Japan Radio NRD-545 User Manual 47067

Japan Radio Co Ltd. 47067

8

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Document ID	47067
Application ID	WqbWOt5k8kV52Ijdi3vv0w==
Document Description	8
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	129.56kB (1619478 bits)
Date Submitted	1999-07-12 00:00:00
Date Available	1998-08-11 00:00:00
Creation Date	2001-06-12 16:18:35
Producing Software	Acrobat Distiller 4.0 for Windows
Document Lastmod	2001-06-12 16:18:58
Document Title	47067.pdf
Document Author:	jsoscia

FCC ID: CKENRD-545
EXHIBIT 3
USER INSTRUCTIONS
FORTY—NINE PAGE USER INSTRUCTIONS FOLLOW THIS SHEET
USER INSTRUCTIONS
FCC ID: CKENRD—545
EXHIBIT 3
INSTRUCTION MANUAL
GE
FOR E
1 ' ' El
MODEL NRD-545
gape.” Radio Co.,.1’z‘d.
,
Congratulations on your purchase of Japan Radio Company’s NED-545 DSP
RECEIVER.
This product is a receiver which fully covers frequencies in the range 100 kHz to
1999.999 MHz. Note that you need the wideband converter unit CHE-199
(option) to receive frequencies higher than 30 MHz.
0 Before using this product, be sure to thoroughly read this instruction manual
to ensure correct use.
OAfter reading this instruction manuallstore in a safe place so that it can be
referred to whenever necessary,
This instruction manual will come in useful if you are unsure of an operation
during use or if some trouble occurs.
< Before Use > '
Carefully read the Precautions Upon Use beiore using the equipment to ensure proper use.
The cautions show here describe how to avoid injuring yourself or others while using the equipment. and
how to avoid damaging the equipment. Be sure to follow these instructions.
The tollow warning and caution labels indicate the degree of equipment damage or personal injury that can
occur if you do not follow the safety instructions and use the equipment improperly.
c WARNING This label indicate there is a possibility of death or serious injury if the proper
procedures are not followed.
2 CAUTION This label indicate there is a possibility of injury or damage to the equipment it
the proper procedures are not followed.
Examples of Icons
Aicons tell you that caution (including DANGER and WARNING) is urged.
The actual details of the caution are pictured inside the icon. (The icon on the left
indicates that caution is urged to prevent electric shock.)
cAunau
nest-me SHOCK
® icons tell you that a certain action is forbidden.
The actual details of the forbidden action are pictured either inside or near to the icon.
(The icon In the left indicates that dismantling is forbidden.)
wwmuuo
FolIIDDEN
. icons tell you that a certain a certain action is compulsory.
The actual details of the compulsory action are pictured inside the icon,
(The icon in the lelt indicates that the power plug must be removed from its outlet)
Fons-anew
“nova nun msmumon

[QWARNING
®®®®®®®®
Do not insert metal or flammable objects through the vents on the back and top cover.
Doing so can result in ﬁre or electric shock.
Do not use any cable other than the supplied AC cable.
Doing so can result in ﬁre or electric shock.
Do not scratch, tear, modify. excessively bend, yank, or twist the power cord. or allow it to become
excessively hot. Doing so can damage and tear the cord. resulting in igniting, electric shock. or
equipment failures.
Do not set anything heavy on the power cord or connector cords, or sandwich them between
objects. Doing so can damage and tear the cords, resulting in igniting. elech’ic shock. or equipment
failures
Do not use the power cord ii the cord or plug is damaged. or if it ﬁts loosely in the outlet. Doing so
can result in a short circuit and start ﬁre.
Only use the speciﬁed supply voltage. Using a different supply voltage can cause the equipment to
ignite or burst into ﬂames.
Only use the speciﬁed fuse type. Using a different type of fuse can cause the equipment to ignite or
burst into flames.
You are forbidden to subiect the cell to any of the following when handling the cell:
- Charging
- Forced charging
- Uses other than speciﬁed
~ Burning of cells
- Heating above 70 °C
- Short-circuib'ng
- Disassembly, damage and deformation by applied pressure
- Exposure (eg leaving the cell outside or in a hot, humid environment)
- Water leakage
Failure to observe the above handing precautions may cause the cell to explode. ignite or emit
gases that are harmful to the human body.
if the cell emits gases, avoid inhaling the gas. and immediately ventilate the surrounding area.
Do not disassemble nor remodel this product. Illegal remodeling not only results in a ﬁne according
to the Regulations, but also can result in fire, electrocution or malfunction.
To internal inspection or repair. contact your dealer or the nearest JRC of'tice. J
AWARNING
@€i§ ﬂtQQ
When connecting the DC power cord. be sure the positive (+) and negative (-) polarities are correct.
Connecting the cord with the polarities set backwards can result in igniting, electric shock, or
equipment failures.
The equipment will become very hot if it is used for an extended period of time. Be careful not to
allow children or other adults in the area to touch the equipment Touching the equipment can burn
the skin. The equipment should be installed in an area with good ventilation.
Using the product while it is emitting smoke. emitting a strange odor. or otherwise functioning
abnormally can result in ﬁre or electric shock. In the event of such problems, immediately turn the
power OFF and he sure to remove the power plug from the electric outlet. Next, contact your dealer
or the nearest JRC ofﬁce. Do not ever attempt to ﬁx the product yourself.
if you hear thunder, turn the power switch OFF and remove the power plug from the AC outlet as a
safety precaution. Never touch the antenna or the main unit under such conditions. Doing so can
result electric shock.
Never touch the equipment or its power plug with wet hands. Doing so can result in electric shock.
A CAUTION
ﬁtGQ GG®®®®®
Do not install the product in locations such as those listed below. Doing so can result in fire or
electric shock, or cause the product to fail.
- Locations which are exposed to direct sunlight, in the path of heaters, or otherwise exposed to hot
air
' - Locations with poor ventilation
- Locations which are subject to large amounts of moisture or dust
- Locations in the vicinity of objects which could change in shape or ignite if heated
~ Locations in the vicinity of ﬂower vases or other objects containing water
- Unstable locations
Do not open the product case except to add options. Opening the case can result in injury or electric
shock, or damage the equipment. Also, may invalidate the equipment guarantee.
Do not sit on the product or place anything on top of it Doing so may cause the product to fall or be
knocked over, resulting in injury or damaging the equipment.
Do not drop or hang the product. Doing so can result in injury or damage the equipment.
Do not touch areas of the equipment which are not described in this manual. in particular, do not
touch the interior of the equipment. Doing so can cause the equipment to fall.
Do not use headphones when using the product for along time. Doing so can impair hearing.
Do not install the product near televisions, radios, or computers. Doing so can cause radio
frequency interference in the product or nearby electronic devices.
As a safety precaution. turn the power OFF and remove the power plug from its outlet before
cleaning the exterior of the product. Mpe off dust, etc. with a dry towel. If the exterior is extremely
dirty. use a neutral detergent soaked in water. Never use paint thinner. benzene. or alcohol. Doing
so can cause the equipment to fail.
Be sure to hold the power cord or connector cable by its plug when inserting or removing it. Failure
to do so can result in electric shock, or cause a short circuit and start a ﬁre.
Ground terminals should be as thick as possible and installed securely. ere runs should be as
short as possible. Never connect a ground terminal to a gas pipe. wire conduit, etc. Doing so can
result in explosion or electric shock in the event of a failure or electric leak.
if you do not plan to use the equipment for an extended period of time, remove the power plug from
the AC outlet. Grab the cord by the plug when removing it from the outlet. Do not pull directly on the
cord. Doing so can result in heating, igniting. and ﬁre.
JRC Ofﬁces
Refer to the end of this manual ior a list of JRC ofﬁces.
I NOTICE
When you ﬁrst use this product. you may smell a strange odor. This odor is caused by voIaUIization of the varnish
solvent applied to the Hansfmmer. This is not a malfunction.
vi ,,
CO NT E NTS
SECTION 1: UNIT OVERVIEW .........................................
1.1 FUNCTION --------
1.2 FEATURES -------
1.3 UNIT CONFIGURATION
1,4 BLOCK DIAGRAM ............................................
1.5 OUTLINE DRAWING -------------------
SECTION 2: OPERATING CONTROLS ~~
2.1 FRONT PANEL ..........................................................................................
22 REAR PANEL .............................................
SECTION 3: INSTALLATION -----------
3.1 INSTALLATION LOCATION
3,2 INSTALLING THE RECE|VER .......................................................................
SECTION 4: OPERATING THE NRD-545 ------------------------
4.1 RECEIVING DIFFERENT TYPES OF SIGNALS
4.2 MEMORY OPERATIONS ~-
4,3 SCAN & SWEEP OPERA'ﬂONS ...................................................................
4.4 CLOCK & TIMER OPERATIONS ---------------------
4.5 MODIFYING OPERATIONS av USER SETUP
4.6 OPERATING THE NRD-54s FROM A PERSONAL COMPUTER ---------------------------- 24
SECTION 5: ADJUSTMENT AND MAINTENANCE ..................................................
5,1 ADJUSTMENT ...........................................
5.2 MAINTENANCE ---------
5.3 TROUBLESHOOTING ~
5.3.1 SIMPLE PROBLEMS -
5.3.2 MORE SERIOUS PROBLEMS ------
SECTION 5: CUSTOMER SERVICE
SECTION 7: OPTIONAL UNITS
7.1 INTRODUCTION -----------
7.2 REMOVING COVERS ----------------------------
7.3 REMOVING INTERNAL UNITS -
7.4 FASTENING COVERS -
SECTION 5: ABOUT DISCARDING THE UNIT ....................................................
5.1 DISCARDING THE UNIT ------------------------------
8.2 DISCARDING LITHIUM CELLS
SECTION 9: SPECIFICATIONS
LIST OF Jnc OFFICES ............................................................. THE END OF THIS MANUAL
awn—1.1.4
Explanation of Main Technical Terms
CPU --------------------- Central Processing Unit
DDS DirectDigitalSynthesizer
FET <- Field Effect Transistor
p|_|_ ---------------------- Phase Locked Loop
PPM --------------------- Parts Per Million
DSP -------------------- Digital Signal Processor
TCXO ........
- Temperature Compensated X'lal Oscillator
SECTION 1 NIT OVtHVItW
__________________.——————=———_—"
1.1 FUNCTION
effeCtive on noise having a comparatively wide pulse
The NRD-SAS is a DSP receiver that continuously covers
the 100 kHz to 29999999 MHZ range, The NRD-SAS can be
upgraded to cover the range 100 kHz to 1999999 MHz
range by attaching the CHE-199 wideband converter unit
(option). However, note that in this reception frequency
range, reception of some frequencies is prohibited.
widIhi
- Notch Filter
This nmch ﬁlter has sharp attenuating characteristics, and
greatly reduces beat disturbance adjacent to the desired
signal. The variable range is t 2.5 kHz. When notch
tracking is turned ON, the notch filter tracks within the
range rt 10 kHz even if the MAIN TUNING dial is
1.2 FEATURES turned.
(1) USP-BASED DIGITAL SIGNAL PROCESSING ~ PBS (Pass Band Shift)
In addition to the digital IF ﬁlter, circuits from the IF The center frequency of the digital IF filter can be
onwards process digital signals so that high~quality signals apparently shifted up or down so that disturbance signals
free from distortion can be played back. are pushed out of the band. The variable range is t 23
kHz,
(2) HIGH SENSITIVITY AND DYNAMIC RANGE - BWC (Bandwidth Control)
An RF amplifier with four pamllel»connected JFEI‘s and The pass band width of the digital IF ﬁlter can be
a double balanced mixer With quadruple-connected FETs continuously varied within the range ID Hz to 999 kHz,
provide high sensitivity and dynamic range. ' ECSS (Exalted Carrier Selectable Sideband)
When AM signals disturbed by an adjacent station are
being received, the disturbance can be removed by
selecting a sideband on the USB or LSB side that is not
front-end double-tuned circuit. This circuit attenuates subjetx to the disturbance ECSS differs from conven-
unwanted signals to greatly improve multi-signalcharacter- tional methods where disturbance is removed by a
istics, narrowband ﬁlter, and allows clear reception with little
(3) ELECTRONIC TUNING SYSTEM
Capacitor diode-based electronic tuning is used for the
deterioration in audio quality.
(4) DDS IC OPERATED HIGH-SPEED 1 HZ STEP
SYNTHESIZER (6) RTI’Y DEMODULATOR PROVIDED AS STAN-
One-chip DDS is used in combination with PLL to DARD
achieve high-speed I Hz step frequency selection, high C/N Shift width I70, 425 and 850 Hz, baud rate 37 to 75 baud
and overallsimpliﬁcationofcircuits, ITU-T No.2 code RTTY signals can be demodulated.
Demodulated output ca be displayed on a personal computer
(5) VARIOUS INTERFERENCE REJECTION display via the RS-232C interface.
' NR (Noise Reduction)
By enhancing signals having cyclic characteristics such as (7) PC-BASED REMOTE CONTROL
Personal computer remote control functions are provided
as standard. In addition to control and confirmation of
panels, 5 meter information can also be downloaded,
reception signals and attenuating mndom signals such as
noise. reception signals buried in noise stand out so that
they are audible,
- BC(BeatCanceler)
The Beat Canceler enhanced signals having perfeCt cyclic (8) INTERNAL CLOCK/TIMER
characteristics such as heat disturbance so that they are The builtain real-time clock and timer function can be
canceled. used to automatically turn the NRD-545 ON and OFF at
Voice signals are processed so that they are not judged to specified times. Up to 2] timer reservations can be set.
be cyclic signals and have no distortion. The Beat
Cancelcr is effective on multiple beam.
' NB (Noise Blanket)
This Noise Blanker is for pulsertype noise. Two blankets
are provided: NBI and NBZ. NBI is effective on noise
having a comparatively narrow pulse width, and N82 is
(9) moo-CHANNELS MEMORY CAPACITY
The NRD-545 has a IOOOAchanneIs memory capacity
which is backed up by a lithium cell.
(1 0) BUILT-IN SPEAKER
The built-in speaker allows satisfactory reception on the
NRD-545 body alone Those wishing even clearer reception
should use the NVA-319 external speaker (option).
(11)WIDEBAND CONVERTER (OPTION)
When the wideband converter unit CHE-199 (option) is
installed, you can receive with the range 100 kHz up to
[999.999 MHz. Note that reception modes from 30 MHz or
higher are limited to AM, FM and WFM, and that reception
of some frequencies is prohibited.
1.3 UNIT CONFIGURATION
1.3.1 STANDARD COMPONENTS
Table 1-1
Product Name Model Name Q'ty Remarks
Receiver NED-545 1
M-lype coaxial Plug MAP-5 l
RCA-type Plug AR-568M 5
Headphone Plug PJ-2272 l
Record Plug AP3 u l l I
Fuse MFélNRl 1 Glass. cylindrical lA
DC Power Cord 62CJD00127 l
MPKC0253I : For 120 VAC
AC POWer Cord MPKCOZSJI or MPKCOZS32 I MPKC02532 = For 220 VAC
Instruction Manual I
1 .3.2 OPTIONAL UNITS
Table 1-2
Product Name Mudel Name Applications and Outline
Wideband converter unit CHE-199 30 MHz ~ [999.999 MHz —I
TCXO CGD-l97 : 05 ppm
External speaker NVA-3l9 8 Q
Headphone ST-J 600 W dual—ear type
RS-232C cable 62CJD00350 For personal cumputer remote °°EIL°I_I
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(USE) (LSB)
When the reception signals are subject to beat disturbance
by an adjacent station, or when fading distorts voice signals,
try changing the setting of this button and receive again
according to the reception conditions. lfyou detune above 500
Hz with ECSS set to ON, the ECSS circuit will automatically
tum OFF.
Caution
1. Set the NOTCH control to OFF before using ECSS,
2. Make sure that the reception frequency is completely
tuning before ECSS ON.
3. if the signal is extremely small. or fairly large fading is
applied, ECSS may become unlocked. and beat may
occur instantaneously.
®AGC button
Use this button to turn AGC ON and OF. Press this button
once to turn AGC ON. and press it again to turn AGC OFF.
® NOTCH control
Use this control for adjusting the notch ﬁlter. When the
reception signals are subject to beat disturbance by continuous
carrier signals or simple signals such as telegraph signals.
press the NOTCH button (13 , and adjust this control to beat
disturbance until it is minimal.
Beat disturbance can be adjusted within the range 2 2.5 kHz
in 10 Hz steps. When you press the NOTCH control again in
this state. the red LED lights to indicate that notch tracking is
funCtioning. While notch tracking is functioning, the notch
filter will track within the range t 10 kHz even if the MAIN
TUNING dial is turned, and reception will be continued with
the disturbance signals suppressed. lf you detune above 10
kHz. the notch filter is automatically turned OFF
Interference signal
“359W“ Seleetlvlty attenuated by notch lllter
Interference slgnal
Figure 2-2 Operation of Notch Filter
®RF GAIN control .
Use this control to adjust the gain of the lst-stage lF in the
receiver and the gain of the [F stage in the DSP. Maximum
gain is achieved when this control is turned clockwise as far as
possible. Turning this control counterclockwise reduces gain.
Normally, use the NRD—SAS with this control turned clockwise
as far as possible.
This control does not function in the WFM mode.
®NOTCH button
Use this button to turn the notch ﬁlter and notch trucking
ON and OFF. When you press this button once. the notch filter
is turned ON. and the green LED lights. When you press it
again, notch tracking is turned ON. and the red LED lights.
‘When you press it again, the notch ﬁlter and notch tracking
both are turned OFF. and the LEDs go out
The NOTCl-l button does not function in the AMS mode.
When the notch ﬁlter is set to ON. reception noise may be
distorted. Be sure to set the notch ﬁlter to OFF when the
notch ﬁlter or notch tracking is not used.
®SQ LEVEL (squelch level) control
Use this control to eliminate noise in a no—signal state. The
further this control is turned to the right, the deeper the squelch
level becomes. Squelch will not open unless the signal is
stronger, lf you turn this control to the left as far as possible.
squelch remains open (squelch OFF) at all times. and sound
will always be output from the speaker. The LED to the left of
the control lights when squelch is closed
Noise is net output from the speaker when squelch is
closed.
031 NE LEVEL (NOlSE BLANKER) control
Use this control to adjust the sensitivity of noise blanket
operations. When there is a large amount of pulse~type noise.
the noise can be reduced by turning the noise blanker ON by
the NB button @ and turning this control. Turning this control
clockwise increases sensitivity and facilitates functioning of
the noise blanket. Find the optimum levcl based on the
reception conditions and the noise level.
Turning the NB LEVEL control clockwise too far may
cause distortion in the desired signal.
® RECORD lack
This jack is used to record reception content to a mpe
recorder The output level is ﬁxed regardless of the AF GAIN
control ® setting. The output impedance is 600 Ohms.
@ PHONES (headphones) lack
This jack is used for headphone output. When headphones
are used, output to the internal speaker and external speaker is
turned OFF. This is a munaural jack that outpus the same
signal as the LINE OUT R.
® POWER switch
When the POWER switch is in the ON position. the power
will turn ON and the NRD-545 will start operating. When the
POWER switch is changed to the TIMER position the timer
function will turn ON. Both the power and timer tum OFF
when the POWER switch is moved to the OFF position.
@ NB (noise blanker) button
This button is for operating the noise blanker Circuit. Each
press of this button toggles the setting between NBI, N82 and
OFF.
To return the CLOCK. TIMER ON and TIMER OFF
display to the frequency display, press either FREQ (fre~
quency) button ® or CH (channel) burton ®,
® FM/WFM button
Use this button to select the FM or WFM modes. Each press
of this button toggles between the FM and WFM modes. The
selected mode is displayed on the LCD.
The WFM mode can be seleCted only when the wideband
converter unit CHE-199 (option) is mounted.
Caution
If you select the FM mode without the antenna connected,
the amount of noise increased markedly compared with
other modes.
®NRIEC (noise reduction/beat canceler) button
Use this button to select noise reduction or the beat canceler.
Each press of this button toggles the setting between noise
reduction, beat caneeler and OFF. When this button is set to
noise reduction, the green LED lights. When it is set to the beat
canceler, the red LED lighu.
> NBI —- N82 > OFF
OFF
r Noise reductioane-at caneeler
When this button is set to NBl, the green LED lighs. When
set to NBZ, the red LED lights. N81 is effective is blanking
narrow width pulse noise such as ignition noise, and N82 is
effective in blanking wide width noise.
®A1T (attenuator) button
Use this button to input the 20 dB radio frequency attenuator
to the antenna input terminal. This option should be used if the
desired signal is being blocked by a very strong interference
signal. During attenuation, ATI‘ on the LCD lights.
@ DIMMER button
Use this button to adjust the brightness of the LCD panel.
Each press of this button toggles brightness between light and
dark.
C Light—-——> Dark
®CLOCK button
This button switches between CLOCK. TIMER ON and
TIMER OFF, Each press of this button toggles the setting
between, CLOCK. TIMER ON and TIMER OFF.
CLOCK - TIMER ON TIMER OFF
(green LED) (red LED)
When noise reduction is acrivated, the voice signal spectrum
is enhanced. random signals such as noise are attenuated. and
signals buried in noise are made to stand out so that they are
audible. How far noise reduction is activated can be adjusted in
the user setup. For details, see 4.5,
When the bent canceler is activated, signals having perfect
cyclic characteristics such as beat disturbance are canceled to
attenuate the beat disturbance. How far the beat canceler is
activated can be adjusted in the user setup. For details, see 4.5.
The NR/BC button does not function in the AMS, WFM
mods and ECSS ON.
®AMIAMS button
Use this button to select the AM or AMS mode. Each pras
of this button toggles between the AM and AMS modes The
selected mode is displayed on the LCD. Select the AMS mode
to listen (0 AM broadcasts in hi-ﬁ.
@ USB/LSB button
Use this button to select the USB or LSB mode. Each press
of this button toggles between the USB and 1.38 modes. The
selected mode is displayed on the LCD.
®CWIRTTY button
Use this button to select the CW or R'ITY mode. Each press
of this button toggles betWeen the CW and RTTY modes. The
selected mode is displayed on the LCD,
® NARROW button
Use this human to select the narrow bandwidth of the digital
IF ﬁlter, The selected bandwidth is displayed on the LCD. The
default for the narrow bandwidth can be set for each mode. Set
as follows:
Bandwidth
FUNC —— NAHR0w|—» setting —- ENTIkHz
Defauls are as follows:
CW, RTl‘Y 0 5 kHZ
AM 2.4 kHz
USB. LSB 1.8 kHz
Note: AMS, FM and WFM are ﬁxed to WIDE.
®lNTER button
Use this button to select the intermediate bandwidth of the
digital IF filter. The selected bandwidth is displayed on the
LCD. The default for the narrow bandwidth can be set for each
mode. Set as follows:
EandWldth
FUNC—> INTER |—> mung a
Defaults are as follows:
ENT/kHz
CW, RTTY 1.0 kHZ
AM 4.5 kHz
USB, LSB 2.4 kHz
Note: AMS, FM and WFM are ﬁxed to WIDE.
©WIDE button
Use this button to select the wide bandwidth of the digital lF
ﬁlter. The selected bandwidth is displayed on the LCD. The
default for the narrow bandwidth can be set for each mode. Set
as follows:
Bandwidth
FUNC —v WIDE —> 58m"? ——> ENT/kHz
Defauls are as follows:
CW, R'ITY 2.4 kHZ
AM 6.0 kHz
USB, LSB 2.7 kHz
Note: AMS. FM and WFM are ﬁxed to the maximum value
and can not he changed.
@ FREQ button
When you press this button, the LED to its left lights, and
you can set the frequency using the numerical keypad ®. To
return to channel setup. press this button again.
®LCDdispIay
The NRD-SAS uses a largesize liquid crystal display
(LCD)
35-1 355
Frequency display PBS display
35-2 35-3 354
Channel display 11m, display ch display
354 Frequency display: Displays the reception frequency
35-2 Channel display: Displays the memory channel
numberl
35-3 Time display: Displays the time and the timer ON/OFF
times,
35-4 BWC display: Displays the bandwidth of the digital IF
filter or the AGC discharge time constant.
35—5 PBS display: Displays the shift width of pass band
shift:
WIDE BAND :Lights when the wideband converter unit
CHE-[99 (option) is mounted.
A‘l'l': Lights when attenuator is ON.
AM : Displays the mode. One of CW. R’ITY. FM.
WFM. AM, AMS. USB or LSB is lit. USB or LSB
lights in addition to AM when ECSS is set to ON
in the AM mode.
FILTER :Displays the bandwidth of the digital IF filter.
One of NARROW. INTER and WIDE lights to
indicate that it is selected.
@ : Displays AGC. One of OFF. 1.2.14 and 5 lights to
indicate that it is selected. The relationship between
indications l to 5 and the discharge time constant is
as follows:
I: 0.04 to LAB seconds
2: 1.50 to 2.48 seconds
3: 2.50 to 3.48 seconds
4: 350 to 4.48 seconds
5‘ 4.50 to 5,10 seconds
CLOCK : Lights when the clock is displayed.
TIMER : Lights in the timer mode
TIMER ON : Lights when the timer ON time is displayed.
TIMER OFF : Lights when the timer OFF time is displayed.
SCAN START : Lights when the scan start channel is
displayed.
SCAN END :Lighrs when the scan end channel is
displayed.
SWEEP START : Lights when the sweep start frequency is
displayed.
SWEEP END :Lighrs when the sweep end frequency is
9”,
displayed.
RUN : Lights while scan or sweep is being executed. Blinks
when scan or sweep have been stopped.
MUTE: Lights when mute is applied, AF output is not
possible when mute is applied.
AS: Lights when the receiver is set to the mode for
automatically stopping scan or sweep by squelch
Operation. Blinks when scan or sweep has been
automatically stopped by squelch operation.
DC: Lights when the receiver is running on a DC power
supply.
REMOTE: Lights when the receiver is being remote»
controlled by a personal computer via the
RS~232C interface.
REVERSE: Lights when the polarity of demodulated signals
is reversed when the R'l'l'Y signal is being
received.
FUNCTION: Lights when the function (FUNC) keys are
used for input.
SIGNAL (5) METER: The received signal strength is
displayed on a scale of l to 9,
+20 dB to +60 dB.
Hysteresis is prOVided at the S meter
deflection boundaries.
The 5 meter can also be used for
displaying peak hold or displaying
level by movement of a single point-
er in the user setup. For details, see
4.5.
S meter deﬂection is no longer normal when AGC is set to
OFF.
®> UP, < DOWN button
These buttons function to increment and decrement the
frequency when FREQ button ® is selected. When CH button
@ is selected, these buttons function to increment and
decrement the channel. These buttons are auto repeaters. So.
the frequency or channel is continuously incremented or
decremented for the duration that these buttons are pressed.
® CH (channel) button
When you press this button. the LED to its right lights, and
you can set the channel using numerical keypad (3. To return
to frequency setting, press this button again.
®Numerleat keypad
The numerical keypad is used to set frequencies. channels,
tn
clock, and the timer,
®FUNC (function) button
Use this button when you are using the function bunons for
input. When you press this button, FUNCTION on the LCD
lights. Use of function buttons is automatically canceled if no
operation is ean'ied out for 15 seconds after pressing this
button.
Description of Function Buttons
(1) Setting user setup
Press the FUNC button and then ENT/kHz button @ to
enter the user setup mode.
(2) Saving memory channels
Press the FUNC button and then CH button ® to enter the
memory channel save/setup mode.
(3) Turning stereo reception ON/OFF in WFM mode
Press the FUNC button and then FM/W'FM button ® to
turn the WFM stereo mode ON and OFF.
In the stereo mode. WFM and S on the LCD light when
stereo is detected. S blinks if stereo cannot be detected at
this [llTIEt
(d) Setting the sleep timer time
Press the FUNC button and then CLOCK button (5 to set
up the sleep timer time.
(5) Transferring memory channel data to VFO
Press the FUNC button and then FREQ button ® to
transfer the content of memory channels to VFO.
(6) Selecting BWC change step (10 HleO Hz)
Press the FUNC button and then BWC button @ to
altentately select the BWC change step.
® MHz button
Use this button to set the frequency in MHZ steps using the
numerical keypad ® . Entered data is registered when you
press this button.
@ EMT/kHz button
Use this button to input the frequency in kHz steps, specify
the channel and adjust the clock and the timer settings using
the numerical keypad ®. Press this button to enter the input
data.
® CLR (clear) button
If you make an entry error while entering frequency.
channel. or time data using the numerical keypad @. press the
CLR button to erase the entered data and restore the pre-cntry
settings
®PBS (pass band shift) control
Use this button to change the center frequency of the digital
IF ﬁlter within the mnge 1- 2.3 kHz (in 50 Hz steps) with no
apparent change in the reception frequency. This acts to push
adjacent signals out of the signal band when the reception
signals are being disturbed by adjacent signals. The degree of
change is displayed on the LCD. In the USB mode, distur-
bance signals can be removed from the higher of the voice
signals when this control is turned counterclockwise from the
center position. Note that the high area of the desired signal
will be cut off at this time. in the LSB mode, the reverse is
true. This button does not function in the FM. WFM or AMS
modes.
_—_____________—
Recelver Selectlvlty
Ellmlnated
Interference
slgnal
nas ”55
Q l
When PBS control Is
turned counterclockwise.
Pas OFF
|_ Figure 2-3 Pass band shift operatlon
When there is no mdio interference, operate the receiver
with this control at the center (PBS OFF) position.
® FlNE control
This control generates 24 pulses per turn. These pulss can
change the memory channel. digital IF filter bandwidth‘ AGC
discharge time constant. user setups, etc. Turning this control
clockwise increases the amount proportional to the number of
pulses, and turning it counterclockwise decreases the amount,
1.1,
2.2 HEAR PANEL
® ANT Lo-Z (low Impedance) connector
Use this connector to connect to an antenna of low (50
Ohms) impedance in the HF hand.
To ensure optimum performance for the NRD»545, use the
best possible antenna.
® ANT SW (antenna switch)
Use this switch to selecr between low impedance (Lo-Z)
antenna and high impedance (Hi—Z) antenna inputs. Slide the
antenna switch to the antenna input in use.
©ANT HI-Z (high impedance) termlnal
Use this terminal to connect a high-impedance terminal in
the HF band.
@ LINE OUT R lack
This jack is for line output. The same signal as the signal
currently output to the RECORD jack on the front panel is
output from here.
®LINE OUT L jack
This jack is for line output. Output from this jack is possible
only during stereo reception in the WFM mode. In other
modes the same signal as LINE OUT R is output.
® EXT SP (SPEAKER) jack
Use this jack to connect an external speaker.
This jack outputs the same signal as the LINE OUT R ®.
(5D MUTE terminal
Use this input terminal for controlling the mute circuit of the
NRD-545 when it is used in combination with a tmnsmilter.
Grounding this terminal during transmission mules (disabled
AF output) the NRD-545
our: 9
m w... s. .. a...“ an...“
Nﬂm ll "WM.
@ oc our (no output) lack
l0.8 VDC is output from this jack. Permissible current is
about 30 mA.
Use the pin plugs AR—SGBM (provided) in jacks @ to 62.
®TIMER OUT terminal
These are relay contacts for controlling externally connected
equipment using the timer function.
M. a.”
- wnm tn- Kim" 1- on mam pow-r I: on).
® ® ® emneu (2) m1 (3) m connected.
- When the urn-- Is OFF (Man-545 pain" I. OFF).
eenum (I) lnd (2) III connected.
l l ' -conumeapacnyt.mntmumz4v.u
W q. a,
(common)
Never connect this terminal to the AC power supply.
When the timer function is OFF with “Z" in the user setup
N0.l3, relay contacts are connected in the following manner:
' When the squelch is open. contacts (2) and (3) are
connected.
- When the squelch is closed, contacts (1) and (Z) are
connected.
@ Rsvzazc connector
This connector allows the NRD-SAS to be remotely con-
trolled through a personal computer. Use the RS-ZSZC cable
(DSUB, ZS-pin, male-male cross-connection) to connect the
receiver to a personal computer.
63) DC POWER connector
This connector is for connecting a DC power supply.
Connect this connector to the DC pow/er cord provided with
this receiver. Be sure to provide a fuse (3A) on the power cord
between the receiver and the power supply when using other
power cords.
® Fuse holder
This holds the AC power fuse (1A).
®AC POWER connector
This connector is for connecting an AC power supply.
Connect this connector to the AC power cord provided with
this receiver.
®Voltage selector
Use this selector for selecting 100, 120, 220 and 240 VAC
as the power supply voltage. (For details on how to select the
power supply voltage. see 3.2.3.)
®WB ANT (wldeband antenna) connector
Connect the antenna (impedance 50 Ohms) for widehand
reception.
Jii,
SECTION 3
INSTALLATION
_______________——————————
3.1 INSTALLATION LOCATION
To ensure many years of optimum performance, place
your NRD-545 in a well-ventilated area and avoid places
that are exposed to direct sunlight, hot air from heaters, dust,
vibration, or moisture. Also. allow sufficient space between
the rear of NRD»545 and surrounding walls.
3.2 |NSTALLING THE RECEIVER
Before operating the NRD<545. the following procedures
should be followed. Connect the MID-545 as shown in
Figure 3-6.
3.2.1 ANTENNA CONNECTION
For optimum performance, an outdoor antenna should be
used. Use a 50-Ohm antenna which is suitable for the
reception frequency. Connect the antenna to the Lo—Z
coaxial connector on the rear panel. (Switch the ANT SW to
Lo-Z.)
If you are using 4-6 meters of vinyl-coated wire or similar
as a simple antenna. connect the antenna to the Hi-Z antenna
terminal on the rear panel. When using a simple antenna. be
sure there is sufficient space between the antenna and noise
sources such as compmers.
To receive wideband frequencies above 30 MHz, use a
wideband antenna (eg. a wideband discone antenna)
connected to the WB ANT connector 69 . (Note that
reception is possible only when the wideband converter unit
CHE-l99 (option) is attached.)
_—__—_’—————
Figure 3-1 Yagi Antenna
ﬁll—f—
NDR - 545A
Flgure 3-2 Long-wire Antenna
Figure 3-3 Wideband Discone Antenna
3.2.2 GROUNDING THE RECEIVER
Use the thickest possible copper wire as a ground line to
prevent electrical shock and related hazards. and to reduce
static interference from other equipment. Connect the
ground to the GND terminal on the rear panel.
i_
ever connect the earth lead to gas or electrical wire
piping. This is dangerous.
Figure 3-4 Connecting the Earth
3.2.3 CONNECTING THE POWER
When you are operating the receiver on a AC power
supply, connect the AC power cord (provided) to the AC
POWER connector @ on the rear panel, Likewise, when
you are operating the receiver on a DC power supply.
connect the DC power cord (prDVided) to the DC (13.8 V)
POWER connector® on the rear panel.
The AC power supply that can be used as the receiver
power supply is indicated on the packaging. Make sure that
the voltage of the power supply in use matches the voltage
value indicated on the voltage selector on the rear panel. If
you are operating the receiver on a different AC power
voltage. select the voltage closest to one of too, 120‘ 220 or
240 V, and set this voltage on the Voltage selector. Before
you select the power voltage, first turn the POWER switch
OFF, and then disconnecr the power cord from the ouzlet,
Make sure that the difference in voltages is within t 10% of
the voltage value indicated on the Voltage selector.
Example: ll7vV —> 120 V, 230V —* 240V
so! on male-no paw-l mug. nut-um
to m. smitten indium ay m. um: below.
Figure 3-5 Voltage Selection Procedure
A minute current ﬂows for clock backup even if POWER
is set to OFF. Be sure to remove the power cord from the
outlet when you are not using the receiver for a long
period of time. (When the power cord is removed, the
clock will not be backed up.) When using baneries as the
main power source. he sure not to allow the battery to
expire while connected power cord. (The backup DC is
Approx. 3 mi)
3.2.4 CONNECTING AN EXTERNAL SPEAKER
The NRD-Sds has a builHn speaker, An external speaker
can also be connected. We recommended using JRC's
NVA-3l9 (option) as the extemai speaker.
In the WFM or AMS mode, AF is output also from the
LINE OUT Ljack. To listen to this output at a loud volume,
connect a commercially available speaker with ampliﬁer to
this jack.
3.2.5 CONNECTING HEADPHONES
We recommend using JRC's ST-3 communication equip—
ment headphones (option). if you plan to use headphones
made by another manufacturer, make sure that the im—
pedance is within 5 to 32 Ohms.
mm
Ba
Mm nun:
9 @_—_ 1'po “curd-r. m. Nita-HS
madphones
_—_.—=i st 1
n... u
Enumal mum
Wu's-nu dllcnnl autumn
Low-impmunu lnltrtlu
(inun-d-L unlit-tn, v ai mum.)
m—zum
lnm
cant-l cabl-
rtnm output ._
Mm- lupin <_ V
um output can
@J”.,__J
Annrtnl utmm lwitch
Figure 3-6 How to Connect the External Terminals
SECTION 4
OPERATING THE NED-545
For the names of the various buttons and controls and
descriptions of their functions, see Section 2 (OPERATING
CONTROLS)
4.1 RECEIVING DIFFERENT TYPES OF
SIGNALS
The following sections describe the basics of receiving
signals with the NERD—545.
®®®®®? £19®
4.1.1 PRELIMINARY SETTINGS
After all antenna and power connections have been made,
set the POWER switch to ON and set the receiver controls
and buttons as described below.
LOCK button @: OFF
AF GAIN control (2 : Full counterclockwise position
RF GAIN control (B: Full clockwise position
TONE control ®z Center position
SQ LEVEL control ®* Full counterclockwise position
PBS control @: Center position
A‘l‘l’ button ®; OFF
4.1.2 SETTING THE FREQUENCY
There are three different ways to set the frequency of the
NRD7545.
. Method 1: Using the MAIN TUNING DIAL®
The MAIN TUNING dial k capable of continuously
tuning over the entire reception frequency range in 1 kHz,
[00 Hz, 10 Hz and 1 Hz steps. When the MAIN TUNING
dial is turned, the lower digit will be set to 0 Hz.
For example, when the setup is set to 100 Hz, the lower
digit of 10 Hz and l Hz is set to 0 Hz. Normally, the MAIN
TUNING dial ® is used to change frequencies within a
single 1 MHz band.
0 Method 2: Using the UP button (>) and DOWN
button (<) ®
Before you use these buttons. set FREQ button ® to ON.
The frequency can be contiruously incremented or decremA
ented at high speed at the step of the currently selected digit
with the auto repeat function when the UP or DOWN
buttons ® are pressed. This method is useful when
searching over a relatively wide range of frequencies.
0 Method 3: Using the numerical keypad (3
There are two different ways to enter frequency data
through the numerical keypad These methods differ accord-
ing to the frequency unit (kHz or MHz). In the following
example. a frequency of 123456 MHz is entered.
(l) Ifthe unit is kHz. enter the following sequence:
IL2_ 3 4 ls - 6 ENT/kHz
(Z) If the unit is MHz. enter the following sequence:
I 2 - 3 l4 5 6 MHz
If you accidentally enter the wrong sequence, press the
CLR (clear) button @ and then reenter the frequency. The
CLR (clear) button @ can be used to clear the entered data
and restore the ore-entry frequency as long as the ENT/kI-Iz
button @ or MHz button ® has not been pressed.
The numerical keypad cannot be used to enter the I Hz
digit. This digit is always set to 0 Hz.
Special Operation
Changing the Reception Frequency Flange
Normally. tuning is set to receive from 100 kHz. However,
if you turn the power ON with the ENT/ki-Iz button @ held
down, tuning is possible from IO kHz. Note that reception
functions are not assured within the range 10 to 100 kHz.
To return the turning start point to [00 kHz, repeat the same
operation.
4.1.3 RECEIVING SSB SIGNALS
The frequency displays LSB and USB are both sup-
pressed carrier frequencies.
Suooressed carrier frequency
LSB USE
In addition to the settings described in section 4.1.1, set
Ihe following controls as described below,
USB/LSB button @: Press to select USB or LSB mode
INTER button (3; Press this button.
AGC button 63): Press to select ON.
AF GAIN control ®: Set the desired volume.
Reception frequency: Set the desired frequency.
Slowly tune the MAIN TUNING dial © until the $58
signal can be clearly heard.
Special Operation
Selecting the Mode
Normally, the USB/LSB and CW/RTI‘Y modes cannOt be
selected when you receive frequencies 30 MHz or higher
with the wideband converter unit CHE-[99 (option)
mounted. You can select the USB/‘LSB and CW/R'ITY
modes by turning the power ON with the USB/LSB and
CW/RTI'Y buttons held down. Though these modes can be
selected. but reception functions are not assured. To reset
the NRD-SAS, repeat the above operation.
4.1.4 RECEIVINGACW SIGNALS
In addition to the settings described in section 4.1.1, set
the following controls as described below.
CW/‘RTTY button GD: Press to select CW
WIDE button (3: Press this button.
AGC button ®z Press to select ON.
AF GAIN control®z Set the desired volume.
Reception frequency: Set the desired frequency.
Use the MAIN TUNING dial ® to make adjustments so
that the CW signal is received and the AF (audio) output
signal is set to approximately 800 Hz. (If the demodulated
tone is at 800 Hz in CW mode. the local reception frequency
and the remove transmission frequency will be zeroed in.)
Normally. the offset frequency of BFO is set to +800 Hz.
However, this frequency can be set freely within the range
-2550 to +550 Hz in I0 Hz steps. For details on how to set
the frequency range. refer to item 1.5.
If you press the INTER button ® or NARROW button ®
while signals are being received. the IF filter bandwidth
narrows, and radio interference and noise are eliminated so
that signals can be clearly received.
4.1.5 RECEIVING AM SIGNALS
In addition to the settings described in section 4.1.1, set
the following controls as described below.
AM/AMS button ®z Press to select AM
INTER button @: Press this button.
AGC button (13): Press to select ON.
AF GAIN control ®: Set the desired volume.
Reception frequency: Set the desired frequency.
If there is disturbance, press the ECSS button ® to select
whichever of the USE or LSB signals that is free from
disturbance. To listen to medium-wave broadcasts in hi-fi.
selecr AMS using the AM/AMS button ® . In the AMS
mode, you cannot change the bandwidth of the IF filter.
Also. if the 5 meter display blinks when the NRD-SAS is set
to the AMS mode, return the NRD<545 to the AM mode.
In the AM/AMS modes, changing of the AGC discharge
time constant is disabled.
4.1.6 RECEIVING R] Y SIGNALS
The frequency display is the center frequency between a
mark signal and a space signal.
CenIsrlrequency
Space Mark
Shin width t 55 Hz
In addition to _the settings described in section 4.1.1, set
the following controls as described below.
CW/RTTY button ©: Press to select R‘l‘I‘Y
INTER button ®z Press this button,
AGC button ®1 Press to select ON.
AF GAIN control ® : Set the desired volume.
Reception frequency: Set the desired frequency.
TONE control Q): Center position
When the center frequency of the transmitted signal
matches the reception frequency, the center frequency for
AF (audio) output will be 2210 Hzt
Set as follows according to the type of RTTY signal:
(I) Set the RTfY baud rate according to item 4.5. Set to
45.5 baud in the case of amateur radio.
(Set the display to 45.)
(2) Set the RTTY shift width according to item 45. Set to
170 Hz baud in the case of amateur radio.
(3) Set the R'ITY polarity as described in 4,5. In the case
of amateur radio. the mark frequency is the higher of
the reception frequencies, and the space frequency is
the lower. In the case of commercial use R‘I‘I‘Y
signals. the relationship between mark and space
frequencies is inverted to that for amateur radio. (This
conforms to Standard ITU~R Rec. 246-1) The NRD-
545 takes the higher of the reception frequencies as
the mark frequency and the lower as the space
frequency.
Accordingly, set the RTTY polarity for amateur radio
to “normal.“
(4) Set the output selection of the RTfY demodulation
sign as described in 45. Set so that it is output to the
personal computer on the RS-ZJZC line,
(5) When you have ﬁnished setting the above, receive
RT'TY signals and turn the MAIN TUNING dial® so
that the LED at AGC T above the FINE control ® is
brightest and lighs red. At this time. make sure that
the BWC LED also lights red. If it does not, the shift
width of the RTTY signals currently being received
may not be matching the preset shift width.
(When the AOC T or BWC green LED is lit, so, be
18
sure to set so that the green LED is out.)
(6) Next, fine adjust the TONE control ® to the left and
right of the center position, so that the BWC LED is
brightest and lighs red. (In the RTTY mode, the
TONE control doubles as a fineaadjustment control
for the R'ITY demodulation filter. Turning this control
changes the center frequency of the space ﬁlter for
R‘I‘I‘Y demodulation. Normally. set this control at the
center position for use.)
(7) The above operation demodulates RTTY signals and
outpuLs the demodulated signal to the RS-232C line,
(8) To display incoming signals on a personal computer
via the RS—ZBZC line, a control program is needed.
The computer control software that we have provided
you contains a control program
4.1.7 RECEIVING FM SIGNALS
The frequency indication is the nonemodulated carrier
wave frequency.
Non~modulated carrier wave frequency (to)
At loose modulation
* SkHl lo O-5kHl
In addition 10 the settings described in section 4.1.1, set
the following controls as described below.
FM/WFM button @: Press to select FM
AF GAIN control ® : Set the desired volume.
Reception frequency: Set the desired frequency.
FM signals having a maximum frequency deviation of i
5 kHz can be received. in the FM mode, selection of the [F
filter bandwidth and changing of the AGC discharge time
constant are disabled.
in the WFM mode. WFM signals having a frequency
deviation of t 250 kHz can be received. This mode can be
selected only when the wideband converter unit CHE-199
(option) is mounted.
Special Operation
Stereo Reception in WFM Mode
The NED-$45 enters the stereo mode and S lights on the
LCD if you press the FUNQ and buIIon. s blinks if a
stereo signal is not detected at this time. Repeat the above
operation to reset the stereo mode.
4.2 MEMORY CHANNEL OPERATIONS I‘FUNC] CH . Then, press IENTkHz @ to save the setup
NRD-545 has 1,000 memory channels for saving fre- in memory.
quency. mode, IF filter bandwidth. AGC, ATI' and tuning
step setups. The timer ON/OFF times can also be saved to 4.2.3 CHANGING MEMORY INFORMATION
memory channels 0 to l9. Setups saved to memory channel (I) Set the CH (channel) button ® to ON, and select the
are backed up by a lithium cell. channel number.
(2) To make changes in the setting use, the MAIN TUNING
4.2.1 SETTING MEMORY CHANNELS dial to adjust the frequency, mode, IF filter bandwidth.
To set a channel, press the CH button ®. A‘lT, AGC. tuning step or timer ON/OFF time.
0 Using the FINE control @ (3) Press m ICH ENT/kHz to save the change to
Press the CH SEL button© , and then turn the FINE control memory.
@ to increment or decrement the channel until you reach (4) Or. select the channel number by using the FINE control
the desired channel. @ or by using UP and DOWN buttons ® after pressing
0 Using the > UP, < DOWN button 13 FUNC m . Then. press @ to save the
Press these buttons to increment or decrement the channel . change in memory. To make changes using the numerical
until you reach the desired channel. keypad, follow the procedure for (3) in item 4.2.2.
0 Using the numerical keypad ®
In the following example. enter the following sequence to 4.2.4 ERASING MEMORY CHANNEL INFOR-
enter channel 999: MATION
9 I [2] Li] ENT/kHzi In this example. enter the following to erase information
If a channel that is not set to memory is entered. “ ------- for memory channel 999:
will be displayed on the frequency display on the LCD, FUNC| CH m 9 9l ENT/kHz iCLRI
You can also emse information from memory channel
even if you press the CLR button @ after you have set the
channel using the FINE control ® or UP and DOWN
buttons ® after pressing FUNCI |CH .
SpecIaI Operation
You can return memory channels and user setups to their
defaults by turning the power ON with the CLR button ®
held down.
4.2.5 USING MEMORY CHANNELS FOR SIG-
NAL RECEPTION
Set the CH (channel) button @ to ON, and set the desired
channel number. When the channel number is set, the
information saved to that memory channel is displayed on
4.2.2 SAVING TO MEMORY the LCD, and reception is possible in this state. You can also
(l) Turn the FREQ (frequency) switch ® ON. fine~adjust the frequency using the MAIN TUNING dial ®.
(2) Set the frequency, mode. IF filter bandwidth, ATI‘, AGC,
tuning step and timer ON/OFF time to save to a memory
Special Operation
To transfer memory channel information to FREQ (VFO),
channel
(3) Input the following on the numerical keypad to save to press FUNC button®and then the FREQ button@.
memory channel OOI:
IFUNCI CH 0 o lillENt/knzl 4.3 SCAN & SWEEP OPERATIONS
This recalls the presentsetup in memory channelOOl. "Scanning" is a function for automatically scanning
Then, press ENT/kHz @ again to save the setup made in between specified channels. “Sweep" is a function for
(2) above. automatically scanning between speciﬁed frequencies.
(4) Or, select a memory channel by using the FINE control@
or by using UP and DOWN buttons ® after pressing
19
4.3.1 CHECKING 81 SETTING THE SCAN START
AND END CHANNELS
O SCAN START: Channel number at which scan is started
by the scan function
0 SCAN END: Channel number at which scan is ended by
the scan funCtion
Press the SCAN button and select SCAN START and
SCAN END. When SCAN START and SCAN END are
selected, the previously set channel number and the infor-
mation saved to that channel are displayed on the LCD, and
reception is possible using that information.
To change a channel number, select SCAN START or
SCAN END, and set the channel according to the descrip-
tion in “4.2.l Setting the Channel.” When the channel is
changed, the neWIy set channel number and the information
saved to that channel are displayed on the LCD, and
reception is possible using that information
Channel between the SCAN START and SCAN END
channels to which data has not been saved are skipped.
To cancel the SCAN mode. press any of CH, FREQ.
SWEEP, CLOCK and CLR buttons as required.
4.3.2 CHECKING & SETTING THE SWEEP
START AND END FREQUENCIES
O SWEEP START: Channel number at which sweep is
started by the sweep function
. SWEEP END: Channel number at which sweep is ended
by the sweep function
Press the SWEEP button ® and selecr SWEEP START
and SWEEP END. When SWEEP START and SWEEP
END are selected. the previously set frequency Is displayed
on the LCD. and reception is possible at that frequency.
To change a frequency, select SWEEP START or
SWEEP END, and set the frequency according to the
description in “4.1.2 Setting the Frequency" When the
frequency is changed, the newly set frequency is displayed
on the LCD, and reception is possible at that frequency.
To cancel the SWEEP mode, press any of CH, FREQ
SWEEP, CLOCK and CLR buttons as required.
4.3.3 EXECUTlNG SCAN OR SWEEP (RUN)
lfyou press the RUN button® when the SCAN button.
is pressed, and SCAN START or SCAN END Is displayed,
scanning is executed from the start channel number.
Alternatively, if you press the RUN buuon ® when the
SWEEP button ® is pressed, and SWEEP START or
SWEEP END is displayed, the sweep is executed from the
start frequency. The frequency step of the sweep is the same
as the Step selected onithe MAIN TUNING DIAL (9),
When the RUN button (I) is pressed, the Ieners ”RUN"
light on LCD, and the letters “START" or "END“ disappear.
To pause ascan or sweep, press the RUN button ® again.
During a pause, the “RUN" display blinks. To resume the
scan or sweep. press the RUN button ® again. The scan or
sweep is resumed from the channel number where the scan
or sweep was stopped.
The scan speed can be set to within the range 0.3 to 5
seconds/channel. and the sweep speed to within 0 05 to 0.5
seconds/step. For details on how to set these speeds, see
“4.5 Modifying Operations by User Setup."
If you press a key on the numerical keypad during
scanning that corresponds to a group that you want to scan.
scanning is carried out within the group that you specified.
For example, if you enter "0“, channel 0 and 49 are set as
the SCAN START and SCAN END, respectively.
Table 4—1 shows the correspondence between channel
numbers assigned to a group and the key on the numerical
keypad for entering that group.
However, when all the channel numbers are not registered
in a group. memory scanning terminates when that group
number is selected,
Table 4-1 Group Channel List
f— .
Group Channel numbers Numerical Keypad
Keys to Enter
1 0~49 0
2 50~99 l
3 [00449 2
4 ISO-199 3
5 200—249 4
6 250-299 5
7 300-349 6
5 350-399 7
9 400~449 8
10 450-499 9
ll 500-549 FUNC+0
[2 550~599 FUNC+I
13 600-649 FUNC+2
[4 650-699 FUNC+3
Is 700449 FUNC+4
l6 750—799 FUNCvS
17 800-849 FUNC+6
I8 850~899 FUNC+7
19 900—949 FUNC¢8
20 950~999 FUNC+9
If you press a key on the numerical keypad during a
sweep that corresponds to a group that you want to sweep.
the sweep is carried out within the group that you specified.
Table 4.2 Group Sweep List
Grottp START Frequency END Frequency Step Bandwidth Mode
0 2.300MHz 2.495MHz IOOHZ WIDE AM
i 3.900MHZ 4.000MH1 lOOHz WIDE AM
2 4.750MHz 5 OSOMHZ IOOHZ WIDE AM
3 5.950MH1 6.200MHz IOOHZ WIDE AM
4 7. lOOMHz 7.300MH7. IOOI-Iz WIDE AM
5 9.500MI-Iz 9.900MH1 IOOHz WIDE AM
6 _ 11.650MH1 [2.050MHZ lOOHz WIDE AM
7 13.600MHz [IBOOMHZ IOOHZ WIDE AM
8 15. IOOMHZ IS.600MI-'Iz lOOHz WIDE AM
9 17.550MHz 17.900MHZ JOOHz WIDE AM
4.4.1 DISPLAYING AND SETTING THE TIME
Table 4-2 shows the correspondence between sweep
frequencies assigned to a group and the key on the
numerical keypad for entering that group You can also
change the setups in Table 4-2.
How to Change the Setup
(1) Press the SWEEP button ®.
(2) Press the CH SEL button @. "—" or the group number
is displayed in the BWC display area. When you enter
a group number (0 to 9) whose setup you want to
change on the numerical keypad, the indicated group
0 CLOCK (TIME): Time such as LOCAL time
OTIMER ON: Time that the receiver power turns ON by
the timer function
0 TIMER OFF: Time that the receiver power turns OFF by
the timer function
Press the CLOCK button ® to select one of CLOCK,
TIMER ON and TIMER OFF, When one of these is
selected. the selected time is displayed cm the LCD. Though
the reception frequency is not displayed at this time,
number lights. reception at the frequency that was set before the CLOCK
(3) Enter the START frequency and press ENT/ki-lz button (3 was pressed is possible. Also, note that the
button @. reception frequency cannot be changed,
(4) Enter the END frequency. and press ENT/kHz button To change the time, select the time type with the CLOCK
@. button @. and enter the time using the numerical keypad.
(5) Set tuning step, bandwidth and mode, and press For example, to set the correct time 13:23 (hours:
ENT/kHz button 61). minutes), enter as follows:
If signals are received during a scan or west) and squelch
opens when the AS (auto stop) funetion is set to ON. the
scan or sweep is automatically paused. This pause time can
be set to Within 0 to 10 seconds. The scan or sweep is
rsumed when the preset pause time has elapsed. (However,
scan or sweep remains paused when the pause time is set at
0 sec while the squelch is open.) The AS display blinks
during the pause. For details on how to set the AS function
and the pause time, see “4.5 Modifying Operations by User
Setup,"
During a scan or sweep, BWC and ECSS do not operate.
4.4 CLOCK 81 TIMER OPERATIONS
The NRD-545 has a built—in clock and timer function,
This function allows you to turn the NRD—SJS ON and OFF
at preset times. Relay contacm for simultaneously control-
ling external equipment are also output to TIMER OUT
terminal (3 of the rear panel.
izl34
Then. press the ENT/kl—lz button @ . During entry of the
time, the time display blinks,
When the time is displayed. blinking of the colon “:" for
delimiting hours and minutes on the LCD can be stopped.
For details on how to set this, see "4 5 Modifying
Operations by User Setup,“
2.1
Spe ‘al Operation
You can display the second digit by turning the power ON
with the CLOCK button (5 and the ENT/kHz button 63) held
down simultaneously To cancel display, repeat the above
operation.
4.4.2 ADJUSTING THE CLOCK SECOND SET-
TING '
Press the CLOCK button @ , and select CLOCK. If you
press ['] button (3, the colon blinks at high speed. Ifyou
set the exact time, for example. matched to a radio time
signal, and press the ENT/kHz button ®, the second digit is
set to “00",
4.4.3 USING THE TIMER FUNCTION
21 timers, FREQ (VFO) and memory channels 0 to 19.
can be set.
The example used {or the timer function assumes that
reserved recording is earned out under the following
conditions:
Reception frequency: 12.3456 MHz
Recording time: From [9:10 to 20:20 LOCAL time
First. connect a tape recorder to the NRD-Sds as shown in
the Figure 4-1.
0 Setting procedure
I. Set the CLOCK time to LOCAL time.
2. Set the TIMER ON time to 19:10.
3, Set the TIMER OFF time to 20:20.
4, Set the reception frequency to 123456 MHz.
Set the mode. iF ﬁlter bandwidth and MT if neces-
sary.
5. Set the POWER switch (5 to the TIMER position. The
timer function is Started at this moment, The CLOCKr
time is only displayed on the LCD for about 15
seconds, and then the time display in the LCD
disappears. (To resume the time display, press the
CLOCK button and the time will be displayed for
another 15 seconds.)
6. This completes the operation.
When the timer ON time 19:10 is reached. the
NRD-545 turns ON. the reception frequency, mode.
bandwidth, AGC and ATP information that were set
above are displayed on the LCD, and recording at that
reception frequency is started. When the timer OFF
time 20:20 is reached, the NRDv545 tums OFF and
recording stops.
rape recorder
(Set In moordlw mode.)
Elia
COM-cl
lo tn. ltn- a!
. mlcrophotn
Q Q lnDuL
con-net by or. ptug rpmvtaaa).
. ii ” *
Conn-ct It: PAUSE mmtmt
mu out
' \_4_J mu m m
©1230)
(an) in connected during or. limit ON mm.
mm at- comical-d aunng nu limlv OFF time.
Connect In.“ tumlnals aeeetatng to the ape recorder you a" using.
Figure 4-1 Connectlng the Tape Recorder
4.4.4 SAVING THE TIMER TIMES TO MEMORY
CHANNEL
You can save timer ON/OFF times and memory channels
0 to 19 to turn each channel ON and OFF at the timer times
saved to memory channel. Timer ON/OFF times cannot be
saved to memory channels 20 to 999, (Note that operations
on these channels are possible using the FREQ (VFO)
timer.)
When the preset timer ON time is reached, the NRD—545
turns ON, and reception is started at the selected channel.
(The timer does not function without channel memory
presetting.)
. Setting procedure
[. Select the desired channel to save information to.
2. Set the TIMER ON time.
3. Set the TIMER OFF time.
4. Set the POWER button to the TIMER position,
5. This completes the operation.
Different times can be set to each of memory channels
0 to 19,
When the preset timer ON time is reached, the
NRD-SdS turns ON, and reception is started at the
selected channel.
While the timer is operating. no change can be made to the
CLOCK, TIMER ON, and TIMER OFF settings.
Moreover, only the TIMER ON/OFF times can be
displayed in the LCD.
4.4.5 SLEEP TIMEFI OPERATIONS
When the time speciﬁed by the sleep timer has elapsed.
the NRD-54S automatically turns OFF. The sleep timer time
can be set to within the range 0 to 180 minutes.
0 Setting procedure
t Press the FUNC and Ictocr< keys in that order
2. Enter 1 8 0 on the numerical keypad, and press
the ENT/kHz button @t (This sets " 1 wt)
3. Set the POWER switch to the TIMER position.
4. This completes the operation.
The NRD-SAS oven-ides the TIMER ON setting (see
section 4.4.3) and turns the power OFF when the sleep
timer reaches 0 min (OFF).
4.5 MODIFYING OPERATIONS BY USER
SETUP
The user can change the setup (user setup) of some
operations. Follow the procedures below to modify opera-
tions by user setup:
(1) Call up the user setup mode.
To enter the user setup mode, press the
ENT/kHz buttons. in that order.
The user setup number is displayed blinking on the LCD
channel display (35-2). and the user setup information is
displayed on the frequency display (35-1).
(2) Select the user setup number.
You can change the user setup numberdESplayed blinking
on the LCD channel display (35—2) by turning the FINE
control 69 . Change the user setup. Select the desired
number, and press the ENT/kHz button G1) to register the
number. Next. the number of the user setup information on
the frequency display (SS-l) blinks
(3) Change the user step number.
The user setup information on the Frequency display is
blinking. Change the information by turning the FINE
control ®. For details on user setup information, see Table
4-3.
(4) Register the user setup.
To register the new user setup information that you made
in step (3). press the ENT/kHz button ®.
The user setup number on the channel display blinks
again. To set other items. repeat steps (2) onwards. If you
have no other items to setup. press the CLR button (12) to quit
the user setup mode,
Special Operat n
You can return user setups to their defaults by turning the
power ON with the CLR button @ and CH button ® held
down. User setups saved to memory channels are held as
they are.
Table 4—3 shows a list of user setups.
Table 4-3 Llst of User Setups
' Default
Number hem Dammit)" Selim:
i I N: “1"an 0! i Hz not Mada la Inning sup
iirwuenw less mm no Mm) 1: I H: added In tuning 51:1) -
z w kn; tum"; o: to IcHz no! added is mmnﬂ slev -
("ﬂuency is“ than 30 MHz) 1” [0 kHz added to lumnl xlep
J lkatuntng o Ikﬂzluning step -
(lrequmcy Ia; lhm Jo MHx} t. 5 kHz tum; mp
2-515 kHltunln‘slep
3 9 kHllullmgSltp
4 too rt; lumng rm. AM 0: too Hz not was“, mmnxxlcp .
frequency as Mn; or more) l. mu Hz added “7 mm; step
t s 5 LHLtumng a. s kHztunt/lg step -
(nmmq 10 MH; or more) I: e Ls kHL tuntnx Step
2. 9 kHz lunilll “W
6 10 kHz DAN!!! 0 ka Inning step ‘
2.5 kNlIumng step
0 ml Inningxlep
J. Li kHz mm"! 115?
4. 30m: Iumnixlcp
5: 50 1441 tuning step
7 Automxllc wlcsltun of mm"; DOFF
step ((requzncy no MHz or ION _
more
A Number of pulses 0! MAIN 0: I” pulsa’mm '
TUNING dial oowtssnum
ZSOpulsu/mrn
9 s METER Inﬁicﬂltun o: Stnsie display
1. Bzrdtxpliy '
Z. Yuk hold displly
to new tune more
I'ON -
II Sean mm slop morr
LON -
IZ anmlen channel skip 0: OFF dunng Scanning
r: on dunng sunning -
IJ Ttmer telly opzrntmn 0‘. OFF u l“ ltmu '
I: on n all "me
1: Pmponionam m squelch
II BFO aiistl frequency 4550 H1. (0 ~2550 Hz (10 HI. imp!)
. we m -
iS RTTY bxud rate 37 to 75 him]
15 mu (45 as baud; '
i5 RTTY xhtil width ”OH: '
IZSHL
350k]:
I7 RWY pulinly O Revisit:
| Numul -
I3 555 display (mummy 0 Display min
1 Local Shift '
19 Blinktngcploninltmunlisplay “OFF
I. ON -
20 Sum mm: in ms menus/chum]
0 S “semis/channel '
2I Swttp ttme u as :ueonb/xtcp~ as Seconds/m1»
o as xecondxmsp -
12 Scan Auto Hop hm: 0. 0 w in mounds ii) 5 second step)
I' Jsectmth '
u RTi'Ytlemndulzttonstg/tal more
nulpul LON '
u hip-n mmng errmtt a has
I: Use -
LS RTI'Y mm“ on was: 0' OFF
l. ON '
Table 4—3 (continued)
Number tum Dumpucn 5mm;
16 am am dually n- Spue display
1 - dlsplly -
17 None {common mod: 0 Lin: enhancer '
t INVALIDAT'E
0 MAIN TL'Nth dial lucked
l. All ﬁlls and button) locked
a (mo (el‘lect) to 0.0155 (not client)
23 Panel lock
29 Nnix mtucnon (mum.
0.0050 '
so But nastier lunmon om (ml effect) In cums (effect)
pom '
11 Citing: squelch LED timing 0- who whenxqueldt u closed
t Lights when squelch l5 open
JZ Digiul lF tum lllenlnltﬂn OSHARP -
Kluge l‘ Loose
If you set user setup 7 to “l" (automatic selection of
tuning, step ON), the frequency step is automatically selecred
as shown in Table 44 at reception frequencies 30 MHz or
higher.
Table 4-4 Automatic Frequency Step Selection Llst
Frequency l Step Frequency Step
30- SOMHL leHz 170— ZZSMHI SOkHz
50~ 54MH1 ZOkHz 225~ 4303‘le 12.5kHz
54- 76MHZ leHz 430- 450MH2 ZDkHz
75~108MH1 SOkHz 450~ 470MH1 12.5kHz
lOS~l42MHz ZSkHz 470— 770MH1 SOkHz
I42-lA4MHz lOkHz 770~1000MH2 12.5kHz
144-lA6MHz ZOKHZ lOOO—ZOOOMHZ ZOkHz
|46~l7OMHz IOkHz
4.6 OPERATING THE NED-545 FROM A
PERSONAL COMPUTER
The NRD-545 is standard-equipped with an RSAZJZC
interface. This allows various controls to be performed from
a personal computer.
Use the SZCJDOOJSO RS»232C cable (option) to connect
your computer with the NRD-SAS. Use a commercially
available RS-ZSZC cable (cross connection, DSUB-ZS pin
connector. male-male connector).
PIS-232C cable
Computer
Figure 4-2 Connection with a Personal Connector
4.6.1 Setup
The first step is to enter communication parameters for
the computer.
Enter the following terminal parameter settings.
Communication rate: 4800 bps
Data length: 8 bits
Stop bit: 1 bit
Parity: None
X pammeten None
This completes the preparations for computenbased
control of the NRD-SAS.
4.6.2 Description of control commands
The format of commands for controlling the NRD-SAS is
as follows:
lcontrol item control mformationl CR
Enter one or two alphabet chomcters as the control itemt
Though the length of the control item varies according to
the control item. use numbers 0 to 9. “CR" stands for
Carriage Retum, and is used as the delimiter. The following
describes each of the items,
To remote control the NRD-SAS from a personal com-
puter, first issue the “HI" command to set computer control
ON. When control is ON. REMOTE on LCD ® and the
LED for the LOCK button ® light, and all buttons and dials
(excluding the POWER switch) are electrically locked.
To restore operations on the NRD-Sdi front panel. issue
the “H0" command. Computer control of the NRD-545 can
be turned OFF even when the POWER switch on the
NRD‘SAS is turned OFF. The current status is reported when
O "H" Turning computer control OMOFF
Command
Description
”CR Status report “H0" CR or “H1 " CR
“HO“CR Computer control is turned OFF.
“HI"CR Computer control is turned ONi
Command i Description
“El "CR i Write to channel
When command “El" is send after the status of the selected
channel is changed by a command. the information of the
channel is written to memory channel,
0 “F": Set frequency
0 “A": Set ATT . _
Command Description
Command DcSCﬁPUOH “F"CR Current status report
“MHCR A1—1- OFF “FOOOOI ooooomtt Set to 100 kHz
«A l"CR A'rr ON “F1999999999"CR Set to 1999999399 kHz
’0 “G": Set AGC
0 “B": Set iF bandwidth A _
Command , Description
Command Description “GO“CR ON(I S)
“B0"CR WIDE “GI"CR 0N(iOOmS)
“Bl"CR lNTER “GT'CR OFF
“B2"CR NARROW “G3ccc"CR ON (Time : ccc x 20 mS) ccc: 002
O “C": Set memory channel and automatic response 0 I": Turn receiver setup status output ON and OFF
Command Description Command Description
“COCO"CR Set channel 0 “l"CR Output ON (output only once)
i [ “lo"CR Output OFF
"C999"CR Set channel 999 "l l “CR Output ON (output continuously)
Automatic response from receiver
Response Description
“COCO"CR Written to channel 0
“C999V"CR Not written to channel 999
0 "D“; Set mode
Command Description
“DO"CR R'iTY
“Dl"CR CW
“DZ"CR USB
“DTCR LSB
“DA"CR AM
“D5"CR FM
“D6"CR AMS
“D7"CR ECSS -— USB
“D8"CR ECSS — LSB
“D9"CR WFM
This command is functional even if command “H1" is not
sent
When output is set to ON. REMOTE on the NRD-SAS LCD
lights. and the setup status is output to the personal computer
in the following Format,
Output | Description
“lahdfg"CR | Settings output
l: Header code
n: Attenuator. 1 digit (0, l)
b: IF Bandwidth, 1 digit (0 to 2)
d. Mode, 1 digit (0 to 9)
f: Reception frequency. lO digit (0000100000 to
1999999999)
g: AGC, 3 digit (000 to 255) 000: OFF
255 x 20 m8 : time
If the settings on the panel are changed while output is ON,
the changes are output to the computer in the format shown
above When output is turned OFF, REMOTE on the NRD-SAS
LCD turns OFF. Output is also turned off if the POWER
25
Switch is turned OFF.
. “J": Write to channel
Output i Description
“I Iccc"CR i Write to channel
ccc: channel numbers (000 to 999)
The status indicated on the LCD is written to channel ccc.
The LCD channel number does not change even if data is
written.
0 “K": Set channel data
The LCD display does not change even if channel data is
set.
Command i Description
“ chcabdfg"CR
K. Header code
ccc: Channel No. (000 to 999)
a: Attenuator. 1 digit (0, I)
b: IF bandwidth 1 digit (0 to Z)
d: Mode. 1 digit (0 to 9)
f: Reception frequency, 10 digit (0000100000 to
1999999999)
g: AGC. 3 digit (000 to 255)
i Sets the channel data
000' OFF
255 x 20 m5 = time
": Read channel data
Command | Description
“L”CR “Lcccabdfg"CR
“Lssseee"CR “Lsssabdfg"CR-“Leeeabdfg"CR
ccc: Current channel
555: Reading-start channel number
nnn: Intermediate channel number
eee: Reading-end channel number
The format of the data that is output from NRD-SAS is as
follows:
Output Description
“Lsssabdfg"CR Reading-start channel number
“Lnnnabdfg"CR Intermediate channel number
1 l
“Leeeabdfg"CR Reading—end channel number
l.: Header code
a, Attenuator, 1 drgit(0. l)
b: IF bandwrdth (0 to 2)
d: Mode, l drgit(0 to 9)
f: Reception frequency. IO digit (0000100000 to
1999999999)
g: AGC. 3 digit (000 to 255) 000- OFF
255 x 20 m5 : time
2] characters can be assigned to each channel. This means
that the total amount of data that can be read from all channels
is 21,000 characters (21 x 1.000). The time this takes 15 abom
44 seconds (ZI ,000 x 10/4800).
lfan attempt is made to read a channel to which data has not
been written, "V" is output to the attenuator position.
(Example. “L999V"CR)
O “M": Output 5 meter information
Command | Description
"twctz | OutputON
Output to computer in 256 steps.
OUtput | Description
“M000"CR Minimum meter deﬂection
l I
“MISS"CR Maximum meter deflection
"Mnnn"CR nnn: 000—255
0 "N": Entera noise blanker setting
Command Description
“N"CR Current status report “Nn"CR n" 0, 1,2
“NO"CR NB OFF
"NI”CR NBl
“NZ"CR NBZ
. "O"1 Tum timer relay ON/OFF
Command | Description
“OO"CR Timer relay ON
“01"CR Timer relay OFF
This setting is valid when the POWER switch is at the ON
position, and invalid when it is at the TIMER position. When
the POWER Switch is OFF, the timer relay enters the operation
mode that is set in the user setup
0 “P": Set the PBS frequency
Command Description
“P"CR Current status report “P-2200"CR
“P 7 220"CR Set PBS to 1200 HZ.
“Psnnn"CR s v, —
nnn: 000~255
0 ““.0 Request output of squelch status
Command Description
uQuCR
The format of the data that is output from NRD—545 is as
follows:
_,
RequeSt output of squelch status
. “T” Turn power supply (10.8 V) for analog Circuit
ONIOFF '
Command i Description
“TO"CR 10.8 V OFF (standby)
“Tl"CR [0.8 V ON (during operation)
Output Description 0 "U": Set user setup (For details, see Table 1-3.)
“00“CR Squelch is open.
“01 ”CR Squelch ts closed. Command Description
“U010"CR 1 Hz not added to tuning step
0 “R“: Reading of time and change time “U0! "CR 1 Hz added to tuning step
“U020"CR 10 Hz not added to tuning step
Command Description “U021"CR 10 Hz added to tuning step
“R0"CR Request reading of time “U030“CR 1 kHz tuning step
“R1hhmm"CR Change time ’ “U031"CR 5 kHz tuning step
“R2hhmm"CR Set timerON time “U032"CR 6.25 kHz tuning step
“R3hhmm"CR Set ttmerOFF time "U033"CR 9 kHz tuning step
“R‘f'CR D559!” fun—em m“? “U040"CR 100 Hz not added to tuning step
"R3 CR D’SPIZ‘Y “m“ ON ”me "U041"CR [00 Hz added to tuning step
g n D" I . .
“Eng Dips ﬁrTezeoniF'm "uosotcn 5 kHz tuning step
I p y q y “UOSl"CR 625 kHz tuning step
Though the second digit is not set when the time is changed, UOSZ CR 9 kHz mmrfg Slap
it is automatically set to “0'. U060 CR 10 kHz mm“? SW
The time is output in the following format from the NRD~545 U0“ CR [2.5 kHz tuning step
in res onse to the time read re uest “UOGZWCR 20 kHz wmng mp
p q ' “U063"CR 25 kHz tuning step
Output l Description “uoea'cn 30 kHz tuning Step
“thmmss“CR i Time data U065 CR 50 kHz tuning step
R' H d d "UO70"CR Automatic selection of tuning step OFF
‘ ea er CO e “U07I"CR Automatic selection of tuning step ON
hh: hours (00 to 23)
m. m‘n I (0010 59 “U080"CR IOOO pulses/turn
m. ‘ l 26500 59 J “U081“CR 500 pulses/turn
5; “mg; (a R“; ) _ a “uosrcn 250 pulses/turn
ote an are not out ut m secon 5 ss .
( ) p ( J "U090"CR Single display
“ N "U09I"CR Bardisplay
' 5 -5°‘°““""5' d“ “U092"CR Peak hold display
Once channel data is set, the LCD is updated with the new “Ul00"CR Beep tone OFF
“m“gs' “U 10 1 "CR Beep tone ON
Command i Description "Ul IO"CR Scan auto Slop OFF
"Scccabdfg”CR i Set channel data “UK 1 “CR Scan auto 5m” ON
“U120"CR Skip OFF during scanning
S: H d d . .
en crco e “U121“CR Skip ON during scanning
ccc: Channel number (000 to 999) ., v
a: Attenuator, I digit (0. 1) “$3152 3:3}: ptplllttimes
a a imes
leb d' 1d"0!2 .
b an MS“? lg“ 0 ) “Ul32"CR Propomonnte to squelch
d: Mode. 1 digit (0 to 9) u "C B 0 if
f: Reception frequency, 10 digit (oooomoooo to “45mm“ R F 0 5“ “Emmy 5“ “’r ‘ _
nnnn: 0000—2350
1999999999)
g' Acct 3 digit (000 to 255) 000: OFF
255 x 20 m5 : ttme
27
Command Description
“U15brsp"CR RTl‘Y demodulation mode
Baud me = 37 ro 75
bn 37 to 75
s: Shift width (0 to 2)
p: Polarity (0, l)
"Ul6n"CR RTl'Y shift width
n:0‘ it 2
Ozl70Hz, MZSHZ. 2:850Hz
“Ul70"CR R'lTY polarity Reverse
“U [71 "CR RTI'Y polarity Non'nal
“U l80"CR Display shift
“UlB l”CR Local shift
“Ul90"CR Colon blinking OFF
“Ul9l"CR Colon blinking ON
"UZOnn"CR Scan time nn:O3-SO
03(0.3 1406060” )
“UZl nnn"CR Sweep time
nnn: 005 to 050
005 (0.05 seconds) to 050 (050 seconds)
“U22nnn"CR Scan auto stop time
nnn‘ 000 to 100
000 to 100 (to seconds): 000: 0°
“U230“CR Demodulation code output OFF
“U23l "CR Demodularion code output ON
“U240"CR Input tuning circuit Pass
“U24l"CR Input tuning circuit Use
“UlSOTR Unshift on space OFF
“U7_Sl“CR Unshift on space ON
“U260"CR Space display
"U26l"CR ' display
“U270"CR Line enhancer
"U27l "CR lnvalidatt
“U280”CR MAIN TUNING dial locked
“U281"CR All dials and buttons locked
“U29nnn“CR Change effect of nurse redaceion
nnn. 000 to 255
“U30nnn”CR Change effect of heat canceler
nnn: 000 to 255
“U310"CR Lights when Squelch is closed
“U31l"CR Lights when squelch is open
“U320"CR SHARP
“U321“CR LOOSE
28
v v scuunmgsreu
Command Description
"V“CR Current status report “Vn”CR 11:0. 1,214.5
“V0"CR ll-lz
"Vl"CR lOHz
“V2“CR lOOHz
“V3"CR lkHz
“VA"CR lOkHz
“VS"CR IOOkHz
. “W": Set BWC
Command Description
“W"CR Current status report “Wnnnn"CR
, (nnnn:0010to 9990)
"Wt-“CR Maximum (9.99 kHz)
“W ~ "CR Minimum (to H2)
"Wnnn"CR Setting (nnn: 000 to 999)
0 “Y": Increment/decrement frequency
Command Description
“Y"CR Current status report
“YO"CR Stop
“Y+"CR increment frequency
“Y — "CR Decrement frequency
0 “Z": initial setting
Command Description
“21"CR Clear memory channels
"ZZ"CR Return user setup to default
“Z3"CR Execute 21 and Z2 simultaneously
. “":AA Set dimmer
Command Description
“AAO"CR Light
“AAI "CR Dark
0 “BB”: Set noise reduction/bent canceler function
Command Description
"BBQ" Noise reduction/Beat canceller OFF
"BB 1 " Noise reduction
“BBZ” Beat canceler
."CC": SetECSS
. “KK”. Set tone
Command Description Command Description
“CCO” ECSS OFF “KK"CR Current status report “Kchc"CR
“CC!" ECSS ON (USE) ecc: 000 to 55
“CCZ” ECSS ON (LSB) “KKcec" CR ccc: 000 (low) to 255 (high)
0 “DD": Set LOCK . “LL”: Set squelch level
Command Description Command Description
“DDO” LOCK OFF "LL"CR Current status report “LLccc"CR
"DDI " LOCK ON etc: 000 to 255
“LLece"CR ecc: 000 (shallow) to 255 (deep)
0 “EE”: Select notch/notch trucking ,. "MM": Set numerical keypad. buttons
Command Description Command Description
“EEO"CR Notch/notch tracking OFF “MMOCVCR 0
“EE1"CR Notch ON “MMOV‘CR I
“EETCR Notch racking ON “MMOTCR 2
“MMOTCR 3
“ “MMO4"CR 4
0 FF : Set NB level “MM05"CR 5
Command Description “MMOGHCR 6
“MMOT'CR 7
“FF”CR Current status report “FFccc"CR “MMDWCR 5
ccc: 000 to 255 “MM09”CR 9
“FFccc“CR cce: 000 (effect) to 255 (not effect) "MM10"CR _
“MMIl"CR FUNC
. “CG": Set notch level “MMIZWCR CLR
“MMI3”CR MHz
Command Description "MM l4"CR ENT/kHz
"CG“CR Current status report “GGscccc”CR "MMISTR AGC T
5 : t, _ “MM[6"CR BWC
cecc : 0000 _ |023 “MMIT'CR CH SEL
“GGscccc'CR scccc: 4023 - +1023 “MMWCR CH
“MM19"CR SCAN
"MM20"CR STEP
0"HH":SetRF GAIN level “MMZPCR FREQ
“MM27"CR SWEEP
Command Description “MMZTCR RUN
"HH"CR Current status report “HHecc"CR “MM24”CR <
ccc 00010 255 “MMZ5"CR >
“HHccc”CR ccc: 000 (minimum) [0 255 (maximum) “MM26”CR AGC
. “JJ”: Set AF GAIN ievel
Command Description
"JJ“CR Current status report “JJcec”CR
ccc. 000 to 255
"JJccc"CR ccc: 000 (minimum) to 255 (maximum)
. “NN”: SctAGC TlME
Command Description
“NN“CR Current status report
“NNccc"CR coo: 002455
0 “00": Set BWC
Command Description
“00"CR Current status report
“OOccc"CR sec: 00 I ~999
. “PP": Set IF ﬁlter
Command Description
“PPO"CR SHARP
"PP1”CR LOOSE
O “00"1 Set beat canceler
Command Description
“QQO"CR Beat cancelcr OFF
“QQl"CR Beat canceler ON
. "SS": Set stereo
Command Description
“SS“CR Current status report “SSn“CR n: 0, l
0. Monaural ItStereo
"SSO"CR Monaural
"551 "CR Stereo
0 “":‘l'l' AM detection information
Command Description
“1T"CR Current status report "‘l‘fn"CR n 0‘ I
0: Envelope detection
1 Synchronism detection
4.6.3 COMPUTERACONTROL SOFTWARE
Computer control software for operating NRD-545 on
Windows 95 is prOVided as a sample program. This software
contains software for displaying R'ITY reception Signals on
display, and panommic reception software (for displaying
the status of radio signals interfering with each at a glance).
Those requiring this software should contact your dealer
or the nearest JRC office.
(Note: Computer control software is not interlocked w|(h
the MAIN TUNING dial or controls on the
receiver.
Computer control
SECTION 5
ADJUSTMENT ANDMAINTENANCE
5.1 ADJUSTMENT
Your NRD»545 was fully adjustment and inspected at the
factory before shipping, and therefore should not require
any adjustments other than the ones described below. Fine
adjustments other than those described below require
sophisticated measurement equipment. ln the event that your
receiver requires such adjustments, please contact JRC or
the dealer where you bought the unit.
I Preparation for adjustment
Refer to section 7.2 ‘REMOVlNG COVERS' to remove the
upper cover.
At this time, do not to remove the connector at the up of the
speaker cable, (If this is necessary. connect the external
speaker to the EXT SP jack on the rear panel.)
(1) REFERENCE OSCILLATOR FREQUENCY AD-
JUSTMENT
®Turn the POWER switch ON and select the CW mode to
receive the standard time station (JJY, WWV. etc). At
this time. adjust as far as the IQ Hz digit of the reception
frequency to the frequency of the reference wave.
®Set the BFO offset frequency to i 0 Hz referring to “4.5
Modifying Operations by User Setup."
©Adjust the trimmer capacitor (CVI), located at the top of
the shield case of the CGK-ISO REF/DDS unit, as shown
in Figure 5-l until no beat note is head from the speaker,
®This completes adjustment of the reference oscillator
frequency. Return the BFO offset frequency to +800 Hz,
turn the POWER switch OFF and attach the top cover.
cox-tee REF/DDS mu:
Figure 54 Reference oscillator frequency
adjustment
(2) BEEP TONE ADJUSTMENT
®A beep sound will be heard when a numeric key
operation oran incorrect operation has been made.
®Adjust the semi-fixed variable resistor (RVB) on the
shield case on the CGK-léo REF/DDS unit to adjust the
beep tone as desired,
©When you have completed the adjustment, turn the
POWER switch OFF and attach the top cover.
5.2 MAINTENANCE
(1) ELECTRIC COMPONENTS
The le, transistors and diodes of the NRD—SAS are
extremely sensitive and will be destroyed even if short-
circuited for an extremely short period of time.
Therefore it is imponant to take special care of them,
(2) FUSE
If the power fuse is blown, try to determine the cause of
the problem before replacing the fuse. The fuse is located on
the back panel. A DC fuse is also provided on the power
cord between the receiver and the power supply.
(3) CR2032 LITHIUM CELL
The NRD—SAS memory channel information is backed up
by a lithium cell, this cell should function properly for about
ﬁve years before requiring replacement. If the memory
channel information errors occur. or if the information is not
saved to memory, the lithium cell will need to be replaced.
The model name of the lithium cell is CR2032 (JV).
Contact the dealer where you bought your NRD-545 if
you are unable to obtain a new battery or would like your
battery to be replaced by service personnel.
0 Replacing the lithium cell
(1) Disconnect the powercord from the NRD~545.
(2) Remove the top and bottom covers as shown in item 7 2.
(3) Remove the control panel from the NRD—Sdi body.
(4) Replace the lithium cell attached to the display unit as
shown in Figure 5-2,
(5) Attach the control panel onto the NRD-SAS body.
(6) Attach the top and bottom covets. This completes the
procedure.
11,.
thhlum Cell
Figure 5-2 Replacing the Lithium Cell
5.3 TROUBLESHOOTING
The NRD-545 has many features, but may not peﬁon‘n as desired if it is opemted improperly. If you experience it
problem, first review the operating procedures presented in this manual before deciding that the problem is due to an
equipment failure, This section describes various symptoms which can occur if the NRD—545 is not handled or operated
properly. None of these symptoms are indicative of an equipment failure. Therefore it is important to carefully review the
possible causes of a problem before placing a repair orderr If the NRD-545 still does not Dpemte properly after going
through the troubleshooting procedures. determine What the detailed symptoms are and contact JRC's customer service
center or the dealer where you bought the unit.
5.3.1 SIMPLE PROBLEMS
Display unlt (ODE-880)
No. Symptom Cause Sotutien
1 No display appears when the power is (”The power connector is not fully (I) Check whether the connector is]
switched ONA connected. plugged in.
(2) The [use is blown. (2) After determining the cause or the
problem. replace the fuse WRh a new
fuse lhzl has the same rating,
. d ' .
Z The display works but there is no sound (Ugaeolri‘leégpszes are connect: to the (1) Disconnect the headphones
Wh‘" "" PW“ " ”M“ O” (2) Squelch is closed. (2) Set squelch to OFF.
(3) The RF GAIN control is at the most (3) Tum the RF GAIN control to the
counterclockwise position, most clockwise position
3 LCD is dark. Dimmer is set to minimum brightness. Set the DIMMER to the “light".
4 The S meter is deﬂecting even though The RF GAIN control is not at the most Turn the RF GAIN control to the most
there are no incoming signers. clockwise position, clockwise position,
5 Distorted sound and/or poor audio (DAGC is OFF. (l)SetAGC to ON.
quality. (2) The receiver is out or tuned (2) Adjust MAIN TUNING dial.
frequency.
(1) The wrong mode is setected. (3) Select the mode to.- the incoming
signal.
(4) The notch ﬁlter is ON. (A) Sci notch to OFF.
(5) The pass band shirt contml is not at (5) Set the piss band shttt control at the
the center poslllont center position
(6) The noise blanket is ON. (6) Set the noise blanket to OFF,
(7) Noise reduction is functioning. (7) Set noise reduction to OFF.
6 Low sensitivity (l) ATT is on. (1) Set ATT to OFF,
' (2) The antenna is not connected. (2) Property connect the antenna. Check
whether the antenna selector switch
on the back side is set properly.
rm
5.3.2 MORE SERIOUS PROBLEMS
(1) DISPLAY ERROR. RECEPTION ERROR
Vibrations that occur during transportation sometimes
cause printed circuit boards inside the NRD-545 to come
loose or faulty connections between connectors and the
mother board, This may result in display error. reception
error, or other phenomena. If this happens, remove the top
cover as shown in Figure 7-3, and press the printed circuit
board from above to firmly insert the board.
(2) TELEVISION, RADIO, STEREO, OR OTHER
EQUIPMENT IS RECEIVING INTERFERENCE
WHICH SEEMS TO BE FROM NRD-545
The NRD-545 has been RFI shielded sufficiently for
practical use. However, inadequate grounding, an improper
antenna installation location, and other factors can result in
noise interference in other electronic devices. if you
experience such problems, try the following:
1. Replace the NRD»545 grounding wire with a wire that has
a thicker conductor. Be sure that all connections such as
copper plates are securely buried in the ground or
connected to a water pipe. Also make sure that all runs of
wire are as short as possible,
2. Place the antenna on the other device at a sufficient
distance from the NRD-SAS and the NRD-545 antenna.
3. If the other device is a television or FM receiver. try
changing the orientation of the set’s antenna, or replace it
with a higher-performance antenna.
4, Try plugging the NRD-SAS and the other device into
separate outlets.
5. Use a thicker ground wire on the other device.
6. Insert a noise ﬁlter or isolation transformer in the power
supply line.
(3) OBVlOUS NOISE INTERFERENCE WHICH IS
PROBABLY DUE TO ARTIFICIAL NOISE DURING
RECEPTION
There are numerous artificial and natural noise sources
that can affect receivers. Natural noise can be caused by
thunder, rain, and snow storms. Artificial noise is produced
by motorcycle and auto ignitions, power lines, sewing
machines, personal computers, ﬂuorescent lights, hair
dryers. and other devices. In addition, nearby radio stations
may cause noise which is only a problem during trans—
mission Basically, measures to prevent artiﬁcial noise
interference must be taken at the noise source. However,
changing the NRD-SAS receiving antenna design and
changing the location where it is installed may be helpful. In
addition, improVing your grounding system is often an
effective means of reducing interference,
Even if there are strong noise sources in your area, your
receiver should work we“ as long as the signal you are trying
to receive has sufficient field strength. Noise leads to inter
ference only when you are trying to receiVe a weak srgnal.
(4) INTERFERENCE DUE TO INTERMODULATION
if your receiver is close to live broadcast stations or other
sources of strong mdlo emissions. you may simultaneously
receive signals from one or more stations at a frequency
where you would normally not expect to receive such
broadcasts. This type of occurrence is called intermo-
dulation. If you seem to be experiencing such a problem,
turn the NRD—SAS ATl‘ button to ON, If this does not solve
the problem, lower the antenna height and/or use a shorter
antenna. These steps will almost always solve the problem.
(5) RECEIVER SENSITIVITY SEEM LOW
The ﬁeld strength of a signal from a given station can
vary widely according to facmrs such as sun Spats, the
season, the time of day, and the frequency, This is especially
true at high frequencies. Therefore a comparison of receiver
sensitivities is only meaningful if you compare output S/N
ratios at the same time of day, using the same frequency and
the same antenna.
The sensitivity you hear may also nary according to the
speaker volume. if you think your receiver has poor
sensitivity, be Sure to consrder factors such as the frequency
and antenna orientation,
SECTION 6 CUSTOMER SERVICE
This product was passed through rigorous quality control
procedures and testing before it was shipped In the event of
a failure, please contact the dealer where you bought the
produCt. Try to describe the problem in as much demil as
possible,
- If the product needs to be repalred:
Before placing a repair order, please review the information
presented in the troubleshooting section 5.3,
- If you are unsure about the availability and terms
of after-service:
Contact the dealer where you bought the product.
The cardboard box that the NRD-545 is shipped in was
designed to provide maximum protection during shipping
Therefore we recommend that you save this box in cue
you need to ship the radio at a later date for servicing , etc,
OPTIONAL UNITS
5 The TCXO (COD-197) has been adjusted to provide the
ultimate performance, thus no readjustment is required,
SECTION 7
7.1 INTRODUCTION
Several optional units are available to help you operate
the NRD—SJS more effectively.
6, Firmly mount the unit at the specified location.
7.Attach the top cover. This completes mounting of the
I Temperature Compensated X’tal Oscillator crystal oscillator.
This oscillator is for improving, the frequency stability to
within 2 0 5 ppm. I Wldeband converter unit CHE—199
(1) Contents of package
TCXO COD-[971 I
Printed circuit board puller: 2
Instruction manual: I
TCXO CGD-‘I 57
(2) INSTALLATION
Be sure to turn the NRD-545 POWER/TIMER
ON/OFF switch (19 to OFF and remove the power cord
before installing the CGD-l97t Also do not unnecessarily
touch any of the units inside the NRD»545.
1. Remove the top cover according to “7.2 Removing
Cot/ets."
2. Remove the CGK-l60 REF/DDS unit from the
NRD-545 body according to “7.3 Removing lntemal
Units.“
3. Solder the TCXOonto XUI on GK-IGO. (See Figure
771.)
4. Swap P1 JPI-I, JPI-Z and JPIJ on the TXCO-ON
side
arr/cos that
can » tso
TCXO CGD-|§7
Figure 7-1 Installing the TCXO
The CHE-199 can extend the reception frequency range to
100 kHz to [999.999 MHz.
(1) Contens of package
Widchand converterunit: 1
Printed circuit board puller: 2
Instruction manual: 1
Wldeband converter unit CHE-199
(2) INSTALLATION
Be sure to turn the NRD—SAS POWER/TIMER
ON/OFF switch (3 to OFF and remove the power cord
before installing a CHE4199. Also do nor unnecessarily
touch any of the Units inside the NRD»545,
1 Remove the top cover according to “7.2 Removing
Covers."
2. Attach the widehand converter unit CHE-199 at the
specified location according to Figure 7—2. and insert
the coaxial cable into 11 on the wideband converter
unit. If the cable is not properly inserted Into the
wideband converter unit at this time. the contact may
be faulty and prevent the NRD-545 From functioning,
3 Attach the top cover, This completes mounting of the
wideband cinvener unit.
4. Turn the main power ON while holding down the CLR
button @ to return the memory channels and user setup
to the factory setting (default).
5. When the wideband converter unit is mounted, the
CPU automatically recognizes this, and the unit
becomes operable When the unit is mounted, the
WIDE BAND display on the LCD lights.
6. To receiVe frequencies 30 MHz or higher. at wideband
connector must be connected to the WB ANT connec—
tor.
cus— is;
Figure 7:2 Mounting the Wideband Converter Unit
I External speaker NVA-319
This external speaker adopts the same design as the
NRD-545, and has a built-in AF ﬁlter.
External speaker NVA-319
I ST—3 Headphones
The ST-3 headphones are designed for radio communication
equipment.
57-3 Headphones
l SZCJDOOSSO RSAZSZC cable
This cable is designed to connect the NRD»545 with a
personal computer.
on
7.2 REMOVING COVERS
Remove the upperor lower cover as shown in Figure 7-3
Remove the six screws on each cover to remove the cover.
The speaker is attached to the upper cover. so remove the
COVer gently taking care to prevent the speaker cable from
being out If necessary, remove the connector on the cable end
from the internal unit. Then, remove the protective material for
securing the printed circuit boards.
Figure 7-3 How to Remove the Covers
When you remove the top cover of the NRD—545, you will
find protective material (1) attached inside the body as
shown in the figure below. This material is attached to
prevent NRD-SAS plug-in units from coming loose during
transportation Even if this material is attached, it will not
adversely affect the electrical functions of the NRD—SAS.
PNl-alivo mum-i, m
7.3 REMOVING INTERNAL UNITS
Internal unis are laid out as shown in Figure 7—4.
(PRINTED CIRCUIT BOARD)
(I)Insert the primed cittui! board pullers (option) intn the
holes on bath ends of the printed circuit board from the
components mounting side, (See Figure 7-5.)
(Z)Prrss the printed circuit board pullers down in the direction
of the arrow as if they were levers,
(3)When the primed circuit board comes Ioose. gently pull the
board up to remove.
REF/DDS
' EFL—356 as ruuz
cox—um
u A44“.
an — use Dvspuv
Figure 7—4 Layout of Internal Units
Primed eIreuIl board puller-
Figure 7-5 Removing Internal Units
7.4 FASTENING COVERS
Make sure that the internal printed circuit board units are
ﬁrme mounted, Insert the speaker connector on the tap
cover to the SP OUT I?“ of the CGKeléO. and mount the
top cover. Then. tighten each of the fourscrewst
SECTION 8 ABOUT DISCARDING THE UNIT
& WARNIG
Before you discard this unit. remove the used
lithium cells from the NRD-SAS, and ﬁx
insulating tape to their + and - terminals. Failure
to do this can cause heat generation, bursting or
ﬁre.
8.1 DlSCARDING THE NED-545
~ Dispose of the NRD-545 according to local govemment
mles and bylaws.
' Before you discard the NRD-SAS, remove the lithium cells
from CPU unit CUE-860 attached to the front of the unit.
For details on how to remove the lithium cells. see ”5.2 (3).”
8.2 DISCARDlNG LITHIUM CELLS
~ Do not save used lithium cells. not dispose of used lithium
cells are disposable rubbish.
- Before disposing of used lithium cells, and insulate them by
fixing' insulating tape, to their + or - terminals. Next,
separate them from other batteries or cells to diSpose of. and
dispose of them according to local government mles and
bylaws, For details, contact your dealer.
SECTION 9
Operating Frequency Range:
NRD-5450:
NRD—545U:
Modes of Reception:
SPECIFICATIONS
_________________———————-—
0.1 to 29999999 MHZ Frequency stability:
With option board (CHE—199)
installed.
100 kHz to 1999.999 MHz
IOO kHz-823,900 MHZ
849.100 M]"Iz~868.900 MHz
894.100 MHz-4849900 MHz Minimum Tuning Step:
1910100 Nil-[249291900 Md;
1990100 MHz-1999999 MHz Memory Channels:
USE. LSD, CW, RTI'Y, AM,
FM
WFM (with option board
installed) Receiving System:
(NoterSB, LSB, CW and R‘I'I'Y
modes are valid at under 30-
MHz, WFM mode is valid at
30 MHz or more.)
1 10 ppm or less after 5 to 60
minute warm-up period; t 2
ppm per hour or less from then
On
t 015 ppm (with option TCXO
mounted)
I Hz (10 Hz to 100 kHz steps
possible)
1000 (frequency, mode,
bandwidth. ATT, AGC and
Tuning step can be stored to
memory)
Triple superheterodyne
First IF; 70.455 MHz
Second IF: 455 kHz
Third IF: 20.22 kHz
Sensitivity
USB,LSB,CW.R‘1'I‘Y AM FM WFM
0.1~045M'1-lz me u (s M V) 24dB u (153 h V) —— _
0v5~1.6MHz 6dB u (z H V) 16dB u (6.3 h V) _— ___
I.6-30MH2 —- [MB 11 (032 u V) 6dB u. (2 A V) — 6dB u (0.5 u V)
30~1000MH1 —— lOdB u (3.2 u V) — me u (0.8 u v) 6dB u (z A: V)
1260-1300Mt-tz lodB y. (3.2 11 V) ~ me 11. (0,3 u V)
__|_
Bandwidth USB/LSB/CW/RTI‘YIAM: 24 kHz
S/N: 10 dB, Modulation: 400 Hz, 3070 (at AM measurement), 12 dB SINAD (at FM, WF
measurement method
(sensitivity at 30 MHz or more with option board inStaIIed)
Selectivity
M measurement). according to JAlA
I i Bandwidth 6dB éOdB
The WIDE, INTER and NARROW are only
WIDE 45kHZ 4‘5 kHz or more 8 kHz or less examples. Any bandwidth in the range 0.0I to
INTER 2,4kHz 214 kHz or more SkHz or less 999 kHz can be set. (except for AM. FM.
NARROW lkl'Iz I kHz or more 4 kHz or less WFM)
FM lOkHz 10 kHz or more ——
Dynamic range: 106 dB (IF bandwidth 300 Hz) AGC chamcterisdcs: 10 dB or less AF output varia-
lmage rejection: 70GB or more tion For antenna input signal
Spurious response: 60 dB or more change from 3 a V to 100 mV.
[F rejection:
PBS variable range:
Notch attenuation amount:
Notch variable range:
Notch tracking mnge:
Antenna impedance:
Attenuator:
70 dB or more
1 2 3 kHz (50 Hz steps)
40 dB or more AF output:
1 2.5 kHz (10 Hz steps)
t 10 kHz
50 Q at Lo-Z terminal; 600 Q at
Hi
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Japan Radio NRD-545 User Manual 47067

Japan Radio Co Ltd. 47067

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FCC ID Filing: CKENRD-545

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