON and OFF when
the optional DSP unit, UT-106, is installed. (p. 31)
• Reduces interference signals such as beat,
RTTY or CW signals and the notch frequency
automatically follows the interfering signal.
!9 kHz/MHz•TUNING STEP SELECTION SWITCH
[kHz/MHz] (p. 22)
➥ Push to select tuning step for the tuning
dial or scanning from 1 kHz, 1 MHz step
and regular tuning step* in sequence
Z” appears above the 1 kHz or 1 MHz digit
• “Z
when 1 kHz or 1 MHz tuning step is selected,
respectively.
*The regular tuning step is selected for each
operating mode as follows.
Brake adjustment screw
@3 MEMORY CHANNEL UP/DOWN SWITCHES
Y UP]/[DOWN Z] (p. 40)
[Y
➥ Push [Y UP] to change the memory
channel up; push [DOWN Z] to change
or
the memory channel down.
• Memory channel changes continuously while
holding either switch.
• Memory channels can be selected both in
VFO and memory modes.
or
For 1 sec.
➥ Push for 1 sec. to enter the regular tuning step selection mode.
For 1 sec.
• The tuning step can be selected for each operating mode independently.
• SSB/CW mode: 1, 10, 50 and 100 Hz step;
FM mode: 0.1, 5, 6.25, 10, 12.5, 20, 25 and
100 kHz step can be selected by rotating the
tuning dial.
@0 SPEECH•LOCK SWITCH [SPCH•LOCK]
➥ Announces the receiving signal strength
and/or selected readout frequency when
the optional UT-102 is installed. (pgs. 69,
71)
➥ Push for 1 sec. to switch the tuning dial
lock function ON and OFF to prevent accidental setting changes. (p. 25)
For 1 sec.
@1 TUNING DIAL
Changes the displayed frequency, selects set mode
items, etc.
2
PANEL DESCRIPTION
■ Front panel (continued)
@8
@7
@6
@5
@4
@4 RIT CONTROL [RIT] (p. 27)
Shifts the receive frequency without changing the
transmit frequency for the MAIN band only while the
RIT function is activated.
• SSB/CW mode : ±1.0 kHz* in 10 Hz step
• FM mode
: ±5.0 kHz* in 50 Hz step
*For 1200 MHz band; ±2.0 kHz and ±10.0 kHz, respectively when the optional UX-910 is installed.
• By using the Sub dial function, the RIT control can be
used as the MAIN/SUB tuning dial or the SUB band IF
shift control. See page 24 for details.
For 1 sec.
• To change the normal and reverse satellite
operations, push [F-INP/ENT] for 1 sec.
@5 IF SHIFT CONTROL [SHIFT]
Shifts the center frequency of the receiver’s IF passband within 1.2 kHz range.
@7 RIT SWITCH [RIT] (p. 27)
➥ Push to switch the RIT control activity ON
and OFF.
• By using the Sub dial function, the IF shift control can be
used as the MAIN/SUB tuning dial or the SUB band IF
shift control. See page 24 for details.
• “RIT” indicator appears when the RIT function is in use.
The [RIT] and [SHIFT] controls are used for RIT and IF shift
controls for the MAIN band by default. However, the Sub dial
function assigns these controls as the MAIN/SUB tuning dial
or the SUB band IF shift control. (p. 24, 68)
RIT
SHIFT
Max. counterclockwise position
RIT
SHIFT
Center position
➥ Push for 1 sec. to switch the Sub dial
function ON and OFF.
For 1 sec.
✔ What is the Sub dial function?
@6 SATELLITE SWITCH [SATELLITE]
➥ Push to enter satellite mode (RX on
MAIN, TX on SUB band). Push again to
return to the condition before entering
into the satellite mode.
➥ Push to enter satellite mode using the
current operating frequencies when
For 1 sec.
pushing for 1 sec.
RIT
SHIFT
Max. clockwise
position
• “RIT” indicator flashes and the [RIT] and
[SHIFT] controllers acts as the controllers
specified in the RIT/SHIFT set mode. (p. 68)
@8 KEYPAD
Numeral and other function keys for tuning and activating functions.
See the table at right.
PANEL DESCRIPTION
Switch
Switch action when pushed
• Enters numeral “1” when entering an operating
frequency. (p. 23)
• Switches between VFO and memory mode.
(p. 40)
Switch action when pushed for 1 sec.
Enters numeral “2” when entering an operating Equalizes the condition of the VFO A and B.
frequency. (p. 23)
(p. 21)
• Enters numeral “3” when entering an operating Shows 10 Hz and 1 Hz digits of operating frefrequency. (p. 23)
quency on both the MAIN and SUB bands while
• Switches between VFO A and B during VFO pushing and holding. (p. 22)
mode operation. (p. 21)
Enters numeral “4” when entering an operating Stores the set conditions into a memory channel.
frequency. (p. 23)
(p. 41)
Enters numeral “5” when entering an operating Clears stored contents of memory channel to be
frequency. (p. 23)
a blank channel. (p. 43)
Enters numeral “6” when entering an operating Transfers the contents of a memory channel into
frequency. (p. 23)
either the VFO A or B. (p. 42)
Enters numeral “7” when entering an operating Opens squelch for monitoring the operating or
frequency. (p. 23)
transmit frequency, and the frequency indication
automatically changes to transmit frequency in the
case of duplex or split operation. (p. 34)
• Enters numeral “8” when entering an operating
frequency. (p. 23)
• Stores the displayed operating conditions into
MEMO PAD channel (p. 44)
• Enters numeral “9” when entering an operating
frequency. (p. 23)
• Re-calls the contents in the MEMO PAD channel.
(p. 44)
• Enters decimal point “.” for entering below the Starts and cancels tone scan when the repeater
“MHz“ digits when entering an operating fre- tone or tone squelch is activated in FM (narrow)
quency.
operation. (p. 47)
• Starts and cancels scanning function. (p. 46)
• Turns OFF the SUB band frequency indication
during satellite operation. In this case, only the
MAIN band frequency can be tuned by rotating
the tuning dial. (p. 49)
• Enters numeral “0” when entering an operating
frequency. (p. 23)
• Switches sweep function for the bandscope ON
and OFF. (p. 29)
• Turns OFF the MAIN band frequency indication
during satellite operation. In this case, only the
SUB band frequency can be tuned by rotating
the tuning dial. (p. 49)
Enables operating frequency entering from the Used to change memory channel during memory
keypad. See page 23 for details.
mode operation by rotating the tuning dial while
pushing and holding. (p. 40)
2
PANEL DESCRIPTION
■ Front panel (continued)
#5 #4 #3 #2 #1
@9 SPLIT•DUPLEX SWITCH [SPLIT•DUP]
➥ Push to turn the split function, with the
VFO A and B, ON and OFF. (p. 37)
• The split operation is not available for the
SUB band.
For 1 sec.
#0 SSB/CW•CW-NARROW SWITCH
[SSB/CW•CW-N]
➥ Push to switch the operating mode between SSB and CW. (p. 23)
For 1 sec.
➥ Push for 1 sec. to switch the operating
mode between USB and LSB or between
CW and CW narrow during SSB or CW
mode, respectively.
#1 FM•FM-NARROW SWITCH [FM•FM-N] (p. 23)
➥ Push to switch the operating mode between FM and FM repeater mode.
• The duplex operation can be made in MAIN
band only, it cannot be operated in SUB
band.
For 1 sec.
➥ Push for 1 sec. to switch the operating
mode between FM and FM-N (FM narrow).
• The FM-N mode cannot be selected in
1200 MHz band operation.
#2 TONE SWITCH [TONE]
➥ Push to turn the tone encoder function
ON and OFF in FM mode. (p. 31; except
for European version)
• “T” indicator appears in the display when the
tone encoder is activated.
➥ Push for 1 sec. to select the duplex (repeater) direction or to turn the function
OFF. (p. 34)
• The duplex operation is not available for the
SUB band.
#0 @9
➥ Push to transmit a 1750 Hz repeater tone
in FM mode for European version.
Available repeater tones
67.0
69.3
71.9
74.4
77.0
79.7
82.5
085.4
088.5
091.5
094.8
097.4
100.0
103.5
107.2
110.9
114.8
118.8
123.0
127.3
131.8
136.5
141.3
146.2
151.4
156.7
159.8
162.2
(Unit: Hz)
165.5
167.9
171.3
173.8
177.3
179.9
183.5
186.2
189.9
192.8
196.6
199.5
203.5
206.5
210.7 254.1
218.1
225.7
229.1
233.6
241.8
250.3
#3 MAIN/SUB CHANGE•BAND SWITCH
[M/S•BAND]
➥ Push to replace the MAIN band’s frequency and mode with the SUB band’s.
(p. 19)
For 1 sec.
➥ Push for 1 sec. to change the operating
band during single band operation or
when the optional band unit, UX-910, is
installed. (p. 20)
PANEL DESCRIPTION
#4 SUB•SUB OFF SWITCH [SUB•SUB OFF]
➥ Push to enable the SUB band control
from the tuning dial, keypad, etc. (p. 19)
• “SUB” indicator appears.
➥ Push for 1 sec. to turn the SUB band
readout indication ON and OFF. (p. 24)
For 1 sec.
#5 CALL•TONE SQUELCH SWITCH [CALL•T-SQL]
➥ Push to select the call channel of the operating band. The call channel can be selected from both the VFO and memory
mode operation. (p. 43)
➥ Push for 1 sec. to turn the tone squelch
function ON and OFF during FM mode
operation. (p. 30)
For 1 sec.
• “T-SQL” indicator appears when the tone
squelch is activated.
2
PANEL DESCRIPTION
■ Function display
e r
FMN USB LSB CW N
DUP SPLIT RIT
VFO A
VFO B
MEMO
@4
T-SQL ATT P.AMP AFC NB FAGC NR ANF
S 1
@3
20
@2
@6
OVER
@0 !9
@1
@5 q
NOR
60dB
40
!8
SWP COMP
MP 9600
SCAN VOX SET
!7 !6 !5!4
w e
FM N USB LSB C W N
SUB
B L AN K
!3
RIT
VFO A
VFO B
MEMO
SATL
RE V
.AMP AFC
T-SQ
SQL ATT P.AMP
AFCNB
NB F AGC NR A NF
@7
@8
S 1
40
20
LOCK
@3 @4 @2
@1
q FREQUENCY READOUTS (p. 22)
Shows the operating frequency.
• Setting item name is indicated during set mode. (p. 55)
w MODE INDICATOR (p. 23)
Shows the selected operation mode.
e TUNING STEP INDICATOR (p. 22)
Appears when the 1 kHz or 1 MHz tuning step is selected.
r DUPLEX INDICATOR (p. 34)
Either “DUP–” or “DUP+” appears during duplex (repeater) operation.
t SPLIT INDICATOR (p. 37)
Appears during split operation.
y RIT INDICATOR (p. 27)
➥ Appears while the RIT function is activated.
➥ Flashes while the SUB dial function is activated.
u VFO INDICATOR (p. 21)
Either VFO A or VFO B appears during VFO operation.
10
!0
!1
!2
@0
!9
!8 !7
60dB
OVER
BLANK
BL
NK
SWP
SCAN
!0
!5
!6
i MEMORY MODE INDICATORS/MEMORY
CHANNEL NUMBER READOUTS (p. 40)
The memory mode indicator appears during memory mode operation and the memory channel number readout shows the selected memory channel
number during both the memory and VFO mode operation.
✔ Memory channel number readout
In addition to the memory channel number indication, the
memory channel number readout indicates 10 Hz and 1 Hz
digits of operating frequency while rotating the tuning dial in
SSB or CW mode with 10 or 1 Hz tuning step. After 2 sec.
from tuning dial operation, the readout indicates the memory
channel number.
o AUTO NOTCH FILTER INDICATOR (p. 31)
Appears when the optional DSP unit, UT-106, is installed, and the ANF (Automatic Notch Filter) function is activated.
!0 BLANK INDICATOR (p. 42)
Appears when the selected memory channel has
not been programmed or has been cleared.
PANEL DESCRIPTION
!1 DATA TRANSMISSION SPEED INDICATOR
(p. 52)
Appears when 9600 bps speed is selected for
packet transmission.
@4 TONE SQUELCH INDICATOR (pgs. 30, 34)
“T” appears when the tone encoder function is activated; “T-SQL” appears when the tone squelch function is activated.
!2 SPEECH COMPRESSOR INDICATOR (p. 36)
Appears when the speech compressor is activated.
@5 SUB INDICATOR (p. 19)
Appears when the SUB band access is enabled.
!3 SET INDICATOR (p. 55)
Appears when [SET] is pushed.
Disappears after any switch is pushed.
!4 VOX INDICATOR (p. 33)
Appears when the VOX function is activated.
@6 SATELLITE INDICATOR (p. 49)
Appears while satellite operation mode is selected.
• SATL - NOR : Satellite operation with normal mode
is selected.
• SATL - REV : Satellite operation with reverse mode
is selected.
!5 SWEEP INDICATOR (p. 29)
Flashes while the simple bandscope function is activated.
@7 REMOTE INDICATOR (p. 78)
Appears when the transceiver is controlled remotely
via the optional CI-V level converter, CT-17.
!6 SCAN INDICATOR (p. 46)
Flashes while scanning.
@8 LOCK INDICATOR (p. 25)
Appears when the dial lock function is activated.
!7 NOISE REDUCTION INDICATOR (p. 31)
Appears when the optional DSP unit, UT-106, is installed and the noise reduction is activated.
!8 AGC TIME CONSTANT INDICATOR (p. 28)
Appears when the FAST AGC time constant is selected; disappears when the SLOW AGC time constant is selected.
!9 NOISE BLANKER INDICATOR (p. 30)
Appears when the noise blanker function is activated.
@0 AUTO FREQUENCY CONTROL INDICATOR
(p. 28)
Appears when the AFC (Automatic Frequency Control) function is activated.
@1 PRE-AMP INDICATOR (p. 16)
Appears when the optional pre-amplifier unit,
AG-25, AG-35 and/or AG-1200, is connected and
the pre-amplifier function is activated.
@2 ATTENUATOR INDICATOR (p. 29)
Appears when the attenuator is activated.
@3 MULTI-FUNCTION BAR METER
➥ Shows the receiving signal strength as an Smeter while receiving. Peak hold function is available and can be switched ON and OFF in regular
set mode. (pgs. 26, 56)
➥ Shows the relative transmit output power level as
an RF power indicator during transmit. (p. 32)
➥ Shows signal availability in the sweeping band,
and the “▼” indicator indicates the center of the
sweeping frequency band.
11
2
PANEL DESCRIPTION
■ Rear panel
!2
!1
q 430(440) MHz ANTENNA CONNECTOR (p. 15)
Accepts a 50 Ω antenna with a type-N connector.
w DC POWER SOCKET [DC 13.8V] (p. 17)
Accepts 13.8 V DC through the supplied DC power
cable (OPC-657A).
!0
y t
u KEY JACK [KEY] (p. 15)
Accepts a paddle, a straight key or external electronic keyer with 1⁄8 inch standard plug.
(+)
(_)
Rear panel _
view
e 144 MHz ANTENNA CONNECTOR (p. 15)
Accept a 50 Ω antenna with a PL-259 connector.
r SUB BAND EXTERNAL SPEAKER JACK
[SP (SUB)]
t MAIN BAND EXTERNAL SPEAKER JACK
[SP (MAIN)] (p. 16)
Accepts a 4–8 Ω speaker.
By connecting an external speaker for each or both
jacks, the audio for both the MAIN and SUB bands
is output as follows.
No
SP (MAIN)
SP (SUB)
Both
MAIN AF
Int. SP
Ext. SP
Int. SP
Ext. SP (MAIN)
SUB AF
Int. SP
Ext. SP
Ext. SP
Ext. SP (SUB)
y 1200 MHz ANTENNA CONNECTOR (p. 15)
Available when the optional 1200 MHz band unit is
installed. Accepts a 50 Ω antenna with a type-N
connector.
12
(dot)
(com)
(dash)
i SUB BAND DATA SOCKET [DATA (SUB)]
o MAIN BAND DATA SOCKET [DATA (MAIN)]
(p. 13)
6-pin mini plug DIN jack to connect a TNC, etc. for
high speed data communications.
Simultaneous data communications are provided by
equipping independent data sockets for both MAIN
and SUB bands.
!0 ACCESSORY SOCKET [ACC(1)]
Enables connection of external equipment such as
a TNC for data communications, etc.
• See the right table for socket information.
!1 CI-V REMOTE CONTROL JACK [REMOTE]
(p. 78)
Designed for use with a personal computer via the
optional CT-17 for remote control of transceiver
functions.
!2 GROUND TERMINAL [GND] (p 14)
Connect this terminal to a ground to prevent electrical shocks and other problems.
PANEL DESCRIPTION
D ACC SOCKETS
ACC(1) Socket
Pin No.
Pin Name
Description
NC
No connection.
GND
Connect to ground.
SEND
Input terminal to transmit the trans- Transmit voltage : –0.5 to +0.8 V
ceiver in relation to the external equip- Output current
: Less than 20 mA
ment. (Grounded: transmits)
Input current (Tx) : Less than 200 mA
MOD
AF
SQLS
13.8 V
ALC
Specification
Input terminal for the modulation cir- Output impedance : 10 kΩ
cuit.
Input level
: 100 mV rms
Output terminal for AF signals from Output impedance : 4.7 kΩ
the AF detector circuit. Output level is Output level
: 100–300 mV rms
fixed, regardless of [AF] control.
Output terminal for squelch condition Squelch open
(Open/Close). Outputs grounded level Squelch close
signal when squelch is opened.
: Less than 0.3 V/5 mA
: More than 6.0 V/100 µA
Output terminal for 13.8 V DC, in rela- Output current
tion to the [POWER].
: Less than 1 A
Input terminal for ALC control.
Input impedance
Control voltage
: More than 10 kΩ
: –4 to 0 V
D DATA SOCKETS
DATA Socket
Pin No.
Pin Name
Description
DATA IN Input terminal for data (common for both 1200 and 9600 bps)
GND
Ground line for the DATA IN, DATA OUT and AF OUT.
PTTP
Transmits when this terminal is grounded.
DATA
OUT
Received data output terminal for 9600 bps operation.
AF OUT
Received data output terminal for 1200 bps operation.
SQL
Output terminal for squelch condition (Open/Close). Outputs grounded level signal
when squelch is opened, +8 V level signal when squelch is closed.
13
3
INSTALLATION AND CONNECTIONS
■ Unpacking
■ Selecting a location
After unpacking, immediately report any damage to the
delivering carrier or dealer. Keep the shipping cartons.
Select a location for the transceiver that allows adequate air circulation, free from extreme heat, cold, or
vibrations, and away from TV sets, TV antenna elements, radios and other electro-magnetic sources.
For a description and a diagram of accessory equipment included with the IC-910H, see ‘Supplied accessories’ on p. 1 of this manual.
The base of the transceiver has an adjustable stand for desktop use. Set the stand
to depending on your
operating conditions.
■ Grounding
To prevent electrical shock, television interference
(TVI), broadcast interference (BCI) and other problems, ground the transceiver through the GROUND
terminal on the rear panel.
For best results, connect a heavy gauge wire or strap
to a long earth-sunk copper rod. Make the distance between the [GND] terminal and ground as short as possible.
R WARNING: NEVER connect the [GND]
terminal to a gas or electric pipe, since the connection could cause an explosion or electric shock.
■ Antenna connection
For radio communications, the antenna is of critical importance, along with output power and sensitivity. Select antenna(s), such as a well-matched 50 Ω antenna,
and feedline. 1.5:1 or better of Voltage Standing Wave
Ratio (VSWR) is recommended for your desired band.
Of course, the transmission line should be a coaxial
cable.
CAUTION: Protect your transceiver from lightning
by using a lightning arrestor.
PL-259 CONNECTOR INSTALLATION EXAMPLE
TYPE-N CONNECTOR INSTALLATION EXAMPLE
30 mm
Coupling ring
Soft
solder
Slide the nut, rubber
gasket and clamp over the
coaxial cable, then cut the
end of the cable evenly.
Washer
Strip the cable as shown at
left. Soft solder the center
conductor.
Clamp
3 mm
solder solder
Slide the connector body
on and solder it.
Center
conductor
Strip the cable and fold the
braid back over the clamp.
1–2 mm
15 mm
Slide the coupling ring
down. Strip the cable
jacket and soft solder.
10 mm (soft solder)
10 mm
Nut Rubber gasket
6 mm
Solder hole
No space
Screw the coupling ring
onto the connector body.
Be sure the center conductor is
the same height as the plug body.
Soft solder the center
conductor. Install the
center conductor pin and
solder it.
Carefully slide the plug
body into place aligning the
center conductor pin on the
cable. Tighten the nut onto
the plug body.
30 mm ≈ 9⁄8 in 10 mm ≈ 3⁄8 in 1–2 mm ≈ 1⁄16 in
14
INSTALLATION AND CONNECTIONS
■ Required connections
• Front panel
HEADPHONES
Input impedance:
8–16 Ω
Audio output power:
5 mW with 8 Ω load
Output power may differ
according to the headphone
HM-12 HAND
MICROPHONE
MICROPHONE CONNECTOR (Front panel view)
SM-20 DESKTOP
MICROPHONE (optional)
q MIC (Microphone input)
w +8V (Max. 8 V DC 10 mA)
e MIC U/D (Frequency up/down)
r SQL S (Squelch switch)
t PTT
y GND (PTT ground)
u GND (Microphone ground)
i AF OUT (varies with [AF])
CAUTION: DO NOT short pin 2 to ground as this can damage the
internal 8 V regulator. DC voltage is applied to pin 1 for microphone
operation. Take care when using a non-Icom microphone.
• Rear panel
[430(440)MHz ANT]
(p. 14)
DC POWER SUPPLY (p. 17)
[144MHz ANT] (p. 14)
13.8 V DC
More than 25 A
GROUND (p. 14)
[1200MHz ANT] (p. 14)
[KEY] jack (p. 38)
Required for optional
UX-910 operation.
(dot)
(com)
(dash)
15
3
INSTALLATION AND CONNECTIONS
■ Advanced connections
• Front panel
MB-23 CARRYING HANDLE
• Rear panel
PREAMP (p. 59)
(144 MHz/430(440) MHz/1200 MHz)
144 MHz
: AG-25
430(440) MHz : AG-35
1200 MHz
: AG-1200
External all-weather, mast
mounting preamplifiers are
available.
430(440) MHz
EXTERNAL SPEAKER
(MAIN/SUB) (p. 12)
CAUTION: NEVER
connect equipment
(i.e. power, SWR meter)
between transceiver
and preamplifier.
icom
sp-7
Use 4–8 Ω speakers.
1200 MHz (optional)
144 MHz
MAIN SUB
MAIN
[REMOTE] (p. 78)
CT-17
Used for computer control and transceive
operation.
16
SUB
ACC SOCKETS
(pgs. 13, 52)
Used for external
equipment control.
DATA SOCKETS
(MAIN/SUB) (pgs. 13, 52)
INSTALLATION AND CONNECTIONS
■ Power supply connections
Use an optional DC power supply with a 25 A capacity
and above when operating the transceiver with AC
power. Refer to the diagrams below.
CAUTION: Before connecting the DC power
cable, check the following important items. Make
sure:
• The [POWER] switch is OFF.
• Output voltage of the power source is 12–15 V
when you use a non-Icom power supply.
• DC power cable polarity is correct.
Red
Black
: positive + terminal
: negative _ terminal
CONNECTING A DC POWER SUPPLY
AC outlet
A DC power supply
Supplied DC
power cable
IC-910H
13.8 V DC 25 A
Black Red
AC cable
CONNECTING A VEHICLE BATTERY
24V
NEVER use the cigarette lighter socket as
a power source.
NEVER connect to
a 24 V battery.
Ciga
NOTE: Use terminals for
the cable connections.
IC-910H
+ red
Crimp
_ black
Grommet
Solder
12 V
battery
Supplied
DC power cable
17
4
BASIC OPERATION
■ Initial settings
CCW
After resetting the transceiver, set controls and
switches as shown in the figure below.
: Max. counterclockwise
[AF] (MAIN band):
CCW
[RF/SQL] (MAIN band):
[SATELLITE]: OFF
[POWER]: OFF
12 o’clock
[TRANSMIT]: OFF
[COMP]: OFF
[VOX]: OFF
[RIT]: OFF
[AF] (SUB band):
CCW
[SHIFT]: 12 o’clock
[RF/SQL]: (SUB band)
12 o’clock
[MIC]: CCW
[AGC]: OFF
[SET]: OFF
[RIT]: 12 o’clock
[AFC/NB]: OFF
[ATT(P.AMP)]: OFF
[RF PWR]: CCW
Turn power ON, then check the display. If any of the following indicators appear, turn them OFF as follows:
• Quick tuning step indicator “▼” : Push [kHz/MHz].
• RIT indicator “RIT”
: Push [RIT].
• Split indicator “SPLIT”
: Push [SPLIT].
■ When first applying power (CPU resetting)
Before first applying power, make sure all connections
required for your system are complete by referring to
Chapter 3. Then, reset the transceiver using the following procedure.
q Make sure the transceiver power is OFF.
w While pushing [MW 4] and [M-CL 5], push
[POWER] to turn power ON.
• The internal CPU is reset.
• The transceiver displays its initial VFO frequencies when
resetting is complete.
[POWER]
[MW 4] [M-CL 5]
Resetting CLEARS all programmed contents in
memory channels and returns programmed values
in set mode to default values.
18
FM
S 1
VFO A
20
40
60dB
FM
S 1
VFO A
VF
20
40
60dB
BASIC OPERATION
■ MAIN and SUB bands
The IC-910H has dual bands: 144 MHz and 430(440)
MHz. These bands can be assigned to the MAIN and
SUB bands for operating convenience.
Each MAIN and SUB bands have independent features.
MAIN band display
FM
S 1
VFO A
20
40
60dB
FM
The MAIN band is the operation for both transmit and
receive, and is displayed in the upper area of the function display. The SUB band is the operation for only receive, and is displayed in the lower area of the function
display.
S 1
VFO A
VF
40
20
60dB
SUB band display
Simultaneous receive on both the MAIN and SUB
bands is possible, however the transmission can
only be transmitted on the MAIN band— not on the
SUB band.
In the case of satellite operation mode, the SUB
band is used for the transmission band.
◊ Exchanging the MAIN and SUB bands
The function display shows both the MAIN and SUB
band frequencies and both bands can receive signals
simultaneously.
Assign 144 MHz or 430(440) MHz band, whichever
band you want to transmit or be called on, as the MAIN
band.
➥ Push [M/S] to exchange the MAIN and SUB bands.
MAIN band display
FM
S 1
VFO A
20
40
60dB
S 1
FM
S 1
FM
VFO A
20
40
40
60dB
FM
VFO A
VF
20
S 1
60dB
VFO A
VF
20
40
60dB
SUB band display
◊ Accessing the SUB band
Normally, any operations, such as tuning, operating
mode selection, memory channel selection and programming, etc., are performed on the MAIN band.
However, these operations can be performed on the
SUB band by using the SUB band access capability.
FM
S 1
VFO A
20
40
60dB
VFO A
VF
20
40
• “SUB” indicator appears while the SUB band access capability is activated.
• Even during SUB band access, transmission cannot be
made on the SUB band.
FM
S 1
FM
S 1
➥ Push [SUB] to switch the SUB band access capability ON and OFF.
60dB
VFO A
40
60dB
FM
SUB
S 1
20
VFO A
VF
20
40
60dB
19
4
BASIC OPERATION
■ Operating band selection (optional UX-910 is required)
The IC-910H can be used on the additional 1200 MHz
band with the optional UX-910. The operating band
can be selected by pushing [M/S•BAND] for 1 sec.
◊ Selecting on the MAIN band
q Push [SUB] to cancel the SUB band access, if required.
w Push [M/S•BAND] for 1 sec. to select operating
band.
[SUB] [M/S•BAND]
Select 1200 MHz to MAIN band.
FM
S 1
VFO A
20
40
60dB
NOTE: The same operating band cannot be assigned on both MAIN and SUB bands, simultaneously.
VFO A
VF
S 1
◊ Selecting on the SUB band
q Push [SUB] to enable the SUB band access.
20
40
60dB
Select 1200 MHz to SUB band.
FM
VFO A
• “SUB” indicator appears.
w Push [M/S•BAND] for 1 sec. to select operating
band.
S 1
20
40
60dB
FM
SUB
S 1
20
VFO A
VF
20
40
60dB
BASIC OPERATION
■ VFO description
The IC-910H has two VFOs for both bands, specially
suited for instant selection of 2 frequencies or split frequency operation. The VFOs are called VFO A and
VFO B. You can use the desired VFO to call up a frequency and operating mode for your operation.
VFO selection
FM
VFO A
VFO is an abbreviation of Variable Frequency Oscillator, and traditionally refers to an oscillator.
◊ Selecting the VFO A/B
FM
VFO B
➥ Push [A/B 3] to switch between the VFO A and
VFO B.
◊ VFO equalization
➥ Push [A=B 2] for 1 sec. to equalize the undisplayed
VFO condition to the displayed VFO.
displayed VFO
FM
VFO A
• 3 beeps sound when the VFO equalization is completed.
CONVENIENT
Use two VFOs as a quick memory
When you find a new station, but you wish to continue searching, the two VFO system can be used
for quick memory storage.
q Push [A=B 2] for 1 sec. to store the displayed frequency into the undisplayed VFO.
w Continue searching for stations.
e Push [A/B 3] to retrieve the stored frequency.
r To continue searching for stations, push [A/B 3]
again.
undisplayed VFO
FM
VFO B
Equalizes the undisplayed VFO condition
to the displayed VFO.
21
4
BASIC OPERATION
■ Frequency setting
The IC-910H has several tuning steps and a
[kHz/MHz] switch for convenient frequency tuning.
q Push [M/S] to select the desired frequency band as
the MAIN band; or push [SUB] to access the SUB
band.
w Rotate the tuning dial to select the frequency.
USB
VFO A
While tuning
USB
• The memory channel number changes to the 10 and
1 Hz digits when rotating the tuning dial with 1, 10,
100 Hz and 6.25 kHz tuning steps.
• When you want to check the 10 and 1 Hz digits during
memory channel number indication, push and hold [A/B]
(10 and 1 Hz digits are indicated while holding).
10 Hz/1 Hz indication
◊ Tuning step selection
Tuning steps can be pre-set independently for FM and
SSB/CW. The following steps are selectable.
• FM
: 0.1, 5, 6.25, 10, 12.5, 20, 25 or 100 kHz
• SSB/CW : 1, 10, 50 or 100 Hz
q Push [M/S] to select the desired frequency band as
the MAIN band; or push [SUB] to access the SUB
band.
w Push [FM] or [SSB/CW] to select the desired operation mode.
e Push [kHz/MHz•TS] for 1 sec. to enter the tuning
step set mode.
r Rotate the tuning dial to select the desired tuning
step.
t Push [kHz/MHz•TS] to return to previous display.
[kHz/MHz•TS] for 1 sec.
FM mode tuning step set mode
FM
(20 kHz tuning step)
SSB/CW mode tuning step set mode
USB
(10 Hz tuning step)
◊ Quick tuning step
The operating frequency can be changed in 1 kHz
steps or 1 MHz steps for quick tuning.
➥ Push [kHz/MHz•TS] to switch the quick tuning step
in sequence 1 kHz, 1 MHz and OFF.
1 MHz tuning step
FM
[kHz/MHz•TS]
22
1 kHz tuning step
VFO A
BASIC OPERATION
◊ Frequency setting with the keypad
The operating frequency can be directly entered from
the keypad.
q Push [F-INP ENT] to access the keypad frequency
entry.
• All digits of frequency indication disappear.
w Push numeral keys to enter the desired operating
frequency.
• The entered number is indicated from the 100 Hz digit.
[EXAMPLE]
145.3400 MHz
[F-INP ENT] [1] [4] [5] [.] [3] [4] [F-INP]
435.0000 MHz
[F-INP ENT] [4] [3] [5] [.] [F-INP ENT]
439.1200 MHz
[F-INP ENT] [4] [3] [9] [.] [1] [2] [F-INP ENT]
e Push [F-INP ENT] to set the frequency.
keypad
439.1200 MHz to 439.2604 MHz
[F-INP ENT] [.] [2] [6] [0] [4] [F-INP ENT]
Pushing numeral keys to 100 Hz digit without pushing [.] also sets the desired operating frequency.
◊ Operating mode selection
SSB (USB/LSB), CW, CW-N (CW narrow), FM and
FM-N (FM narrow) modes are available in the
IC-910H. Select the desired operation mode as follows.
• Selecting SSB mode
➥ Push [SSB/CW] to select USB mode.
• USB mode is generally used for SSB phone operation
on the VHF and UHF bands.
• Push [SSB/CW] for 1 sec. after USB mode selection to
switch between USB and LSB mode.
• Selecting CW mode
➥ Push [SSB/CW] to select CW mode.
[FM] [SSB/CW]
• Push [SSB/CW] for 1 sec. after CW mode selection to
switch between CW and CW narrow mode.
The optional CW narrow filter, FL-132 or FL-133, is
required for the MAIN or SUB bands, respectively.
In satellite operation, the optional FL-133 is necessary to operate CW narrow mode in the MAIN (receive) band. No audio is output until the optional CW
narrow filter is installed in the CW narrow mode.
• Selecting FM mode
➥ Push [FM] to select FM mode.
• Push [FM] after FM mode selection to turn the repeater
mode (duplex negative with repeater tone ON) ON and
OFF.
• Push [FM] for 1 sec. after FM mode selection to switch
between FM and FM narrow mode.
23
4
BASIC OPERATION
■ SUB band OFF
The SUB band indication can be deactivated to simplify operation.
➥ Push [SUB•SUB OFF] for 1 sec. to turn the SUB
band indication ON and OFF.
• Push [M/S•BAND] for 1 sec. to change the operating
band. (p. 20)
FM
S 1
VFO A
20
40
60dB
[SUB•SUB OFF] for 1 sec.
SUB band indication OFF.
■ SUB tuning dial
The IC-910H has a large main tuning dial for frequency
setting. In addition, the [RIT] or [SHIFT] controls can
be used as a SUB tuning dial for dual band simultaneous tuning, etc. The SUB tuning dial changes the operating frequency continuously at a variable speed.
The assigned control can be used for its original
function, however, both functions cannot be used simultaneously.
To use the SUB tuning dial function, assign the function to either the [RIT] or [SHIFT] control using the
RIT/SHIFT set mode.
◊ When the [RIT] control is assigned as
SUB tuning dial
FM
RIT
VFOA
q Push [RIT] for 1 sec.
• “RIT” indicator flashes when the SUB tuning dial function is activated.
w Rotate [RIT] control for the desired tuning direction
and speed.
S 1
20
40
60dB
FM
VFOA
• Tuning speed can be adjusted in ±5 steps.
e Set [RIT] control to the center position to stops tuning.
• A beep tone sounds when [RIT] control is set to the center.
r Push [RIT] to cancel the SUB tuning dial function.
S 1
20
40
60dB
While [RIT] is flashing, SUB band can be
controlled with sub dial function.
Reverses the
frequency and
increases the
speed.
24
SUB dial
functions
slightly.
Advances the
frequency and
increases the
speed.
BASIC OPERATION
◊ SUB tuning dial assignment
q Push [SET] then [RIT] to enter the RIT/SHIFT set
mode.
w Push [DN ▼] or [▲ UP] to select [RIT] or [SHIFT]
control to be assigned.
• “rit nob” or “SFt nob” appears.
e Rotate the tuning dial to select the condition as described below.
[RIT]
[SHIFT]
[RIT]
[DN ▼] [▲ UP]
[SET]
• Pushing [M-CL 5] for 1 sec. selects the default setting.
r Push [SET] to exit from the RIT/SHIFT set mode.
The [RIT] control functions as [RIT]
even when the SUB tuning dial
function is in use. (default)
The [SHIFT] control functions as
[SHIFT] even when the SUB tuning
dial function is in use. (default)
The [RIT] control can be used for
MAIN band tuning.
The [SHIFT] control can be used for
SUB band IF shift control.
The [RIT] control can be used for
SUB band tuning.
The [SHIFT] control can be used for
MAIN band tuning.
The [RIT] control can be used for
SUB band IF shift control.
The [SHIFT] control can be used for
SUB band tuning.
■ Dial lock function
The dial lock function prevents accidental changes
caused by the tuning dial (including the SUB tuning dial
function).
➥ Push [SPCH•LOCK] for 1 sec. to turn the dial lock
function ON and OFF.
FM
S 1
VFO A
• “LOCK” indicator appears while the dial lock function is
activated.
20
40
60dB
FM
S 1
VFO A
VF
20
40
60dB
LOCK
LOCK indicatior
[SPCH•LOCK] for 1 sec.
25
5
RECEIVE AND TRANSMIT
■ Functions for receive
◊ Volume setting
[AF] (MAIN)
➥ Rotate [AF] control for the specified operating band
(MAIN or SUB) to output a suitable audio level.
[AF] (SUB)
◊ Squelch setting
The squelch removes noise output from the speaker
(closed position) when no signal is received. The
squelch is particularly effective for FM. It is also available for other modes.
With the default setting, noise squelch and S-meter
squelch in FM, RF gain and S-meter squelch in
SSB/CW mode operation are assigned to [RF/SQL]
control. The assignment can be changed in the general set mode. (p. 56)
• When operating in FM
q Rotate [RF/SQL] fully counterclockwise.
w Rotate [RF/SQL] clockwise to the position where
the noise just disappears.
• MAIN/SUB band indicator also goes OFF.
By rotating [RF/SQL] to a deeper position (clockwise),
the S-meter will move and the S-meter squelch function will be activated. When the S-meter squelch is activated, weak signals, weaker than the S-meter
squelch set level, are ignored.
26
[RF/SQL] (MAIN)
[RF/SQL] (SUB)
• When operating in SSB/CW
q Rotate [RF/SQL] fully counterclockwise.
w Rotate [RF/SQL] clockwise to the position where
the maximum RF gain (S-meter bar disappears),
MAIN/SUB band indicator goes OFF, and floor
noise disappears.
• With the default setting, the squelch opens at 12 o’clock
position, however, the squelch threshold level can be set
to 13 o’clock (1 o’clock) position in the SSB/CW set
mode. (p. 62)
• When rotating [RF/SQL] counterclockwise, RF gain decreases (lower sensitivity) and the S-meter bar appears
to indicate the receivable RF signal level.
RECEIVE AND TRANSMIT
■ RIT function
The RIT (Receive Incremental Tuning) function compensates for off-frequencies of the communicating station without moving the transmit frequency.
The RIT function can be used for the MAIN band only.
The function affects the MAIN band even when accessing the SUB band.
q Push [RIT] to turn the RIT function ON.
◊ RIT variable range
SSB/CW mode : ±1.0 kHz in 10 Hz steps (±2.0 kHz for
optional 1200 MHz band)
FM mode
: ±5.0 kHz in 50 Hz steps (±10.0 kHz
for optional 1200 MHz band)
FM mode
RIT
FM
• “RIT” indicator appears.
w Rotate [RIT] control to cancel the off-frequencies.
• Rotate [RIT] control to the center position, after communication.
e Push [RIT] to cancel the RIT function.
• “RIT” indicator disappears.
[RIT] switch
RIT variable range is displayed for 2 sec.
and then returns to frequency indication.
SSB mode
USB
RIT
RIT variable range is displayed for 2 sec.
and then returns to frequency indication.
[RIT] control
■ IF shift function
The IF shift function electronically changes the passband frequency of the IF (Intermediate Frequency) and
cuts out higher or lower frequency components of the
IF to reject interference. The function shifts the IF frequency up to ±1.2 kHz in 100 Hz steps in SSB/CW
mode. The IF shift is especially useful in SSB operation and not available in FM mode.
The IF shift function can be used for the SUB band
using the SUB tuning dial function (p. 24)
◊ MAIN band IF shift operation
q Set the [SHIFT] control to its center position when
there is no interference.
w Rotate the [SHIFT] control to adjust for minimum interference signal level.
• The audio tone may change while the IF shift is in use.
Max. counterclockwise position
Center position
◊ SUB band IF shift operation
q Assign the SUB band IF shift function to either [RIT]
or [SHIFT] control using the RIT/SHIFT set mode
(p. 68).
w Push [RIT] for 1 sec. to turn the SUB tuning dial
function ON.
• “RIT” indicator flashes.
e Rotate [RIT] or [SHIFT] control for a minimum interference signal level.
r Push [RIT] to cancel the SUB tuning dial function.
• “RIT” indicator disappears.
• Set [RIT] or [SHIFT] control to the center position after
the communication.
In satellite operation mode, the SUB tuning dial
function cannot be activated. Therefore, the [SHIFT]
control acts as an IF shift for the receive band (displayed in the upper area).
Max. clockwise
position
27
5
RECEIVE AND TRANSMIT
■ AGC time constant
The AGC (Automatic Gain Control) controls receiver
gain to produce a constant output level even when the
received signal strength is varied by fading, etc. Use
AGC slow for normal phone operation; AGC fast for receiving data and searching for signals.
➥ Push [AGC] to switch the time constant between
fast and slow.
[AGC]
• “FAGC” indicator appears when AGC fast is selected.
• The AGC time constant is fixed in FM mode regardless
of the FAGC indicator.
VFO A
CW
The SUB band’s AGC is automatically selected as
slow in SSB and fast in CW. AGC time constant cannot
be changed in FM mode.
FAGC
■ AFC function
The AFC (Automatic Frequency Control) automatically
tunes the operating frequency when receiving an offfrequency signal or receiving signal shifts in FM or FM
narrow mode.
➥ Push [AFC/NB] to turn the AFC function ON and
OFF.
• “AFC” indicator appears when the AFC function is activated.
When strong nearby signals are available, the AFC
function may tune to those signals.
[AFC/NB]
FM
VFO A
AFC
■ FM center indicator
The MAIN/SUB band indicators indicate the received
signal deviation in FM mode. When an off-center signal is received, the indicator flashes.
When an off-center signal is received, rotate the tuning dial or use the RIT function to illuminate the indicator continuously.
The FM center indicator can be turned OFF using the
FM set mode. (p. 61)
28
Flashes in 300 msec. intervals.
RECEIVE AND TRANSMIT
■ Attenuator
The attenuator prevents desired signals from distorting
when very strong signals are near the desired frequency, or when very strong electric fields, such as
from broadcasting stations are near from your location.
The attenuator can be set to both or either band separately, and the attenuation level can be set for each
band independently.
[ATT]
➥ Push [ATT] to turn the attenuator ON and OFF.
VFO A
CW
• “ATT” indicator appears when the attenuator is activated.
ATT
◊ Setting the attenuation level
q Push [M/S•BAND] or [SUB] to select the desired
band of the attenuation level to be set.
w Push [SET] then [ATT] to enter the attenuator set
mode.
e Rotate the tuning dial to select attenuation level.
• Push [M-CL 5] to return to the default value.
r Push [SET] to exit the attenuator set mode.
Attenuation levels
144 MHz/
430(440) MHz bands
1200 MHz band
NOTE: When using the noise blanker, received
audio may be distorted if they are excessively
strong.
0–100% variable
Approx. 15 dB attenuation
at 100% setting
Approx. 20 dB fixed
(optional)
■ Simple band scope
This function allows you to visually “sweep” an area
surrounding the set frequency for other signals. Detected signals are indicated graphically on the S-meter.
[SWP 0]
q Set the operating frequency and mode.
w Push [SWP 0] to turn the simple band scope function ON and OFF.
• “SWP” indicator flashes when the simple band scope
function is activated.
• Detected signals are indicated using the S-meter and
“▼” indicator, displayed above the S-meter, shows the
center frequency (displayed frequency).
• The signal availability is detected by the noise squelch
condition (open or close).
Shows ±10 channels around the displayed
frequency.
FM
e To monitor the detected signal, rotate the tuning dial
to set the appearing “dot” of the S-meter to below
the “▼” indicator.
• The frequency readout shows the detected signal frequency.
VFOA
SWP
Indicates detected signals
Sweep center
◊ Setting sweeping time interval
q Push [SET] then [SWP 0] to enter the sweep set
mode.
w Rotate the tuning dial to select sweeping time interval.
• Push [M-CL 5] to return to the default value.
e Push [SWP 0] to exit the sweep set mode.
29
5
RECEIVE AND TRANSMIT
■ Noise blanker
When operating in SSB or CW mode, pulse-type noise
may be received such as from car ignitions. In this
case, the noise blanker eliminates such noise.
The noise blanker is effective on both the MAIN and
SUB bands but cannot be used for FM, or non-pulsetype noise.
[AFC/NB]
➥ Push [AFC/NB] to turn the noise blanker function
ON and OFF.
VFO A
CW
• “NB” indicator appears when the noise blanker is activated.
• The noise blanker turns ON or OFF for both bands simultaneously.
NB
When using the noise blanker, received audio may
be distorted if the signals are excessively strong.
■ Tone squelch operation
The tone squelch opens only when receiving a signal
with the same pre-programmed subaudible tone. You
can silently wait for a call from group members using
the same tone. You can check the tone frequency using
the tone scan function if desired. (p. 47)
q Select the desired band by pushing [M/S•BAND].
w Push [FM] to select FM mode, then set the desired
frequency.
e Push [CALL•T-SQL] for 1 sec. to activate the tone
squelch.
• “T-SQL” indicator appears.
r When the signal with correct tone is received, the
squelch opens and audio can be heard.
• When a signal with incorrect tone or no tone is received,
the squelch does not open, however, the S-meter indicates the signal strength.
• Push and hold [CHECK 7] to open the squelch manually
and keep pushing to monitor.
t Operate the transceiver in a normal way (push
[PTT] to transmit; release [PTT] to receive).
y Push [CALL•T-SQL] for 1 sec. to cancel the tone
squelch.
◊ Setting the tone squelch frequency
The tone squelch frequencies can be independently
set for each band.
q Push [M/S•BAND] to select the band for the tone
squelch frequency to be set.
w Push [SET] then [FM] to enter the FM set mode.
e Push [DN ▼] or [▲ UP] to select tone squelch frequency item.
r Rotate the tuning dial to select the desired tone
squelch frequency.
t Push [FM] to exit from the FM set mode.
Tone frequency list
67.0
69.3
71.9
74.4
77.0
79.7
82.5
085.4
088.5
091.5
094.8
097.4
100.0
103.5
107.2
110.9
114.8
118.8
123.0
127.3
131.8
unit: Hz
136.5
141.3
146.2
151.4
156.7
159.8
162.2
165.5
167.9
171.3
173.8
177.3
179.9
183.5
186.2
189.9
192.8
196.6
199.5
203.5
206.5
210.7 254.1
218.1
225.7
229.1
233.6
241.8
250.3
• “T-SQL” indicator disappears.
[CALL•T-SQL] [FM]
FM
T-SQL
[SET]
30
Tuning dial [DN √]/[∫ UP]
VFO A
RECEIVE AND TRANSMIT
■ Optional DSP functions
optional UT-106
To activate the following functions, the optional DSP
unit, UT-106, must be installed for both or either the
MAIN and/or SUB bands.
◊ NR (Noise Reduction) function
◊ Setting the noise reduction level
This function reduces noise components and picks out
desired signals which are buried in noise. The received
audio signals are converted to digital signals and then
the desired signals are separated from the noise. The
noise reduction function is available for all operating
modes.
q Push [SET] then [AFC/NB•NR] to enter the noise
reduction set mode.
w Rotate the tuning dial to select the desired noise reduction level.
q Push [M/S•BAND] or [SUB] to select the band you
wish to activate, if required.
w Push [AFC/NB•NR] for 1 sec. to turn the noise reduction function ON and OFF.
• Push [M-CL 5] for 1 sec. to return to the default value.
e Push [AFC/NB•NR] to exit from the noise reduction
set mode.
USB
VFO A
• “NR” indicator appears while the automatic notch filter is
activated.
NR
[AFC/NB•NR] for 1 sec.
◊ ANF (Automatic Notch Filter) function
This function automatically attenuates beat tones, tuning signals, etc., even if they are moving. The automatic notch filter functions in SSB/FM modes.
Auto notch OFF
q Push [M/S•BAND] or [SUB] to select the band you
wish to activate, if required.
w Push [AGC•ANF] for 1 sec. to turn the automatic
notch filter function ON and OFF.
• “ANF” indicator appears while the automatic notch filter
is activated.
Auto notch ON
Desired
signal (AF)
Unwanted tone
frequency
Desired
signal (AF)
Particular frequency
is attenuated
USB
[AGC•ANF] for 1 sec.
VFO A
ANF
31
5
RECEIVE AND TRANSMIT
■ Functions for transmit
◊ Output power
The transmit output power can be continuously adjusted with [RF PWR].
NOTE: To prevent interference, listen on the frequency to make sure the frequency is clear before
transmitting by pushing [CHECK 7].
Available power
144 MHz band
: 5–100 W
430(440) MHz band : 5–75 W
1200 MHz band
: 1–10 W (optional)
[RF PWR]
■ Transmission via
microphone
When transmitting with a microphone, push [PTT] and
speak into the microphone at a normal voice level.
[PTT] switch
To maximize the readability of your transmitted signal (voice), pause a few sec. after pushing [PTT]. Do
not hold the microphone too close to your mouth.
◊ Microphone gain
HM-12
Rotate [MIC GAIN] clockwise to increase, counterclockwise to decrease the microphone gain.
9–12 o’clock position is recommended for [MIC GAIN].
■ Indications during transmit
◊ Transmit indicator
The MAIN band indicator lights red while transmitting.
However, the SUB band indicator lights red during
satellite operation.
◊ RF power indicator
The S-meter for the MAIN band is used as the RF
power indicator to indicate the relative output power
level. However, the S-meter for the SUB band is used
as the RF power indicator during satellite operation.
◊ Time-out timer
The time-out timer limits the continuously transmittable
time period, and is selectable from 3, 5, 10, 20, 30 min.
and OFF in TRANSMIT set mode. (p. 66)
◊ PTT lock function
Deactivate [PTT] and [TRANSMIT] switches. The function can be switched ON and OFF in TRANSMIT set
mode. (p. 66)
32
FM
S 1
VFO A
20
40
60dB
OVER
FM
S 1
VFO A
VF
20
40
60dB
OVER
S-meter while receiving
RF power indicator while transmitting
RECEIVE AND TRANSMIT
■ FM mode operation
q Push [M/S•BAND] to select the desired band.
w Push [FM] to select FM mode.
• “FM” indicator appears.
• Push [FM] again to select repeater operation after FM
mode selection. “DUP–” and “T” indicators appear.
• Push [FM] for 1 sec. to select FM narrow mode after FM
mode selection. “FMN” indicator appears.
t Speak into the microphone at a normal voice level.
• Setting the [MIC GAIN] control to 10–12 o’clock is recommended.
y Release [PTT] to receive.
[TRANSMIT]
[M/S•BAND] [FM]
e Rotate the tuning dial to set the desired frequency.
r Push [PTT] to transmit.
• The MAIN band indicator lights red.
[MIC GAIN]
Tuning dial
■ VOX operation (for SSB and FM)
The VOX (Voice-operated Transmission) function
switches between transmit and receive with your voice.
This function provides an opportunity to input log entries into your computer, etc., while operating.
◊ Adjusting the anti-VOX gain
q Push [M/S•BAND] to select the desired band.
w Push either [SSB/CW] or [FM] to select phone
mode (USB, LSB or FM).
e Push [VOX] to switch the VOX function ON and
OFF.
e Rotate the tuning dial to adjust the anti-VOX gain
while receiving a signal with a suitable audio output
level, to the point where the transceiver does not
transmit with the audio output from the speaker.
• “VOX” indicator appears while the VOX function is activated.
◊ Adjusting the VOX gain
q Push [SET] then [VOX] to enter the VOX set mode.
w Push [DN ▼] or [▼ UP] to select the VOX gain item.
•“GAIn” is displayed.
e Rotate the tuning dial to adjust the VOX gain while
speaking into the microphone at a normal voice
level, until the transceiver begins transmitting.
• With too sensitive a setting, the transceiver may transmit with other than your voice, such as noise, receiving
signal, etc.
• Push [M-CL 5] for 1 sec. to return to the default value.
q Push [SET] then [VOX] to enter the VOX set mode.
w Push [DN ▼] or [▲ UP] to select anti-VOX gain
item.
• “Anti” is displayed.
• Push [M-CL 5] for 1 sec. to return to the default value.
r Push [VOX] to exit VOX set mode.
◊ Adjusting the VOX delay
q Push [SET] then [VOX] to enter the VOX set mode.
w Push [DN ▼] or [▲ UP] to select the VOX delay
item.
• “dELAy” is displayed.
e Rotate the tuning dial to adjust the VOX delay time
while speaking into the microphone at a normal
speed, to a convenient interval before returning to
receive.
• Push [M-CL 5] for 1 sec. to return to the default value.
r Push [VOX] to exit VOX set mode.
r Push [VOX] to exit VOX set mode.
33
5
RECEIVE AND TRANSMIT
■ Repeater operation
A repeater amplifies received signals and re-transmits
them at a different frequency. When using a repeater,
the transmit frequency is shifted from the receive frequency by an offset frequency.
◊ Setting the auto repeater range
The auto repeater function automatically turns ON the
duplex operation with specified shift direction and tone
encoder when the operating frequency is set in the desired frequency range. To activate the auto repeater
function, the following operations are necessary.
!0 Push [SET] then [FM] to enter the FM set mode.
!1 Push [DN ▼] or [▲ UP] to select auto repeater item.
• “AutorPt” is displayed.
!2 Rotate the tuning dial to turn the auto repeater function ON.
U.S.A. version:
• “on1” Activates duplex only.
• “on2” Activates duplex and tone.
• “oFF” Auto repeater function is turned OFF.
Korea version:
• “ON” Activates duplex and tone.
• “OFF” Auto repeater function is turned OFF.
!3 Push [FM] to exit from the FM set mode.
q Set one edge frequency of the desired frequency
range.
• Push [M/S•BAND] to select the desired band if required.
• Push [FM] to select FM mode if required.
w Set the desired repeater conditions.
• Both one-touch repeater and manual repeater setting
are acceptable.
e Push [DN ▼] or [▲ UP] to select the memory channel 1.
• The memory channel 3 or 5 is also acceptable.
r Push [MW 4] for 1 sec. to program the contents into
the memory.
• 3 beep tones may sound.
t Set the other side edge frequency of the desired
frequency range.
y Push [▲ UP] to select the memory channel 2.
• Select memory channel 4 or 6, respectively if the memory channel 3 or 5 is selected in step e.
u Push [MW 4] for 1 sec. to program the contents into
the memory.
i Repeat steps q to u to program other ranges.
o Push [POWER] for 1 sec. to turn the power OFF
once, then push [POWER] to turn the power ON
while pushing and holding [FM] and [TONE].
• The memory channels can be used for normal operation
after programming.
◊ Setting the shift direction for the onetouch repeater function
q Push [M/S•BAND] or [SUB] to select the desired
frequency band.
w Push [SET] then [FM] to enter the FM set mode.
e Push [DN ▼] or [▲ UP] to select shift direction item.
• “o_touch” and “rPt” are displayed.
r Rotate the tuning dial to select the desired direction.
• “DUP–” or “DUP+” is selectable.
t Push [FM] to exit from the FM set mode.
NOTE: All repeater ranges for available bands must
be programmed at the same time. Otherwise, the
previously programmed ranges will be lost.
◊ Frequency range and shift direction
• U.S.A. version
FREQUENCY RANGE
SHIFT DIRECTION
1145.2000–1145.4999 MHz
1146.6100–1146.9999 MHz
“DUP–” appears
1147.0000–1147.3999 MHz
“DUP+” appears
1442.0000–1444.9999 MHz
“DUP+” appears
1447.0000–1449.9999 MHz
“DUP–” appears
1282.0000–1295.9999 MHz
“DUP–” appears
• Korea version
FREQUENCY RANGE
SHIFT DIRECTION
1439.0000–1440.0000 MHz
“DUP–” appears
1290.0000–1293.0000 MHz
“DUP–” appears
◊ Manual repeater setting
(non-European versions)
q Set the desired frequency.
• Push [M/S•BAND] to select the desired band if required.
• Push [FM] to select FM mode if required.
w Push [SPLIT•DUP] for 1 sec. to select the duplex
operation and the shift direction.
• “DUP–” or “DUP+” indicator appears, depending on the
selection.
• Set the offset frequency in the FM set mode, if required.
e Push [TONE] to activate the tone encoder.
• “T” indicator appears.
• Set the tone frequency in the FM set mode, if required.
r Push [SPLIT•DUP] for 1 sec. and [TONE] to cancel
the duplex operation and deactivate the tone encoder.
• “DUP–” or “DUP+” and “T” indicators disappear.
34
RECEIVE AND TRANSMIT
◊ Using the one-touch repeater function
By using the pre-programmed offset frequency, shift direction and tone frequency, quick and simple repeater
operation can be made.
t Push [PTT] to access the repeater.
Shifts 5 MHz when transmitted.
FM
The default values for offset frequency and direction
are as follows:
144 MHz band
: –0.600 MHz
430(440) MHz band : –5.000 MHz (other than below)
–7.200 MHz (European version)
–1.600 MHz (Swedish version)
1200 MHz band
: –20.000 MHz (optional)
Tone frequency
: 88.5 Hz
q Push [M/S•BAND] to select the desired frequency
band.
w Push [FM] to select FM mode.
e Rotate the tuning dial to input the desired repeater
frequency.
DUP
VFO A
S 1
20
40
60dB
y Release [PTT] to receive a signal from the repeater.
u Push [FM] to cancel the duplex operation mode.
• “DUP–” and “T” indicators disappear.
FM
VFO A
• Direct frequency input using the keypad can be used for
frequency setting.
FM
VFO A
r Push [FM] to select the repeater operation mode.
• “DUP–” and “T” indicators appear.
FM
DUP
VFO A
◊ Setting tone frequency
◊ Setting offset frequency
(non-European versions)
q Push [M/S•BAND] to select the desired frequency
band.
w Push [SET] then [FM] to enter the FM set mode.
e Push [DN ▼] or [▲ UP] to select the tone frequency
item.
q Push [M/S•BAND] or [SUB] to select the desired
frequency band.
w Push [SET] then [FM] to enter the FM set mode.
e Push [DN ▼] or [▲ UP] to select the offset frequency
item.
• “ton,” selected band (144/430(440)/1200) and “T” indicator appear.
r Rotate the tuning dial to set the desired tone frequency.
t Push [FM] to exit from the FM set mode.
• “duP” and selected band (144/430(440)/1200) appear.
r Rotate the tuning dial to set the desired tone frequency.
t Push [FM] to exit from the FM set mode.
35
5
RECEIVE AND TRANSMIT
■ SSB mode operation
q Push [M/S•BAND] to select the desired frequency
band.
w Push [SSB/CW] to select USB or LSB mode.
[TRANSMIT]
[M/S•BAND] [SSB/CW]
[MIC GAIN]
Tuning dial
• Push [SSB/CW] for 1 sec. to switch between USB and
LSB when either the USB or LSB has been selected.
e Rotate the tuning dial to set the desired frequency.
r Push [PTT] to transmit and speak into the microphone at a normal voice level.
t Rotate [MIC GAIN] so that the MAIN band indicator
periodically lights red brightly.
• The brightness increases when the ALC is activated.
y Release [PTT] to receive.
ALC indicator
While transmitting, the MAIN/SUB band indicator
shows the ALC condition. Brightness increases
more than usual when the ALC function is activated.
VOX function
The VOX (Voice-operated Transmission) function is
available for switching between transmit and receive
with your voice. See p. 33 for details.
■ Speech compressor
The speech compressor increases average RF output
power, improving signal strength and readability in
SSB. The IC-910H has a built-in, low-distortion speech
compressor circuit.
➥ Push [COMP] to turn the speech compressor ON
and OFF.
• Either USB or LSB should be selected.
• “COMP” indicator appears when the speech compressor
is activated.
MAIN band LED
[COMP] lights in red while transmitting.
[MIC GAIN]
◊ Compression level setting
q Select USB or LSB mode.
w Preset the transceiver as follows:
[COMP] function
: OFF
[RF POWER] control : Max. counterclockwise
e Transmit at your normal voice level.
r Adjust the [MIC GAIN] control so that the MAIN
band indicator periodically lights red brightly
whether or not you speak softly or loudly.
t Push [COMP] to turn the speech compressor ON.
y Push [SET] then [COMP] to enter the COMP set
mode.
u Rotate the tuning dial to adjust the compression
level to the point where the maximum value and the
MAIN band indicator brightness does not increase,
whether or not you speak softly or loudly.
• When the MAIN band indicator continuously lights red
with increased brightness, your transmitted voice may be
distorted.
• It’s a good idea to adjust the compressor level by monitoring with an other transceiver or receiver, if you have
one, or with an other station.
i Push [COMP] to exit the COMP set mode.
36
RECEIVE AND TRANSMIT
■ Split frequency operation
Split frequency operation allows you to transmit and receive on two different frequencies in the same frequency band. Split frequency operation uses 2 frequencies, one in VFO A and the other in VFO B.
y Push [SPLIT].
• “SPLIT” indicator appears.
• Now you can receive on the displayed VFO and transmit
on the undisplayed VFO.
• To monitor the transmit frequency, push [CHECK 7].
q Set a receive frequency in VFO mode.
USB
• Either VFO A or VFO B can be used.
SPLIT
VFO B
w Push [A=B 2] for 1 sec.
• The undisplayed VFO contents are cleared and equalized to the displayed frequency.
e To change the receive frequency, rotate the tuning
dial.
USB
VFO A
u Push [SPLIT] to cancel the split frequency operation.
• “SPLIT” indicator disappears.
[TRANSMIT]
[SPLIT] [A=B 2]
[A/B 3]
r To replace the transmit and receive frequencies,
push [A/B 3].
USB
VFO B
t To change the transmit frequency, rotate the tuning
dial while pushing [CHECK 7].
Cross mode communication can be performed using
the split function. (e.g. USB and CW)
■ Full duplex operation
The MAIN and SUB bands are activated independently, therefore, simultaneous transmission and reception in different frequency bands are possible.
• SUB band mute function
The SUB band mute function mutes receiving audio
from the SUB band while transmitting.
q Push [M/S•BAND] to select the desired frequency
band for transmission.
q Push [SET] then [TRANSMIT] to enter the TRANSMIT set mode.
w Push [DN ▼] or [▲ UP] to select the SUB band
mute item.
• Push [V/M 1] to select VFO or memory mode, if desired.
• Push [SSB/CW] or [FM] to select the desired operating
mode.
w Rotate the tuning dial to set the desired frequency.
• Direct frequency input from the keypad is also available.
e Push [SUB] to enable the SUB band access.
• Push [M/S•BAND] for 1 sec. to select the desired frequency band, if desired. (when the optional UX-910 is installed.)
• Push [V/M 1] to select VFO or memory mode, if desired.
• Push [SSB/CW] or [FM] to select the desired operating
mode.
• “Audio” is displayed.
e Rotate the tuning dial to turn the SUB band mute
function ON and OFF.
• Push [M-CL 5] for 1 sec. to return to the default setting.
r Push [TRANSMIT] to exit from the TRANSMIT set
mode.
r Push [PTT] to transmit.
37
5
RECEIVE AND TRANSMIT
■ Connections for CW
Before operating in CW, select the paddle type using
the SSB/CW set mode.
e Push [DN ▼] or [▲ UP] to select the paddle type
item.
q Push [SSB/CW] to select CW mode.
r Rotate the tuning dial to select the paddle type.
• “PAddLE” is displayed.
• “CW” indicator appears.
• Push [M-CL 5] for 1 sec. to return to the default setting.
w Push [SET] then [SSB/CW] to enter the SSB/CW
set mode.
t Push [SSB/CW] to exit the SSB/CW set mode.
CW
[KEY] jack
CW paddle with normal polarity (default)
Paddle
CW paddle with reverse polarity
CW paddle use as bug-key
Straight key
Electronic keyer OFF (straight key)
NOTE: A stereo plug must be used even when a
straight key is used. See page 12 or 15.
[MIC] connector
Microphone
Substitute paddle function
(microphone [UP]/[DN])
NOTE: [UP]/[DN] keying does not function while
pushing [PTT] on the microphone. Push [TRANSMIT] on the front panel or use the semi break-in
function in this case.
■ CW mode operation
q Connect a paddle or straight key as above.
w Push [M/S•BAND] to select the desired frequency
band.
e Push [SSB/CW] to select CW mode.
• Push [SSB/CW] for 1 sec. to select CW narrow mode
after the CW mode selection when the optional CW narrow filter, FL-132 (for MAIN band) or FL-133 (for SUB
band), is installed.
r Rotate the tuning dial to set the operating frequency.
t Push [TRANSMIT] to set the transceiver to transmit
mode.
• The MAIN band indicator lights red.
38
y Operate the paddle or key to transmit the CW signal.
u Push [TRANSMIT] to return to receive mode.
[TRANSMIT] [M/S•BAND] [SSB/CW]
Tuning dial
RECEIVE AND TRANSMIT
◊ Setting keying speed
◊ Setting side tone
q Push [SET] then [SSB/CW] to enter the SSB/CW
set mode.
w Push [DN ▼] or [▲ UP] to select the keying speed
item.
q Push [SET] then [SSB/CW] to enter the SSB/CW
set mode.
w Push [DN ▼] or [▲ UP] to select the side tone item.
• “SPEEd” is displayed.
e Rotate the tuning dial to adjust the keying speed to
the desired speed.
• Keying speed can be selected from 6–60 wpm.
• Push [M-CL 5] for 1 sec. to return to the default value.
• “SidE-t” is displayed.
e Rotate the tuning dial to adjust the side tone level
to the desired level.
• Push [M-CL 5] for 1 sec. to return to the default value.
r Push [SSB/CW] to exit the SSB/CW set mode.
r Push [SSB/CW] to exit the SSB/CW set mode.
◊ Setting semi break-in function
q Push [SET] then [SSB/CW] to enter the SSB/CW
set mode.
w Push [DN ▼] or [▲ UP] to select the semi break-in
item.
• “br-In” is displayed.
e Rotate the tuning dial to turn the semi break-in function ON and OFF.
• Push [M-CL 5] for 1 sec. to return to the default setting.
r Push [DN ▼] or [▲ UP] to select the delay time item.
• “dELAy” is displayed.
t Rotate the tuning dial to set the delay time to the
desired time period.
• Delay time can be selected from 2.0–13.0 sec. in
0.1 sec. steps.
• Push [M-CL 5] for 1 sec. to return to the default value.
y Push [SSB/CW] to exit the SSB/CW set mode.
◊ Setting keying weight
q Push [SET] then [SSB/CW] to enter the SSB/CW
set mode.
w Push [DN ▼] or [▲ UP] to select the keying weight
item.
• “rAtio” is displayed.
e Rotate the tuning dial to adjust the keying weight
ratio to the desired level.
• Keying weight ratio can be selected from 1:1:2.8 to
1:1:4.5.
• Push [M-CL 5] for 1 sec. to return to the default value.
r Push [SSB/CW] to exit the SSB/CW set mode.
KEYING WEIGHT EXAMPLE: Morse code “K”
◊ Setting CW pitch
q Push [SET] then [SSB/CW] to enter the SSB/CW
set mode.
w Push [DN ▼] or [▲ UP] to select the CW pitch item.
• “Pitch” is displayed.
e Rotate the tuning dial to adjust the CW pitch to the
desired pitch.
• CW pitch can be adjusted within 300–900 Hz range.
• Push [M-CL 5] for 1 sec. to return to the default value.
r Push [SSB/CW] to exit the SSB/CW set mode.
DASH
DOT
(Fixed*) DASH
Weight setting:
1:1:3 (default)
Weight setting:
Adjusted
Adjustable range
SPACE (Fixed*)
*SPACE and DOT length can be adjusted with the
keying speed only.
39
6
MEMORY OPERATION
■ Memory channels
The IC-910H has 106 memory channels (99 for regular, 6 scan edges and 1 call) and they are equipped for
each frequency band for storing the most often used
frequencies and operating mode, as well as tone frequency, offset frequency, etc.
Memory
Channel
Description
1–99
Regular memory channels. Programs operating frequency, mode, subaudible tone
activity with frequency and split/duplex
conditions.
1A/1b–3A/3b
Scan edge channels. Programs edge frequencies for programmed scan.
Call channel recalls a specified frequency on the instant. Programs operating frequency, mode, etc., and is available for each band, independently.
■ Operation on a memory
channel
Frequency and mode, etc., can be changed in a memory channel. However, they will be cleared if [MW 4] is
not pushed.
◊ Memory channel selection
[DN √] [UP ∫]
q Push [V/M 1] to select memory channel mode.
• “MEMO” indicator appears.
w Push [DN ▼] or [▲ UP] to select the desired memory channel.
FM
VFO A
• Memory channel changes continuously while holding
[DN ▼] or [▲ UP].
• The tuning dial rotation while pushing [F-INP ENT] also
selects memory channel.
e Push [V/M 1] to return to VFO mode.
Select memory mode
FM
MEMO
◊ During VFO mode operation
By pushing [DN ▼] or [▲ UP] during VFO mode operation, memory channel is also selectable. However, the
frequency readout does not change in this case, only
the memory channel number changes.
Select memory
channel
USB
MEMO
40
MEMORY OPERATION
■ Programming in VFO mode
FM
VFO A
Memory channel programming can be performed either in VFO mode or in memory mode.
Set desired frequency
and mode.
q Set the desired operating frequency and mode in
VFO mode.
• Push [V/M 1] to select VFO mode, if required.
• Tone frequency, offset frequency, etc., can also be programmed.
• Input the frequency from the keypad
Push [F-INP ENT] ⇒ [1] ⇒ [4] ⇒ [4] ⇒ [.] ⇒ [2] ⇒ [6]
⇒ [8] ⇒ [F-INP ENT]
USB
Select desired memory
channel.
w Push [DN ▼] or [▲ UP] to select the desired memory channel to be programmed.
e Push [MW 4] for 1 sec. to program the displayed frequency and operating mode into the memory channel.
USB
USB
■ Programming in memory
mode
MEMO
Select desired memory
channel.
FM
e Set the desired operating frequency and mode in
the memory mode.
r Push [MW 4] for 1 sec. to program the displayed frequency and operating mode into the memory channel.
VFO A
USB
q Push [V/M 1] to select memory mode.
w Push [DN ▼] or [▲ UP] to select the desired memory channel to be programmed.
• Tone frequency, offset frequency, etc., can also be programmed.
• Set the desired operating frequency using with the keypad when programming into blank channels. The tuning
dial rotation for frequency setting cannot be performed
when a blank channel is selected.
• Input the frequency from the keypad
Push [F-INP ENT] ⇒ [1] ⇒ [4] ⇒ [4] ⇒ [.] ⇒ [1] ⇒ [6]
⇒ [4] ⇒ [F-INP ENT]
VFO A
Beep tones sound.
To check the programmed contents, push [V/M 1] to
select memory mode.
• The tuning dial rotation while pushing [F-INP ENT] also
selects memory channel.
VFO A
MEMO
Set desired frequency
and mode.
USB
MEMO
Beep tones sound.
USB
MEMO
41
6
MEMORY OPERATION
■ Blank channels
Memory channels 6–99 are blank channels by factory
default. They have no contents programmed.
When a blank channel is selected, the “BLANK” indicator appears and the frequency band is displayed
2 sec. after the selection.
◊ Programming a blank channel
q Push [V/M 1] to select VFO mode.
w Set the desired operating frequency, mode, etc.
e Push [MW 4] for 1 sec. to program the memory
channel.
• “BLANK” indicator disappears.
MEMO
B L AN
ANK
Operating band appears
after 2 sec.
MEMO
B L AN
A NK
“--430-” appears while in 430 MHz band.
“-1200-” appears while in 1200 MHz band.
■ Frequency transferring
The frequency and operating mode in a memory channel can be transferred to the VFO.
Frequency transferring can be performed in either VFO
mode or memory mode.
◊ Transferring in memory mode
This is useful for transferring frequency and operating
mode while operating in memory mode.
When you have changed the frequency or operating
mode in the selected memory channel:
• Displayed frequency and mode are transferred.
• Programmed frequency and mode in the memory
channel are not transferred, and they remain in the
memory channel.
◊ Transferring in VFO mode
This is useful for transferring programmed contents to
VFO.
q Push [V/M 1] to select VFO mode.
w Push [DN ▼] or [▲ UP] to select the memory channel to be transferred.
• “BLANK” appears if the selected memory channel is a
blank channel. In this case transferring is impossible.
e Push [M≈V 6] for 1 sec. to transfer the frequency
and operating mode.
• Transferred frequency and operating mode appear on
the frequency readout.
USB
MEMO
Beep tone sounds.
q Push [DN ▼] or [▲ UP] to select the memory channel to be transferred in memory mode.
• And, set the frequency or operating mode if required.
USB
MEMO
w Push [M≈V 6] for 1 sec. to transfer the frequency
and operating mode.
• Displayed frequency and operating mode are transferred
to the VFO.
Select VFO mode.
e Push [V/M 1] to return to VFO mode.
USB
42
VFO A
MEMORY OPERATION
■ Memory clearing
USB
Any unnecessary memory channels can be cleared.
The cleared memory channels become blank channels.
MEMO
q Push [V/M 1] to select memory mode.
w Push [DN ▼] or [▲ UP] to select the desired memory channel to be cleared.
e Push [M-CL 5] for 1 sec. to clear the contents.
Beep tone sounds.
MEMO
• The programmed frequency and operating mode disappear.
• “BLANK” indicator appears.
B L AN K
Operating band appears
after 2 sec.
r To clear other memory channels, repeat steps w
and e.
MEMO
B L AN K
■ Call channel
The call channel is a one-touch accessible channel for
recalling your most-often-used frequency. The IC-910H
has one call channel for each frequency band.
USB
VFO A
◊ Call up a call channel
B L AN
ANK
q Push [M/S•BAND] or [SUB] to select the desired
frequency band.
w Push [CALL] to select the call channel.
e Push [CALL] or [V/M 1] to return to previous display.
FM
◊ Call channel programming
q Push [M/S•BAND] or [SUB] to select the desired
frequency band.
w Push [CALL] to select the call channel.
e Enter the desired frequency using the keypad.
e.g.; When programming 145.8200 MHz.
Push [F-INP ENT] ⇒ [1] ⇒ [4] ⇒ [5] ⇒ [.] ⇒ [8] ⇒
[2] ⇒ [F-INP ENT]
• Select operating mode if required.
r Push [MW 4] for 1 sec. to program the call channel.
◊ Transferring call channel contents
q Push [M/S•BAND] or [SUB] to select the desired
frequency band.
w Push [CALL] to select the call channel.
e Push [M≈V 6] for 1 sec. to transfer the call channel
contents.
43
6
MEMORY OPERATION
■ Memo pads
Use the transceiver’s memo pads instead of relying on
hastily scribbled notes that are easily misplaced.
The IC-910H has a memo pad function for each frequency band to store frequency and operating mode
for easy write and recall. The memo pads are separate
from memory channels.
◊ Writing frequencies and operating
modes into memo pads
The default number of memo pads is 5, however, this
can be increased to 10 in the memo pad set mode
(p. 64) if desired.
Memo pads are convenient when you want to memorize a frequency and operating mode temporarily, such
as when you find a DX station in a pile-up, or when a
desired station is busy for a long time and you want to
temporarily search for other stations.
VFO or memory mode
FM
You can simply store the accessed readout frequency
and operating mode by pushing [MPW 8].
When you write a 6th (or 11th) frequency and operating mode, the oldest written frequency and operating
mode are automatically erased to make room for the
new settings.
Each memo pad must have its own unique combination of frequency and operating mode; memo
pads having identical settings cannot be written.
Memo pad contents
VFO A
USB
FM
USB
When [MPW 8] is pushed, “FM 145.9200 MHz”
is programmed and the oldest memo pad is
cleared.
FM
CW
Cleared
◊ Calling up a frequency from a memo pad
You can simply call up the desired frequency and operating mode of a memo pad by pushing [MPR 9].
• Both VFO and memory modes can be used.
• The frequency and operating mode are called up, starting
from the most recently written.
VFO or memory mode
FM
Memo pad contents
VFO A
USB
FM
USB
FM
CW
44
7
SCANS
■ Scan types
Scanning searches for signals automatically and
makes it easier to locate new stations for contact or listening purposes. The IC-910H has several scan types;
programmed scan, memory scan and mode select
scan.
The scanning operation can be performed independently for MAIN and SUB band. And to search a subaudible tone frequency for a repeater frequency, a tone
scan is also available.
MEMORY SCAN
Repeatedly scans all programmed memory channels.
This scan operates in memory mode.
M-CH 2
M-CH 3
PROGRAMMED SCAN
Repeatedly scans between two scan edge frequencies
(scan edge memory channels 1A/2A/3A and 1b/2b/3b).
This scan operates in VFO mode.
Scan edge
(1A/2A/3A)
Scan edge
(1b/2b/3b)
Scan
Jump
Scan starts from the displayed frequency or the lower
scan edge frequency.
MODE SELECT SCAN
Repeatedly scans all selected mode memory channels.
This scan operates in memory mode.
M-CH 4
USB
FM
CW
Blank
M-CH 1
M-CH 5
M-CH 99
M-CH 7
M-CH 6
FM
FM
FM
FM
USB
Call channels and scan edge channels are not scanned.
■ Preparation
• Squelch condition
• Setting scan resume condition
Set the [RF/SQL] control as for regular operation.
q Push [SET] then [SCAN .] to enter the scan set
mode.
w Push [DN ▼] or [▲ UP] to select the scan resume
item.
• When receiving a signal
• Scan pauses for 10 sec. when receiving a signal, then
resumes.
• When a signal disappears while scan is paused, scan
resumes approx. 3 sec. later.
• “SC-rES” is displayed.
e Rotate the tuning dial to select scan resume condition from ON and OFF.
• “ON”: scan resumes, “oFF”: scan cancels
• Push [M-CL-5] for 1 sec. to return to the default setting.
• Scan resume ON/OFF
r Push [SCAN .] to exit from the scan set mode.
You can select the scan to resume or cancel when receiving a signal, in the scan set mode. Scan resume
ON/OFF must be set before operating a scan. See details described at right for ON/OFF setting.
• Setting scan speed
• Scan start/stop operation
Push [SCAN .] to start and cancel scanning.
• Scan speed
Scan speed can be selected from 2 levels, high (default) or low, in the scan set mode. See details described at right.
q Push [SET] then [SCAN .] to enter the scan set
mode.
w Push [DN ▼] or [▲ UP] to select the scan speed
item.
• “SC-SPd” is displayed.
e Rotate the tuning dial to select scan resume condition from HI and Lo.
• Push [M-CL-5] for 1 sec. to return to the default setting.
r Push [SCAN .] to exit from the scan set mode.
45
7
SCANS
■ Programmed scan operation
Scans specified frequency range, programmed in the
memory channel 1A/1b, 2A/2b and 3A/3b. Before starting the programmed scan, scan edges should be programmed in these channels.
◊ Selecting scanning range
q Push [M/S•BAND] or [SUB] to select the desired
frequency band to be scanned.
w Push [SET] then [SCAN .] to enter the scan set
mode.
e Push [DN ▼] or [▲ UP] to select the programmed
scan item.
• “P-SCAn” is displayed.
r Rotate the tuning dial to select the desired scanning
range from 1A-1b, 2A-2b and 3A-3b.
• Push [M-CL 5] for 1 sec. to return to the default setting.
t Push [SCAN .] to exit from the scan set mode.
wSelect
mode.
qSelect VFO
mode.
◊ Starting the programmed scan
q Push [M/S•BAND] or [SUB] to select the desired
frequency band to be scanned.
w Push [V/M 1] to select VFO mode.
e Select the desired operating mode.
• The operating mode can also be changed while scanning.
r Push [SCAN .] to start the programmed scan.
• “SCAN” indicator flashes.
• The tuning step setting is used for the scanning step.
• 1 kHz or 1 MHz tuning step can also be used as the
scanning step.
t Push [SCAN .] to cancel the scan.
If the same frequency is programmed into the scan
edge memory channel 1A and 1b, 2A and 2b or 3A
and 3b, programmed scan does not start.
FM
S 1
VFO A
20
40
60dB
SCAN
Flashes while scanning
eStart.
rStop.
■ Memory scan operation
Scans programmed memory channels only. Blank
channels and programmed scan edge channels
(1A/1b, 2A/2b and 3A/3b) are not scanned.
qSelect memory
mode.
q Push [M/S•BAND] or [SUB] to select the desired
frequency band to be scanned.
w Push [V/M 1] to select memory mode.
e Push [SCAN .] to start the memory scan.
• “SCAN” indicator flashes.
• Pushing [SPCH•LOCK] for 1 sec. during scan starts
mode select scan and “LOCK” indicator appears. (p. 47)
wStart.
eStop.
r Push [SCAN .] to cancel the scan.
FM USB LSB CW N
MEMO
T- SQL ATT P.AMP AFCNB FAGC
S 1
20
40
60dB
SCAN
Flashes while scanning
46
SCANS
■ Mode select scan
Scans the memory channels, desired operating mode
is programmed, only.
wSelect
mode.
qSelect memory
mode.
q Push [M/S•BAND] or [SUB] to select the desired
frequency band to be scanned.
w Push [V/M 1] to select memory mode.
e Push [SSB/CW] or [FM] to select the desired operating mode to be scanned.
• The operating mode can also be changed during scan.
r Push [SPCH•LOCK] for 1 sec.
LOCK
• “LOCK” indicator appears.
appears. rStart.
tStop.
t Push [SCAN .] to start the mode select scan.
• “SCAN” indicator flashes.
y Push [SCAN .] to cancel the scan.
USB
MEMO
S 1
20
60dB
40
SCAN
FM
S 1
VFO A
VF
40
20
60dB
LOCK
Flashes while scanning
■ Tone scan
The transceiver can detect a subaudible tone frequency in a received signal. By monitoring a signal that
is being transmitted on a repeater input frequency, you
can determine the tone frequency required to access
the repeater.
qSelect FM mode.
q Set the desired frequency or memory channel to be
checked for a tone frequency.
w Push [FM] to select FM mode.
e Push [TONE] or [CALL•T-SQL] for 1 sec. to activate
the subaudible tone.
• “T” or “T-SQL” indicator appears.
r Push [SCAN .] for 1 sec. to start the tone scan.
• “SCAN” indicator flashes while scanning.
• Scan stops when a subaudible tone is detected.
• Scan becomes slower or quicker, respectively when the
noise squelch is open or closed.
t Push [SCAN .] for 1 sec. to cancel the scan.
wStart.
eStop.
FM
VFO A
T- SQL
S 1
20
40
60dB
SCAN
Flashes while scanning
NOTE: The tone scan automatically changes tone
frequency setting to the detected tone frequency.
47
8
SATELLITE OPERATION
■ Satellite communications outline
Both satellite mode B (435 MHz uplink, 145 MHz
downlink) and mode J (145 MHz uplink, 435 MHz
downlink) can be operated from the IC-910H, and
mode L can be operated when the optional UX-910
1200 MHz BAND UNIT is installed.
Orbit information
Orbit information describes satellite location, reaching angles, etc. This information may be available in
ham magazines or organization issues, such as from
ARRL, RSGB handbook, etc.
Satellite communications is possible only when a satellite is in view and its transponder is activated.
Appropriate satellite tracking software is also convenient.
FUJI 3 (FO-29)
Uplink
Downlink
145 MHz
band
145 MHz band
435 MHz
band
435 MHz
band
• Mode B operating diagram
[Example]: FUJI 3 (FO-29), Mode B
• Uplink frequency:
145.9000–146.0000MHz
• Downlink frequency:
435.8000–435.9000 MHz
• Tracking direction:
Reverse
• CW beacon frequency:
435.7950 MHz
■ Satellite notes
1. NEVER set the output power too high. Too much
power will shorten the satellite’s life.
Set your transmit power so that your downlink signal
level is lower than the beacon’s signal level.
3. Preamplifiers may be necessary to receive satellite
signals. Optional AG-25, AG-35 and AG-1200 (for
UX-910) are available to use with the IC-910H.
(p. 16)
2. Confirm a satellite’s operating mode in advance
through documentation (magazines, etc.) or via appropriate satellite tracking software. In the wrong
mode, you cannot use the satellite even if you receive its beacon signal.
4. When you use a reverse tracking satellite in SSB
mode, use the LSB for the uplink frequency and
USB for the downlink frequency.
■ Entering into the satellite
mode
e Push [SATELLITE] for 1 sec. to transfer the frequencies, set in steps q and w, into the satellite
VFO.
Operating frequencies in satellite mode can be set
both before and after entering into the satellite mode.
Normal and reverse tracking are available.
◊ Transferring the VFO frequency to the
satellite VFO
• When using a normal tracking satellite in SSB mode,
use USB for both the uplink and downlink frequencies.
• Satellite mode is automatically selected after transferring.
• “SATL” indicator with either “NOR” or “REV” indicator appears.
• VFO and memory mode indications are displayed in the
SUB band (lower area) during satellite mode.
q Set the downlink frequency (receive) in the MAIN
band.
w Set the uplink frequency (transmit) in the SUB band.
[SATELLITE] for 1 sec.
48
SATELLITE OPERATION
■ Setting the satellite VFO
q Push [SATELLITE] to enter the satellite mode.
• “SATL” indicator with either “NOR” or “REV” indicator appears.
w Push [V/M 1] to toggle satellite VFO and memory
mode.
r Push [SWP 0 Í] to enable the uplink frequency
tuning.
• Downlink frequency indication disappears.
• Push [SWP 0 Í] again after the tuning.
• VFO or memory mode indicator is displayed in the SUB
band (lower area).
USB
e Push [SCAN . Â] to enable the downlink frequency
tuning.
• Uplink frequency indication disappears.
• Rotate the tuning dial to set the downlink frequency and
push [SSB/CW] to select the operating mode.
• Push [SCAN . Â] again after the tuning.
S 1
20
40
60dB
40
LSB
MEMO
RE V
S 1
20
SATL
USB
S 1
40
20
60dB
NOTE: To select the operating mode for the uplink,
push [SUB] to enable the SUB band access.
60dB
LSB
MEMO
SATL
RE V
S 1
20
40
60dB
■ Tracking selection
• Push [F-INP ENT NOR ↔ REV ] for 1 sec. to switch between normal and reverse tracking.
◊ Normal tracking
◊ Reverse tracking
The downlink frequency follows the tuning dial rotation,
however, the uplink frequency changes in the reverse
direction to the tuning dial rotation in the same step.
Both downlink and uplink frequencies increase or decrease in the same step simultaneously by tuning dial
rotation.
USB
[F-INP ENT]
S 1
20
40
60dB
LSB
NOR
MEMO
SATL
RE V
S 1
20
40
60dB
[SATELLITE]
Satellite mode indication
Varies simultaneously
49
8
SATELLITE OPERATION
■ Preparation
u Perform a loop test.
q Decide on a usable satellite.
w Confirm the approximate location of the satellite and
operating mode (e.g. “B,” “J,” etc.) through documentation (magazine, etc.) or via appropriate satellite tracking software.
e Set the antenna direction for the desired satellite.
r Select satellite mode on the transceiver.
• Push [SATELLITE].
• Push [F-INP ENT NOR ↔ REV ] for 1 sec. to select tracking mode if desired.
• Set the downlink frequency (MAIN band) to a vacant frequency within the satellite’s coverage.
• Push [SWP 0 Í] then, set the uplink frequency (SUB
band) while transmitting a single tone such as a whistle
to find your downlink signal and monitor your own signal
correctly. Push [SWP 0 Í] after setting.
USB
S 1
20
t Select operating mode.
40
60dB
LSB
Satellite
Downlink
(MAIN band)
Uplink
(SUB band)
Reverse tracking type
USB (or CW)
LSB (or CW)
Normal tracking type
USB (or CW)
USB (or CW)
Downlink (receive) frequency
USB
MEMO
SATL
RE V
S 1
20
40
60dB
NOTE: To avoid excessive power, set the output
power so that the downlink signal strength is lower
than the beacon’s strength.
USB
S 1
20
60dB
40
LSB
NOR
MEMO
SATL
S 1
20
RE V
40
60dB
LSB
S 1
40
20
60dB
MEMO
SATL
RE V
Satellite mode indication
Uplink (transmit) frequency
y Set the downlink frequency (MAIN band) to the beacon frequency.
• Refer to a ham magazine or book for detailed information.
• Adjust the antenna direction so that the S-meter shows
to its strongest level.
• The S-meter level should be noted for transmit power
adjustment during a loop test.
S 1
20
40
60dB
i Set the desired frequency to begin your satellite
communications.
• Both the downlink and uplink frequencies are changed
simultaneously.
o When your downlink audio drifts (Doppler effect),
push [SWP 0 Í] then rotate the tuning dial to adjust the uplink frequency (SUB band) only.
Push [SWP 0 Í] again after setting.
• When a particular station’s audio is off frequency, use
the RIT function (push [RIT]).
USB
!0 To exit the satellite operation, push [SATELLITE].
S 1
20
40
60dB
USB
MEMO
SATL
CONVENIENT: As the transceiver has 10 satellite
memory channels, once set, desired satellite frequencies can be recalled instantly.
RE V
S 1
50
20
40
60dB
NOTE: As the downlink (MAIN band) signal is applied to the SUB band unit in-circuitry in satellite
mode, an optional FL-133 CW NARROW FILTER is necessary to operate CW-N mode.
SATELLITE OPERATION
■ Satellite operation
When your own signal can be received with a loop test,
satellite communication can be performed.
q Rotate the tuning dial to re-tune the uplink frequency after pushing [SWP 0 Í], when shifting a
frequency with the Doppler effect.
• The downlink frequency readout (MAIN band) disappears.
w Rotate the tuning dial to re-tune the downlink frequency after pushing [SCAN . Â], when the operating station’s signal frequency is shifted.
• RIT function can also be used for downlink frequency
tuning within ±1 kHz range.
■ Satellite memory
The IC-910H has 10 satellite memory channels to
memorize both uplink and downlink frequencies and
operating modes, etc.
◊ Satellite memory selection
q Push [SATELLITE] to enter the satellite mode.
w Push [V/M 1] to select satellite memory mode.
• “MEMO” indicator and memory channel number are displayed beside the uplink frequency (SUB band) indication.
• Push [V/M 1] again to select satellite VFO.
e Push [DN ▼] or [▲ UP] to select the desired satellite mode memory channel.
• The channels 00–09 are selectable.
• By pushing and holding either switch, the satellite memory channel changes continuously.
q Select the desired satellite memory channel.
• Push [SATELLITE] to enter the satellite mode.
• Push [V/M 1] to select satellite VFO mode.
• Push [DN ▼] or [▲ UP] to select the desired satellite
mode memory channel.
w Set the desired downlink frequency to the MAIN
band and uplink frequency to the SUB band, as well
as operating mode.
• Push [SCAN . Â] for downlink tuning, push [SWP 0 Í]
for uplink frequency tuning.
• Push [SUB] before the operating mode selection when
selecting operating mode for the uplink.
e Push [MW 4] for 1 sec. to program the set contents
to the satellite memory channel.
• 3 beep tones sound.
NOTE: Tracking selection, normal or reverse, is not
programmed in the satellite memory channels.
USB
S 1
◊ Satellite memory programming
20
40
60dB
USB
LSB
NOR
MEMO
SATL
S 1
S 1
20
40
20
40
60dB
60dB
LSB
MEMO
SATL
Satellite memory
indication
RE V
S 1
20
40
60dB
Select the desired
satellite memory
51
9
DATA COMMUNICATION
■ Functions for AFSK
The IC-910H does not have an FSK mode for RTTY,
AMTOR, PACKET, etc., however, you can operate
these using AFSK in SSB or FM mode.
The transceiver accepts data speed of up to 9600 bps.
When using 9600 bps, set the transceiver to the 9600
bps data mode using the general set mode. (p. 57)
When operating AFSK, connect external equipment to
the DATA (MAIN or SUB) or ACC socket on the rear
panel, or to the microphone connector on the front
panel as in the diagram below.
OPERATION NOTES FOR 9600 bps
• Set the transceiver to 9600 bps data mode.
- See p. 57.
• Set AFSK/GMSK output level of the terminal unit to
0.4 V p-p (0.2 V rms).
- When exceeding 0.5 V p-p (0.25 V rms), the transceiver’s modulation limiter stops modulation.
- At this time, the [RX/TX] indicator’s brightness fades.
• AF output from the transceiver is continuous and is
not cut by the squelch circuit.
■ Connections for AFSK
◊ Connections via [DATA] socket
Use FM mode for 9600 bps operation.
Use SSB or FM mode for 1200 bps operation.
•9600 bps connection
•1200 bps connection
TNC
Shielding cable
Shielding cable
TX AUDIO
GND
TX AUDIO
q DATA IN
e PTT
q DATA IN
GND
w GND
r DATA OUT
w GND
e PTT
y SQ*
y SQ*
RX AUDIO
RX AUDIO
t AF OUT
PTT
PTT
SQL*
[DATA] socket
(Rear panel view)
TNC
SQL*
[DATA] socket
(Rear panel view)
* Connect the SQL line when required.
* Connect the SQL line when required.
◊ Connections via [ACC(1)] socket or [MIC] connector
Use FM mode for 9600 bps operation.
Use SSB or FM mode for 1200 bps operation.
•Connection via [ACC(1)] connector
(Rear panel
view)
8 3
F*
AFSK output
TX AUDIO
GND
AF input
RX AUDIO
(1200 bps)
PTT
PTT
GND
GND
Squelch input
SQL*
F*
52
•Connection via [MIC] connector
(Front panel
view)
TNC
* Connect the SQL line when required.
DATA COMMUNICATION
■ Operating mode notes
■ Operating frequency notes
Use FM mode for 9600 bps operation.
Use SSB or FM mode for 1200 bps operation.
◊ Operating notes for RTTY and AMTOR
RTTY or AMTOR operating frequency in LSB mode
differs from the displayed frequency.
[Your operating freq.] = [Displayed freq.] – 2125 Hz
(when the frequencies of the RTTY demodulator in
your TNC or TU are — mark = 2125 Hz and space =
2295 Hz).
◊ Operating notes for PACKET
PACKET operating frequency in LSB mode differs from
the displayed frequency.
[Your operating freq.] = [Displayed freq.] – 2125 Hz
(when the frequencies of the PACKET demodulator in
your TNC are — 2125 Hz/2315 Hz).
◊ Frequency setting example for AFSK
- When operating RTTY at 144.090 MHz:
Set “LSB 144.092125 MHz” (if you use mark=2125 Hz
and space=2295 Hz).
- When operating PACKET at 144.110 MHz:
Set “LSB
144.112215 MHz” (if
you
use
2115 Hz/2315 Hz).
■ AFSK operation
Connect external equipment to either the [DATA]
(MAIN or SUB) or [ACC(1)] socket as described on the
previous page. Set the ACC socket using the general
set mode in advance when you operate via the ACC
socket. (See below.)
q Push [M/S•BAND] to select the desired frequency
band.
w Push [FM] or [SSB/CW] to select the desired operating mode.
• LSB is normally used.
• FM is used for PACKET.
e Adjust the audio output level with [AF] control.
• Use [RF/SQL] when required.
r Adjust the desired RF output power.
• When using the [MIC] connector for external equipment
connection, the [MIC GAIN] control should be adjusted.
t Select operating mode.
y Control the transceiver from the connected PC or
TNC (TU).
qSelect
band.
wSelect desired
mode.
IMPORTANT:
• Remove the microphone from the [MIC] connector
when operating below 1200 bps rate to protect
from noise coming from the microphone.
• During 9600 bps rate operation, noise signals from
the microphone may not effect PACKET signals.
However, PACKET signal transmission is interrupted when [PTT] is pushed.
• Remove the ACC plug, or turn the TNC power OFF
during phone operation (SSB or FM). The modulation input from the [ACC(1)] socket is always applied to the modulation circuit.
◊ Connections via front panel
When connecting a TNC or Scan converter, etc. to the
[MIC] connector, [MIC GAIN] and [AF] adjustments are
required. The [MIC] connector accepts up to 1200 bps.
Use SSB or FM mode for operation.
[MIC GAIN] and [AF] control adjustments are required.
eAdjust for max.
detected level.
53
9
DATA COMMUNICATION
◊ Adjusting the transmit signal output
from the TNC
When setting the data transmission speed to 9600
bps, the data signal coming from the TNC is applied
exclusively to the internal limiter circuitry to control the
transmission.
NEVER apply data levels from the TNC of over
0.6 V p-p, otherwise the transceiver automatically
cancels the transmission.
1. When using a level meter or synchroscope, adjust the TX audio output level (DATA IN level)
from the TNC as follows.
0.4 V p-p (0.2 V rms): recommended level
0.2–0.5 V p-p (0.1–0.25 V rms): acceptable level
2. When NOT using a measurement device.
q Connect the transceiver to a TNC.
w Enter a test mode (“CAL”, etc.) to the TNC, then
transmit some test data.
e When the transceiver fails to transmit the test
data or transmits sporadically (TX indicator does
not appear or flashes):
- Decrease the TNC output level until the transmit
indicator lights continuously.
When transmission is not successful even though
the TX indicator lights continuously:
- Increase the TNC output level.
■ Setting the ACC socket
When operating AFSK, set the specifications of the
ACC socket to fit your TNC or scan converter in advance.
q Push [SET] for 1 sec. to enter the set mode.
w Push [DN ▼] or [▲ UP] to select the 9600 bps data
mode setting item, then rotate the tuning dial to turn
the 9600 bps rate ON and OFF
Push [SWP 0] again after setting.
• “9600” is displayed.
• 9600 bps data rate is selected when ON, and a slower
data rate is selected when OFF is selected.
• Push [M-CL 5] for 1 sec to return to the default setting.
e Push [▲ UP] to select ACC socket pins 5 and 6 setting item, then rotate the tuning dial to select from
“nor” (normal) and “Sub” (sub).
• “ACC P5.6” is displayed.
• When “nor” (normal) is selected, the ACC socket (pins 5
and 6) outputs MAIN band signals. When “Sub” is selected, the ACC socket outputs SUB band signals.
• Push [M-CL 5] for 1 sec to return to the default setting.
54
NOTE: Select “nor” (normal) when operating data
mode in satellite mode.
r Push [▲ UP] to select the modulation signal input
level setting item, then rotate the tuning dial to select from “HI” and “Lo” (sub).
• “ACC.t-AF” is displayed.
• HI: 200 mV rms, Lo: 2 mV rms
• Push [M-CL 5] for 1 sec to return to the default setting.
• This setting is ignored when 9600 bps data mode (w) is
selected and 1.0 V p-p is set as a fixed value.
t Push [SET] to exit from the set mode.
SET MODE
10
■ Set mode description
Set mode is used for programming infrequently
changed values or conditions of functions. The
IC-910H has a regular set mode and additional 12 independent set modes for simple condition changing.
◊ Set mode operation
q Push [SET] for 1 sec. to enter the general set mode.
w Push [DN Z] or [UP Y] to select the desired item.
e Set the desired condition using the tuning dial.
SCAN
e Push [DN Z] or [UP Y] to select the desired item.
r Set the desired condition using the tuning dial.
• Push [M-CL 5] for 1 sec. to select a default condition or
value.
• Push [M-CL 5] for 1 sec. to select a default condition or
value.
r Push [SET] to exit the set mode.
SCAN
SCAN
◊ Independent set mode operation
q Push [SET].
FM
S 1
VFO A
20
40
t Push the applicable switch, pushed in step w, or
[SET] to exit the set mode.
60dB
SET
FM
VFO A
FM
S 1
20
40
VFO A
60dB
S 1
20
40
60dB
FM
w Push 1 of following switches/keys to enter the independent set mode.
[SPCH], [FM], [SSB/CW], [SCAN], [MPW], [COMP],
[VOX], [TRANSMIT], [NR], [RIT], [ATT], [SWP]
S 1
VFO A
20
40
60dB
•SET MODE FLOW CHART
Push [SET] for 1 sec.
General set mode appears.
Push [SET] momentarily.
Select set mode item.
Select condition.
Exit set mode.
Tuning dial
Push applicable
key or [SET] key.
Independent
Select set mode item.
set mode
appears.
Select condition.
Exit set mode.
applicable
applicable
Push applicable key
Tuning dial
Push applicable
key or [SET] key.
applicable keys
55
10
SET MODE
■ General set mode
Display backlight brightness
Adjust backlight brightness for the function display to
the desired level within 0 (dark) to 100 (bright) range.
Beep tone
Adjust key touch beep output level to the desired level
within 0 (no output) to 100 (max. output) range.
RF/SQL control assignment
Assign [RF/SQL] control function from rF/SqL, Auto
and SqL.
• rF/SqL : RF gain and squelch controls are combined
for SSB/CW mode. Acts as squelch control
for FM mode.
• Auto : Acts as either an RF gain or squelch control
depending on operating mode.
• SqL : Acts as squelch control for all modes. RF
gain is set to maximum level in this setting.
Peak hold function
Turn the S-meter peak hold function ON or OFF.
The peak level is indicated for approx. 0.5 sec. when
this function is activated.
56
10
SET MODE
Microphone UP/DN speed
Select continuous changing speed with microphone’s
[UP]/[DN] operation from high and low.
Tuning step selection
Below 1 kHz
HI
Lo
50 steps/sec. 25 steps/sec.
Above 1 kHz below 1 MHz 20 steps/sec. 10 steps/sec.
1 MHz or Memory Channel
5 steps/sec.
2.5 steps/sec.
9600 bps data transmission
Turn the 9600 bps data transmission capability ON
and OFF.
• on
: For 9600 bps data transmission.
• oFF : For the regular audio (or slower data) transmission only.
9600
Auto TS function
Turn the auto TS function ON and OFF.
This function temporarily changes tuning step when
rotating the tuning dial quickly.
The auto TS function automatically selects a 10 or
50 Hz tuning step, when 1 or 10 Hz tuning step is
used for regular operation, respectively.
Fine tuning indication
Turn the fine tuning indication (10 and 1 Hz digit indication) during the tuning dial rotation ON and OFF.
Headphone audio
Switch the audio output separation capability for the
headphones ON and OFF.
• on
: The MAIN and SUB band audio is separated in right (MAIN) and left (SUB) channels when using stereo headphones.
• oFF : The MAIN and SUB band audio is mixed.
ACC socket Pin 5 and Pin 6
Select the band for output signals from the ACC
socket pins 5 (AF) and 6 (SQL) from normal and sub.
• nor
: Outputs MAIN band’s signals.
• Sub : Outputs SUB band’s signals.
57
10
SET MODE
ACC socket Pin 8
Assign the ACC socket pin 8 action/connection from
ALC and microphone up/down.
• ALC : Inputs ALC signal.
• ud : Inputs up/down signals from the microphone.
ACC socket Pin 4/DATA socket Pin 1
Select modulation signal input level from high and
low.
• HI : High modulation signal level (200 mV rms)
• Lo : Low modulation signal level (2 mV rms)
ACC socket Pin 3 for 144 MHz band
Switch the SEND signal output for 144 MHz band operation ON and OFF.
ACC socket Pin 3 for 430(440) MHz band
Switch the SEND signal output for 430(440) MHz
band operation ON and OFF.
ACC socket Pin 3 for 1200 MHz band
Switch the SEND signal output for 1200 MHz band
operation ON and OFF.
Preamplifier controller for 144 MHz
Switch the preamplifier control capability ON and
OFF. When using the optional AG-25, ON must be selected. Otherwise, the preamplifier is never activated.
DO NOT connect any equipment, such as an SWR
or power meter, between the transceiver and preamplifier. In such case, the preamplifier may not activate properly.
58
P.AMP
P.AMP
SET MODE
10
Preamplifier controller for 430(440) MHz
Switch the preamplifier control capability ON and
OFF. When using the optional AG-35, ON must be selected. Otherwise, the preamplifier is never activated.
P.AMP
P.AMP
P.AMP
P.AMP
DO NOT connect any equipment, such as an SWR
or power meter, between the transceiver and preamplifier. In such case, the preamplifier may not activate properly.
Preamplifier controller for 1200 MHz
Switch the preamplifier control capability ON and
OFF. When using the optional AG-1200, ON must be
selected. Otherwise, the preamplifier is never activated.
DO NOT connect any equipment, such as an SWR
or power meter, between the transceiver and preamplifier. In such case, the preamplifier may not activate properly.
CI-V address
To distinguish between equipment, each CI-V transceiver has its own Icom standard address in hexadecimal code. The IC-910H’s address is 60H.
When 2 or more IC-910Hs are connected to an optional CT-17 CI-V LEVEL CONVERTER, select a different
address for each IC-910H in the range 01H to 7FH.
CI-V baud rate
Select transfer rate for CI-V remote control from Auto,
300, 1200, 4800, 9600 and 19200 bps.
CI-V transceive
Transceive operation is possible with the IC-910H
connected to other Icom transceivers or receivers.
When “on” is selected, changing the operating frequency, operating mode, etc. on the IC-910H automatically changes those of connected transceivers (or
receivers) and vice versa.
59
10
SET MODE
■ FM set mode
Offset frequency for 144 MHz
Set the offset frequency for duplex (repeater) operation within 0–10.00000 MHz range.
This item is displayed when the 144 MHz band is accessed, including the SUB band access capability.
• Default value: 0.6000
FM
Offset frequency for 430(440) MHz
Set the offset frequency for duplex (repeater) operation within 0–10.00000 MHz range.
This item is displayed when the 430(440) MHz band
is accessed, including the SUB band access capability.
• Default value: 5.0000
FM
Offset frequency for 1200 MHz
Set the offset frequency for duplex (repeater) operation within 0–100.00000 MHz range.
This item is displayed when the 1200 MHz band is accessed, including the SUB band access capability.
• Default value: 20.0000
FM
Tone encoder frequency for 144 MHz
(non-European versions)
Select tone encoder frequency for accessing a repeater, etc. from one of 50 available tone frequencies.
This item is displayed when the 144 MHz band is accessed, including the SUB band access capability.
• Default value: 88.5
FM
Tone encoder frequency for 430(440) MHz
(non-European versions)
Select tone encoder frequency for accessing a repeater, etc. from one of 50 available tone frequencies.
This item is displayed when the 430(440) MHz band is
accessed, including the SUB band access capability.
• Default value: 88.5
FM
Tone encoder frequency for 1200 MHz
(non-European versions)
Select tone encoder frequency for accessing a repeater, etc. from one of 50 available tone frequencies.
This item is displayed when the 1200 MHz band is accessed, including the SUB band access capability.
• Default value: 88.5
60
FM
SET MODE
10
Tone squelch frequency for 144 MHz
Select tone squelch frequency from one of 50 available tone frequencies.
This item is displayed when the 144 MHz band is accessed, including the SUB band access capability.
• Default value: 88.5
FM
T-SQ
SQL
Tone squelch frequency for 430(440) MHz
Select tone squelch frequency from one of 50 available tone frequencies.
This item is displayed when the 430(440) MHz band
is accessed, including the SUB band access capability.
• Default value: 88.5
FM
T-SQ
SQL
Tone squelch frequency for 1200 MHz
Select tone squelch frequency from one of 50 available tone frequencies.
This item is displayed when the 1200 MHz band is accessed, including the SUB band access capability.
• Default value: 88.5
FM
T-SQ
SQL
One-touch repeater shift direction
(non-European versions)
Select shift direction for one-touch repeater function
from DUP– and DUP+.
Auto repeater function
(U.S.A. and Korea versions)
Turn the auto repeater function ON and OFF.
To activate the auto repeater function, ON must be
selected in this setting after programming the auto repeater frequency range. (p. 34)
U.S.A. version:
• “on1” Activates duplex only.
• “on2” Activates duplex and tone.
• “oFF” Auto repeater function is turned OFF.
DUP
FM
DUP
FM
Korea version:
• “ON”
Activates duplex and tone.
• “OFF” Auto repeater function is turned OFF.
FM
FM
FM
FM
FM center indicator
Turn the FM center indication ON and OFF.
When the indication is turned ON and the received
signal is off-center in FM mode, the receive indicator
(green) flashes.
61
10
SET MODE
■ SSB/CW set mode
Squelch threshold
Select the squelch threshold level from 12 and 13 o’clock.
• 12 : The squelch closes around the 12 o’clock position of the [SQL] control.
• 13 : The squelch closes around the 13 o’clock position of the [SQL] control.
Carrier frequency
Adjust the carrier frequency for SSB (USB/LSB)
mode operation within –200 to +200 Hz range in
10 Hz steps.
USB LSB
USB LSB
CW pitch frequency
Adjust the CW pitch frequency within 300 to 900 Hz
range in 10 Hz steps.
CW
CW keying speed adjustment
Adjust the built-in electric keyer keying speed to the
desired level within 6 to 60 WPM range.
CW
CW
CW
CW
CW
CW
Semi break-in
Turn the semi break-in function ON and OFF.
CW break-in delay
Adjust the CW break-in delay time to the desired level
within 2.0 to 13.0 sec. range in 0.1 sec. steps.
62
SET MODE
10
AF control relation
Turn the relation of [AF] control for CW side tone output level ON and OFF.
• on
: CW side tone output level is adjustable via
[AF] control adjustment.
• oFF : CW side tone output level is fixed regardless
of [AF] control setting.
CW
CW
CW
CW
CW
CW
CW side tone output level
Adjust the CW side tone output to the desired level
within 0 (no output) to 100 (maximum output) range.
Key type
Select the key type from normal, reverse, bug, OFF
and microphone [UP]/[DN].
•n
: Use built-in electronic keyer.
•r
: Use built-in electronic keyer with reversed
polarity.
• buG : Use built-in electronic keyer as bug key.
• oFF : Use external electronic keyer or straight key.
• ud
: Use microphone’s [UP]/[DN] as a paddle.
CW dot-dash ratio
Adjust the CW dot-dash ratio to the desired level
within 1:1:2.8 to 1:1:4.5 range.
CW
C/N type for 1200 MHz
Select the C/N type for the 1200 MHz band operation
from type 1 and 2.
• tyPE 1 : Provides better characteristics for nearby interference in FM mode operation.
• tyPE 2 : Provides lower noise level just around the
signal in SSB/CW mode operation.
This item is displayed only when the optional UX-910
is installed.
USB LSB CW
FM
63
10
SET MODE
■ Scan set mode
Programmed scanning range
Select the programmed scan range from 1A-1b, 2A2b and 3A-3b.
• 1A-1b : Scans within the range programmed in the
memory channel 1A and 1b.
• 2A-2b : Scans within the range programmed in the
memory channel 2A and 2b.
• 3A-3b : Scans within the range programmed in the
memory channel 3A and 3b.
SCAN
SCAN
SCAN
SCAN
SCAN
SCAN
Scan resume condition
Select the scan resume condition from ON and OFF.
• on
: Scan resumes.
• oFF : Scan cancels when a signal is received.
Scanning speed
Select the scanning speed from high and low.
Scan type
Memory scan (Mode select)
HI
Lo
20 CH/sec.
10 CH/sec.
Prog. scan (TS<1 kHz)
50 steps/sec. 25 steps/sec.
Prog. scan (TS>1 kHz)
20 steps/sec. 10 steps/sec.
Tone scan
20 steps/sec. 10 steps/sec.
■ Memo pad set mode
Number of memo pad channels
Select the number of memo pad channels available
from 5 and 10.
•5
: 5 memo pad channels can be used.
• 10
: 10 memo pad channels can be used.
■ Compressor set mode
Compression level
Adjust the compression level for the speech compressor to the desired level within 0–100% range.
64
COMP
MP
SET MODE
10
■ VOX set mode
VOX sensitivity
Adjust the VOX sensitivity within 0–100% range.
VOX
VOX delay time
Adjust the transmit-to-receive switching delay to the
desired level within 0.0 sec. to 2.0 sec. range in
0.1 sec. steps.
VOX
Anti VOX
Adjust the anti VOX gain within 0–100% range.
VOX
■ Attenuator set mode
Attenuation level for 144 MHz
Adjust the attenuation level to the desired level within
0–100% range for the 144 MHZ band operation.
Attenuation level for 430(440) MHz
Adjust the attenuation level to the desired level within
0–100% range for the 430(440) MHZ band operation.
65
10
SET MODE
■ Transmit set mode
Time-out timer
Select the time period for the time-out timer function
from OFF, 3, 5, 10, 20 and 30 min.
PTT lock
Turn the transmission inhibit capability ON and OFF.
Any control for transmission is inhibited when this
item is ON.
SUB band mute
Turn the SUB band audio mute function ON and OFF.
The SUB band audio is muted while transmitting
when this function is turned ON.
66
SUB
SUB
SET MODE
10
■ NR set mode
Noise reduction level for 144 MHz
Adjust the noise reduction level to the desired level
within 0–15 for the 144 MHz band operation.
Adjust it to the level that noise signals are reduced,
and received audio has no distortion.
NR
This item is displayed only when the optional UT-106
is installed.
Noise reduction level for 430(440) MHz
Adjust the noise reduction level to the desired level
within 0–15 for the 430(440) MHz band operation.
Adjust it to the level that noise signals are reduced,
and received audio has no distortion.
NR
This item is displayed only when the optional UT-106
is installed.
Noise reduction level for 1200 MHz
Adjust the noise reduction level to the desired level
within 0–15 for the 1200 MHz band operation.
Adjust it to the level that noise signals are reduced,
and received audio has no distortion.
NR
This item is displayed only when the optional UT-106
is installed.
■ SWP set mode
Sweeping interval
Select the sweeping interval for the simple band
scope function from 3, 5 and 10 sec.
SWP
67
10
SET MODE
■ RIT/SHIFT set mode
RIT control assignment
Assign [RIT] control function from rit, dIAL, SubdIAL
and Sub-SFt.
• rit
: [RIT] control functions as RIT control.
• dIAL
: [RIT] control functions as tuning dial for
MAIN band.
• SubdIAL : [RIT] control functions as tuning dial for
SUB band.
• Sub-SFt : [RIT] control functions as IF shift control
for SUB band.
SHIFT control assignment
Assign [SHIFT] control function from SFt, Sub-SFt,
dIAL and SubdIAL.
• SFt
: [SHIFT] control functions as IF shift control.
• Sub-SFt : [SHIFT] control functions as IF shift control for SUB band.
• dIAL
: [SHIFT] control functions as tuning dial
for MAIN band.
• SubdIAL : [SHIFT] control functions as tuning dial
for SUB band.
RIT indication
Turn the RIT adjusting value indication ON and OFF.
The value is displayed while adjusting when this function is turned ON.
68
SET MODE
10
■ Speech set mode
Output level
Adjust the speech audio output level within 0 (no output) to 100 (maximum output) range.
• Default value: 50
Announcement language
Select the announcement language from English,
Japanese and OFF.
• EnG : Announces in English.
• JPn : Announces in Japanese
• oFF : No announcement.
Announcement speed
Select the announcement speed from high and low.
• HI
: Faster announcement.
• Lo
: Slower announcement.
S-meter level announcement
Turn the S-meter level announcement capability ON
and OFF.
• on
: Announces S-meter level with the operating
frequency and mode.
• oFF : Announces the operating frequency and
mode only.
69
11
OPTION INSTALLATIONS
■ Internal view
• Top view — PA unit
DC power
connector
Circuitly fuse
(FGB 4 A)
Cooling fan
• Bottom view — PLL/MAIN unit
PLL unit
DSP unit
J1801
for UT-102
connection
SSB filter
(MAIN band)
CW-N filter
(MAIN band)
PLL ref. signal
(for UX-910)
DSP unit
CW-N filter
(SUB band)
SSB filter
(SUB band)
MAIN unit
70
OPTION INSTALLATIONS
11
■ Opening the transceiver’s case
Follow the case and cover opening procedures
shown here when you want to install an optional
unit or adjust the internal units, etc.
q Remove the 5 screws from the top of the
transceiver and the 4 screws from the sides,
then lift up the top cover.
w Turn the transceiver upside down.
e Remove the 5 screws from the bottom of the
transceiver, then lift up the bottom cover.
Disconnect the
speaker cable.
CAUTION: DISCONNECT the DC power
cable from the transceiver before performing
any work on the transceiver. Otherwise, there
is a danger of electric shock and/or equipment
damage.
◊ Opening the PA unit cover
q Remove the 8 screws and grounding plate from the
PA unit cover.
w Remove fastening tape from the inside power cable.
e Slide the PA unit cover as shown below.
grounding plate
■ UT-102 VOICE SYNTHESIZER UNIT
The UT-102 announces the accessed readout’s frequency, mode, etc. (S-meter level can also be announced—p. 69) in a clear, electronically-generated
voice, in English (or Japanese).
➥ Push [SPCH] to announce the frequency, etc.
UT-102
q Remove the bottom cover as shown above.
• Remove the UX-910 if you have installed it. (p. 73)
w Remove the protective paper attached to the bottom
of the UT-102 to expose the adhesive strip.
e Plug UT-102 into J1801 on the MAIN unit as shown
in the diagram at right.
r Return the bottom cover to its original position.
t Set the speech level, announcement language and
S-meter announcement in the speech set mode
(p. 69) if desired.
J1801
MAIN unit
71
11
OPTION INSTALLATIONS
■ UT-106 DSP UNIT
The UT-106 provides AF DSP functions such as noise
reduction and auto notch.
◊ Installing 2nd DSP unit (rear panel side)
Up to 2 DSP units can be installed for simultaneous
DSP operation for both MAIN and SUB bands.
w Remove the shielding plate.
e Remove the connection cable from J1761 on the
MAIN unit. Connect the cable into J1 on the UT-106.
q Remove the top and bottom covers.
• Remove the UX-910 if you have installed it. (p. 73)
When only 1 DSP unit is installed, DSP functions can
be operated in either the MAIN or SUB band,
whichever is being accessed.
RECOMMENDATION:
When installing only 1 DSP unit, you can install into
either front or rear panel side. However, installing a
DSP unit into the front panel side may be easier and
also safer.
◊ Installing 1st DSP unit (front panel side)
q Remove the top and bottom covers.
• Remove the UX-910 if you have installed it. (p. 73)
w Remove the shielding plate.
e Remove the connection cable from J1751 on the
MAIN unit. Connect the cable into J1 on the UT-106.
r Plug the connection cable (P1) from the UT-106 to
J1751 on the MAIN unit.
t Plug the flat cable into J3 on the UT-106 and to
J1771 on the MAIN unit.
• Take care of the conductor direction.
• Attach the Velcro tape to the UT-106 and PLL unit shielding plate.
y Return the shielding plate, top cover and bottom
cover to their original positions.
The cable between J1221 on the MAIN and J1
on the DSP unit, must be set in the groove of the
chassis (see diagram below).
Otherwise, the cable may be damaged when returning the shield plate to its original position.
r Plug the connection cable (P1) from the UT-106 to
J1761 on the MAIN unit.
t Plug the flat cable into J3 on the UT-106 and to
J1781 on the MAIN unit.
• Take care of the conductor direction.
• Attach the Velcro tape to the UT-106 and PLL unit shielding plate.
y Return the shielding plate, top cover and bottom
cover to their original positions.
Set cable into the groove.
J1
Shielding plate
PLL unit
J3
J1
UT-106
PLL unit
Shielding plate
J1781
P1
UT-106
J3
J1
P1
J1751
J1771
Take care of the
conductor direction.
72
J1761
Take care of the
conductor direction.
MAIN unit
MAIN unit
OPTION INSTALLATIONS
11
■ UX-910 1200 MHz BAND UNIT
The UX-910 is a band unit for 1200 MHz band operation. FM, SSB (USB/LSB), CW and CW narrow mode
operations are available.
r Place the UX-910 using the supplied 4 screws.
BE CAREFUL not to drop the supplied screws
inside the transceiver.
q Remove the bottom cover as shown in the diagram
on p. 71.
w Remove the antenna plate from the chassis using a
standard screw driver.
WARNING!
NEVER attempt to remove the antenna plate
using your finger, this may result in injury.
Antenna plate
UX-910
e Connect the FFC (Flexible Flat Cable) of the
UX-910 to J2 on the MAIN unit, DC power cable to
the power connector (W305) from the PA unit and
the coaxial cable to the J541 on the PLL unit.
CAUTION
NEVER catch the cables from the optional DSP
unit(s) between chassis and the UX-910, this
may damage the DSP unit(s) and/or transceiver.
Coaxial cable
UX-910
J2
MAIN unit
PLL unit
Flexible flat cable
Turn the flexible flat cable up under the UX-910.
J541
t Return the bottom cover to its original position.
UX-910
DC power cable
J2
Flexible flat cable
Power connector
73
11
OPTION INSTALLATIONS
■ CR-293 HIGH STABILITY CRYSTAL UNIT
By installing the CR-293, the total frequency stability
of the transceiver will be improved.
q Remove the bottom cover as shown in the diagram
on p. 71.
t Unsolder the original reference crystal, then remove
it.
• The original reference crystal unit is soldered at both top
and bottom sides of the PCB (Printed Circuit Board).
• Remove the UX-910 if you have installed it. (p. 73)
w Remove the 6 screws from the PLL shield cover,
then lift up the PLL shield cover.
Unsolder the
original
crystal.
CR-293
Original crystal
J501
J1051
Flexible flat cable
PLL shield
cover
e Disconnect the FFC (Flexible Flat Cable) from the
DISPLAY unit and the connection cable connectors
from J501 and J1051 on the MAIN unit.
r Remove the 5 screws from the PLL unit, then lift up
the PLL unit.
y Install the CR-293 and solder the leads.
u Return the PLL unit, PLL shield cover and bottom
cover to their original positions.
Original crystal soldering point
CR-293 soldering
points
74
OPTION INSTALLATIONS
11
■ FL-132/FL-133 CW NARROW FILTER
The IC-910H has a CW narrow mode to provide better
S/N (Signal-to-Noise), or to reject interference. To operate the CW narrow mode, an optional CW narrow filter is necessary.
NOTE: For CW narrow mode during satellite operation, the FL-133 (for SUB band filter) is necessary
since the SUB band circuit is used for receiving, although the MAIN band display shows receive frequency.
Passband width
at –6 dB
at –60 dB
FILTER
Built-in filter
2.3 kHz
4.2 kHz
FL-132/133
500 Hz
1.34 kHz
q Remove the bottom cover as shown in the diagram
on p. 71.
• Remove the UX-910 if you have installed it. (p. 73)
w Disconnect the connection cable connectors from
J501 and J1051 on the MAIN unit.
e Remove the 2 clips.
WARNING!
BE CAREFUL not to pinch your finger with the
clip.
t Install FL-132 or FL-133 to the specified position on
the MAIN unit.
FL-132
(MAIN)
FL-133
(SUB)
y Solder then cut the leads, keeping 2–3 mm (1⁄8″) of
the leads from the bottom of the MAIN unit.
u Return the MAIN unit and clips to their original positions.
i Re-connect the connection cable connector to J501
and J1051 on the MAIN unit.
o Return the bottom cover to the original position.
(MAIN)
r Remove the 6 screws from the MAIN unit, then lift
up the MAIN unit.
(SUB)
PLL unit
J501
J1051
MAIN unit
Clips
75
11
MAINTENANCE
■ Troubleshooting
The following chart is designed to help you correct
problems which are not equipment malfunctions.
POWER
PROBLEM
If you are unable to locate the cause of a problem or
solve it through the use of this chart, contact your nearest Icom Dealer or Service Center.
POSSIBLE CAUSE
No sounds comes from • Volume level is too low.
the speaker.
• The squelch is closed.
• Rotate [AF] clockwise to obtain a suitable listening level.
• Rotate [RF/SQL] to 12 o’clock position to open
the squelch.
• Push [TRANSMIT] to receive or check the SEND
line of an external unit, if desired.
Sensitivity is low.
RECEIVE
REF.
• Reconnect the DC power cable correctly.
–
• Check the cause, then replace the fuse with a p. 77
spare one. (Fuses are installed in the DC power
cable and the internal PA unit.)
• The transceiver is in the transmitting condition.
• The antenna is not connected properly.
• The attenuator is activated.
• The S-meter squelch is activated.
Received audio is dis- • Incorrect sideband (USB/LSB) is selected.
torted.
• Receiving an FM signal.
• Noise blanker is activated.
• Noise reduction is activated.
TRANSMIT
SOLUTION
Power does not come on • DC power cable is improperly connected.
when [POWER] is pushed. • Fuse is blown.
p. 26
p. 26
pgs.
2, 13
• Reconnect to the antenna connector.
–
• Push [ATT] to turn the attenuator OFF.
p. 29
• Rotate [RF/SQL] to the position where the noise p. 26
just disappears.
• Switch USB and LSB by pushing [SSB/CW] for
1 sec.
• Push [FM] to select FM mode.
• Push [AFC/NB] to turn the noise blanker function
OFF.
• Set the noise reduction level in the NR set mode
for maximum readability using [SET] and
[AFC/NB•NR], or turn OFF the function by pushing [AFC/NB•NR] for 1 sec.
p. 23
p. 23
p. 30
p. 31
Transmitting is impossible. • PTT lock function is activated.
• Turn the PTT lock function OFF in the TRANSMIT p. 66
set mode using [SET] and [TRANSMIT].
Output power is too low.
• Rotate [RF PWR] clockwise.
• Rotate [MIC GAIN] clockwise.
• [RF PWR] is set too far counterclockwise.
• [MIC GAIN] is set too far counterclockwise.
p. 32
p. 32
No contact possible with • Split frequency operation or duplex operation is • Push [SPLIT] momentarily or for 1 sec. to turn the p. 37
another station.
activated.
split or duplex function OFF.
• RIT function is activated.
• Push [RIT] to turn the RIT function OFF.
p. 27
Transmitted signals are • [MIC GAIN] to far clockwise.
distorted.
• Set [MIC GAIN] to a suitable level.
p. 32
Repeater cannot be ac- • Duplex operation is not activated.
• Push [SPLIT•DUP] for 1 sec. to turn duplex oper- p. 34
cessed.
ation ON.
• No subaudible tone or incorrect tone frequency • Push [TONE] to activate the subaudible tone or p. 35
is selected.
select a suitable tone frequency in the FM set
mode using [SET] and [FM].
SCAN
Programmed scan does • VFO mode is not selected.
• Push [V/M 1] to select VFO mode.
p. 21
not start.
• [RF/SQL] is assigned to RF gain and squelch is • Reset [RF/SQL] control assignment and set it to p. 26
opened.
the threshold point.
Memory scan does not • Memory mode is not selected.
start.
• No memory channels are programmed.
• Push [V/M 1] to select memory mode.
p. 40
• Program desired frequencies into memory chan- p. 41
nels.
76
SPEECH
No announcement when • The voice synthesizer unit has not been in- • Install the optional vice synthesizer unit, UT-102. p. 71
[SPCH] is pushed.
stalled.
• The announcement level is set to “0” or too low. • Set the announcement level to a suitable level in p. 69
the SPCH set mode using [SET] and [SPCH].
• The announcement language is set to “oFF.”
• Set the announcement language to “Eng” (or JPn) p. 69
in the SPCH set mode using [SET] and [SPCH].
DISPLAY
Mode select scan does not • Mode select scan mode has not been selected. • Push [SPCH•LOCK] for 1 sec. on the desired op- p. 47
start.
erating mode programmed channel.
• Only one channel is programmed with the se- • Program more than two channels with the desired p. 41
lected operating mode.
operating mode.
The displayed frequency • The dial lock function is activated.
does not change properly. • The internal CPU has malfunctioned.
• Push [SPCH•LOCK] to turn the lock function OFF. p. 25
• Reset the CPU.
p. 77
MAINTENANCE
■ Fuse replacement
11
DC POWER CABLE FUSE REPLACEMENT
If a fuse blows or the transceiver stops functioning, try
to find the source of the problem, and replace the damaged fuse with a new, rated fuse.
30 A fuse
CAUTION: DISCONNECT the DC power cable
from the transceiver when changing a fuse.
The IC-910H has 2 types of fuses installed for transceiver protection.
• DC power cable fuses ................................ FGB 30 A
• Circuitry fuse ................................................ FGB 4 A
CIRCUITRY FUSE REPLACEMENT
The 13.8 V DC from the DC power cable is applied to
all units in the IC-910H, except for the power amplifier, through the circuitry fuse. This fuse is installed in
the PA unit.
q Remove the top cover as shown on p. 71.
w Remove the 11 screws from the PA shielding plate,
then remove the plate.
e Replace the circuitry fuse as shown in the diagram
at right.
r Replace the PA shielding plate and top cover.
Circuitry fuse (4 A)
■ CPU resetting
Resetting CLEARS all programmed contents in
memory channels and returns programmed values
in set mode to default values.
[POWER]
[MW 4] [M-CL 5]
When first applying power or when the function
seems to be displaying erroneous information, reset
the CPU as follows:
q Make sure the transceiver power is OFF.
w While pushing [MW 4] and [M-CL 5], push
[POWER] to turn power ON.
• The internal CPU is reset.
• The transceiver displays its initial VFO frequencies
when resetting is complete.
77
13
CONTROL COMMAND
■ Remote jack (CI-V) information
• CI-V connection example
The transceiver can be connected through an optional
CT-17 CI-V LEVEL CONVERTER to a personal computer
equipped with an RS-232C port. The Icom Communications Interface-V (CI-V) controls the following functions of the transceiver.
IC-910H
9–15
V DC
personal
computer
Up to 4 Icom CI-V transceivers or receivers can be
connected to a personal computer equipped with an
RS-232C port. See p. 59 for setting the CI-V condition
using set mode.
ct- 17
• Data format
mini-plug cable
The CI-V system can be operated using the following
data formats. Data formats differ according to command numbers. A data area or sub command is added
for some commands.
NG MESSAGE TO CONTROLLER
78
Command number
(see table at right)
Sub command number
(see table at right)
Transceiver’s default address
Controller’s default address
Preamble code (fixed)
FE FE E0 60 Cn Sc
Data area
FD
FE FE E0 60 FA FD
End of message code (fixed)
NG code (fixed)
End of message code (fixed)
BCD code data for frequency or
memory number entry
IC-910H TO CONTROLLER
FE FE E0 60 FB FD
End of message code (fixed)
FD
OK code (fixed)
Data area
Transceiver’s default address
Transceiver’s default address
Command number
(see table at right)
Sub command number
(see table at right)
Controller’s default address
Transceiver’s default address
Preamble code (fixed)
FE FE 60 E0 Cn Sc
Controller’s default address
Controller’s default address
Preamble code (fixed)
Preamble code (fixed)
End of message code (fixed)
OK MESSAGE TO CONTROLLER
BCD code data for frequency or
memory number entry
CONTROLLER TO IC-910H
BC-25
(optional)
CONTROL COMMAND
Command Sub command
Description
Command Sub command
00
—
Send frequency data for transceive.
01
××
Send mode data for transceive.
Read band edge frequencies.
01
02
02
—
Read operating frequency data.
01
03
—
Read operating mode data.
04
—
Set operating frequency.
05
—
06
00
01
03
04
Set LSB.
Set USB.
Set CW.
Set FM.
07
—
Select VFO mode.
Select VFO A.
Select VFO B.
Equalize VFO A and VFO B.
Switch VFO A and VFO B.
Select MAIN VFO.
Select SUB VFO.
—
Select memory mode.
08
—
Memory write.
0A
—
Transfer memory contents to
VFO.
0B
—
Memory clear.
0C
—
Read duplex offset frequency.
0D
—
Set duplex offset frequency.
0E
00
01
D0
D3
Cancel scan.
Start scan.
Set scan resume OFF.
Set scan resume ON.
0F
00
01
10
11
12
Turn the split function OFF.
Turn the split function ON.
Set simplex operation.
Set DUP– operation.
Set DUP+ operation.
00
01
02
03
04
05
06
07
08
09
10
11
Set 1 Hz tuning step.
Set 10 Hz tuning step.
Set 50 Hz tuning step.
Set 100 Hz tuning step.
Set 1 kHz tuning step.
Set 5 kHz tuning step.
Set 6.25 kHz tuning step.
Set 10 kHz tuning step.
Set 12.5 kHz tuning step.
Set 20 kHz tuning step.
Set 25 kHz tuning step.
Set 100 kHz tuning step.
00
20
Turn attenuator OFF.
Turn attenuator ON.
11
04
06
14
09
0A
0B
0C
0E
Select memory channel.
*1A=0100
1b=0101
2A=0102
2b=0103
3A=0104
3b=0105
Call=0106
09
10
02
03
00
01
A0
B0
D0
D1
01–0106*
00
13
0F
01
15
02
12
22
40
+level data
41
1A
Announce all S-meter levels,
displayed frequency and mode.
Announce displayed frequency.
Announce operating mode.
[AF] level setting (0=max. CCW;
128=center; 255=max. CW).
[RF GAIN] level setting
(0=max. CCW; 255=max. CW).
[SQL] level setting (0=max.
CCW; 255=max. CW).
[IF SHIFT] level setting (0=max.
CCW; 128=center; 255=max. CW).
Set noise reduction level
(0=0%; 255=100%).
Set CW pitch (0=300 Hz;
255=900 Hz).
[RF PWR] level setting (0=max.
CCW; 128=center; 255=max. CW).
[MIC GAIN] level setting (0=max.
CCW; 128=center; 255=max. CW).
Key speed setting (0=6 wpm;
255=60 wpm).
Set mic. compressor level
(0=0%; 255=100%).
Set break-in delay (0=2.0 sec;
255=13.0 sec.).
Read squelch condition (open
Read S-meter level.
46
47
4A
Set pre-amp (0=OFF; 1=ON).
Set AGC (0=Slow; 1=Fast).
Set noise blanker (0=OFF; 1=ON).
Set noise reduction level
(0=OFF; 1–15=ON).
Set auto notch filter
(0=OFF; 1=ON).
Set subaudible tone
(0=OFF; 1=ON).
Set tone squelch (0=OFF; 1=ON).
Set mic. compressor
(0=OFF; 1=ON).
Set VOX (0=OFF; 1=ON).
Set break-in (0=OFF; 1=ON).
Set AFC (0=OFF; 1=ON).
00
Read the transceiver ID.
42
43
44
19
Description
or closed).
02
16
13
00
01
02
+level data
03
+level data
04
+level data
05
+level data
06
07
08
Read/write memory channel.
Set satellite memory.
Set VOX gain level
(0=0%; 255=100%).
Set VOX delay
(0=0 sec.; 20=2.0 sec.).
Set anti-VOX
(0=0%; 255=100%).
Attenuation level setting
(0=0%; 255=100%).
Set RIT (0=OFF; 1=ON; 2=Sub dial).
Set satellite mode
(0=OFF; 1=ON).
Set simple bandscope
(0=OFF; 1=ON).
79
14
SPECIFICATIONS
• Receiver
• Frequency coverage :
Version
U.S.A.
Europe
144 MHz
(Unit: MHz)
430(440) MHz
1200 MHz*
Tx: 144.0–148.0 Tx: 430.0–450.0 Tx: 1240.0–1300.0
Rx: 136.0–174.0*2 Rx: 420.0–480.0*3 Rx: 1240.0–1320.0*4
144.0–146.0
430.0–440.0
1240.0–1300.0
Australia 144.0–148.0
430.0–450.0
1240.0–1300.0
144.0–146.0
432.0–438.0
1240.0–1300.0
Sweden
* Optional UX-910
*2 Guaranteed range is 144.0–148.0 MHz.
*3 Guaranteed range is 430.0–450.0 MHz.
*4 Guaranteed range is 1240.0–1300.0 MHz.
• Mode
: USB, LSB, CW, FM, FM-N*
• No. of memory Ch.
*Not available in 1200 MHz
: 212 (99 regular, 6 scan edges, 1
calls for each band) plus 10
• Antenna connector
• Usable temp. range
• Frequency stability
satellite memories)
: SO-239 (50 Ω; VHF)
Type-N (50 Ω; UHF)
: –10˚C to +60˚C;
+14˚F to +140˚F
: Less than ±3 ppm
(–10 to 60˚C; +14 to +140˚F)
• Frequency resolution : 1 Hz minimum
• Power supply
: 13.8 V DC ±15%
(negative ground)
• Current drain (at 13.8 V DC; approx.):
Transmit
Max. power
Receive
Standby
23.0 A
2.0 A
(3.0 A; UX-910)
Max. audio
2.5 A
(3.5 A; UX-910)
• Dimensions
: 241(W) × 94(H) × 239(D) mm
(projections not included) 91⁄2(W) × 311⁄16(H) × 913⁄32(D) in
• Weight (approx.)
: 4.5 kg; 10 lb
(5.35 kg; 11 lb 13 oz w/UX-910)
• ACC 1 connector
• CI-V connector
• DATA connectors
: 8-pin DIN connector
: 2-conductor 3.5 (d) mm (1⁄8″)
: 6-pin mini DIN × 2
(for MAIN and SUB)
• Transmitter
• Output power (continuously adjustable):
144 MHz
5–100 W
430(440) MHz
5–75 W
1200 MHz
1–10 W (optional UX-910)
• Modulation system
SSB
Balanced modulation
FM
Variable reactance modulation
• Spurious emission
144/430(440) MHz More than 60 dB
1200 MHz
More than 50 dB
• Carrier suppression : More than 40 dB
• Unwanted sideband : More than 40 dB
suppression
• Microphone connector : 8-pin connector (600 Ω)
• KEY connector
: 3-conductor 3.5(d) mm (1⁄4″)
80
• Receive system
VHF SSB, CW Single conversion superheterodyne
FM
Double conversion superheterodyne
UHF SSB, CW Double conversion superheterodyne
FM
Triple conversion superheterodyne
(Unit: MHz)
• Intermediate frequencies:
MAIN BAND
1st
1200 MHz 430(440) MHz 144 MHz
• General
SUB BAND
2nd
3rd
1st
2nd
3rd
SSB 10.8500
—
—
10.9500
—
—
CW 10.8491
—
—
—
10.9491
—
10.9500 0.455
—
SSB 71.2500 10.8500
—
71.3500 10.9500
—
CW 71.2491 10.8491
—
71.3491 10.9491
—
FM
FM
10.8500 0.455
—
71.2500 10.8500 0.455 71.3500 10.9500 0.455
SSB 243.8500 10.8500
—
243.9500 10.9500
—
CW 243.8491 10.8491
—
243.9491 10.9491
—
FM
243.8500 10.8500 0.455 243.9500 10.9500 0.455
• Sensitivity
SSB, CW (10 dB S/N) Less than 0.11 µV
FM (12 dB SINAD)
Less than 0.18 µV
• Squelch sensitivity (threshold):
SSB, CW
Less than 1.0 µV
FM
Less than 0.18 µV
• Selectivity
SSB, CW
More than 2.3 kHz/–6 dB
Less than 4.2 kHz/–60 dB*
FM
More than 15.0 kHz/–6 dB
Less than 30.0 kHz/–60 dB*
FM-N
More than 6.0 kHz/–6 dB
Less than 18.0 kHz/–36 dB
CW-N
More than 0.5 kHz/–6 dB
(w/FL-132 or FL-133) Less than 1.34 kHz/–60 dB*
*Except 1200 MHz band
• Spurious and image rejection ratio:
144/430(440) MHz More than 60 dB
1200 MHz
More than 50 dB
• AF output power
: More than 2.0 W at 10%
(at 13.8 V DC)
distortion with an 8 Ω load
• RIT variable range
144/430(440) MHz ±1.0 kHz (SSB, CW)
±5.0 kHz (FM)
1200 MHz
±2.0 kHz (SSB, CW)
±10.0 kHz (FM)
• IF SHIFT variable range : More than ±1.2 kHz
• PHONES connector : 3-conductor 6.35(d) mm (1⁄4″)
• Ext. SP connectors : 2-conductor 3.5 (d) mm (1⁄8″)
/8 Ω × 2 (for MAIN and SUB)
All stated specifications are typical and subject to
change without notice or obligation.
OPTIONS
15
CR-293 HIGH STABILITY
CRYSTAL UNIT
FL-132 (for MAIN band)
FL-133 (for SUB band and satellite
operation)
CW NARROW FILTERS
HM-12 HAND MICROPHONE
Frequency stability: ±0.5 ppm
(0˚C to +60˚C)
Have good shape factor and provide
better CW reception during crowded
band conditions. 500 Hz/–6 dB
Hand microphone equipped with
[UP]/[DOWN] switches. Same as that
supplied with the transceiver.
SP-21 EXTERNAL SPEAKER
SM-20 DESKTOP MICROPHONE
UT-106 DSP UNIT
Designed for base station operation.
• Input impedance: 8 Ω
• Max. input power: 5 W
Unidirectional, electret microphone for
base station operation. Includes [UP]
and [DOWN] switches and a low cut
function.
Allows AF DSP capabilities, including
noise reduction and auto notch filter.
UX-910 1200 MHz BAND UNIT
MB-23 CARRYING HANDLE
CT-17 CI-V LEVEL CONVERTER
Allows you additional all mode operation on the 1200 MHz band.
Carrying handle,
portable operation.
convenient
for
For remote transceiver control using a
personal computer. You can change
frequencies, operating mode, memory
channels, etc.
AG-25 (for 144 MHz band),
AG-35 (for 430(440) MHz band),
AG-1200 (for 1200 MHz band)
WEATHER-PROOF PREAMPLIFIERS
SP-7 EXTERNAL SPEAKER
External all-weather, mast mounting preamplifiers for compensating for coaxial cable loss.
Announces the receive frequency, mode and S-meter level
in a clear, electronically-generated voice, in English (or
Japanese).
Compact speaker for base station operation.
UT-102 VOICE SYNTHESIZER UNIT
IC-MB5 MOBILE MOUNTING BRACKET
Transceiver mounting bracket for mobile operation.
81
Count on us!
A-5699H-1EX-w
Printed in Japan
© 2000 Icom Inc.
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan

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