BK Technologies GMH599 VHF Mobile Transceiver User Manual Manual Section 2
RELM WIRELESS CORP. - BK RADIO VHF Mobile Transceiver Manual Section 2
Contents
Manual Section 2
BK RADIO
Page 2-1
SECTION II
INSTALLATION AND PROGRAMMING
2.1 GENERAL INFORMATION
This section contains information concerning the installation and programming of BK Radio GMH
Series radios.
2.1.1 Unpacking and Inspecting Equipment
Exercise extreme care when unpacking the equipment. Make a visual inspection of the unit for
evidence of damage incurred during shipment. If a claim for damage is to be made, save the shipping
container to substantiate the claim. The claim should be promptly filed with the transportation
company. It would be advisable to retain the container and packaging material after all equipment has
been removed in the event that equipment storage or reshipment should become necessary.
2.1.2 Installation
Plan your installation carefully. Locate the radio and microphone within easy reach, giving the
operator a clear view of the display. Do not locate the radio or microphone in a position that interferes
with safe operation of the vehicle.
Once the equipment location is chosen, determine the best routing for cables and wires to connect
the system. Use a rubber grommet to protect the wires when passing through sheet metal. Avoid any
route that subjects the wire to pinching, cutting, or high heat from the engine or other vehicle
component.
The radio must be used with a 12 volt, NEGATIVE GROUND electrical system. Refer to Figure 2-1.
1. Crimp the fuse holder in line with the red power lead as close to the battery as possible.
2. Connect the red power lead to the vehicle battery POSITIVE terminal. Using other positive
voltage points in the vehicle is not recommended.
3. Connect the black lead to a good ground point on the vehicle chassis. Connection to the
negative battery terminal is not recommended.
4. Mount the antenna carefully. Follow the instructions supplied with the antenna kit. Route the
coax cable to the radio mounting location.
5. Fasten the mounting bracket securely to the desired location.
6. Mount the microphone clip securely to the desired location. The microphone hanger clip must
be grounded for proper radio operation. Use the supplied ground wire if needed.
7. Mount any approved accessory speakers and route the wires to the rear of the radio bracket.
8. Connect the power lead, antenna connector, and accessory wires to the rear of the radio.
9. Place the radio in the mounting bracket, adjust to the proper mounting angle, and thread in
the two side mounting knobs until the unit is secure.
NOTE: Option A and B connections are logic level outputs. Consult your BK Radio dealer before
connecting accessories to these pins.
Installation and Programming GMH Series VHF Radio
Page 2-2
BK RADIO
FIGURE 2-1 INSTALLATION
HANG -UP C LIP. FO R PRO PER O PERATIO N, THE RA D IO M UST BE SET UP
U P F O R "O F F -H O O K W H E N M O N ITOR HIG H ". C O N TAC T YO UR BEN D IX/KING
TH E H A N G -U P CLIP. FO R PRO PER O PERATIO N , THE RA D IO M UST BE SET
CODE G UARD OPERATION. USE GROUND WIRE (ITE M 1 3 ) IF N E E D E D .
TH E S E M IC RO PHO N ES SUPPLY AN O PEN M O N ITO R SIG N AL W HEN IN THE
M IC RO PHO N E M O D EL # LAA 027 6, LAA 0281
DEALER FOR PROGRAMMING CHANGES.
TH E S E M IC RO PHO N ES SUPPLY A G RO UN DED M O N ITO R SIG N A L W H EN IN
M IC RO PHO N E M O D EL # LA A 0285, LAA 028 2
- R A D IO PROGRAMMING DIFFERS DEPEN D IN G O N M ICROPHONE M ODEL USED:
- TH E M IC RO PHO N E HANG -UP CLIP M UST BE G RO UNDED FO R PROPER
* IM PO RTAN T- READ BEFO RE O PERA TING M ICRO PHO NE
*
GROUND WIRE, HANG UP C LIP155-02 220 -000013
ITE M 13
D EC A L SET057-05 418 -000012
HAN G -UP C LIP *
MICRO PHO NE
MIC PLUG
C A BLE SH ELL11 030-01 448 -0000
POWER
(J1 3 )
CONNECTO R
MICROPHONE
TH IS D W G
ITEM S 8 AN D 9 ARE INC LUDED FO R APPLICATIONS NOT REQ UIRING A FRO N T
SEE BELO W
SEE BELO W
QTY 2
QTY 4
REM A RKS
IN S TA LL A TIO N K IT - PA RTS INCLUDED
(2 R E Q 'D)
ITE M 3
GROUND
C H A SSIS
BATTER Y
VEHIC LE BATTERY AS PO SSIBLE
IN STA LL FUSE HO LD ER AS C LO SE TO
C RIM P AREACRIMP AREA
(J 1 7 )
CONNEC TOR
A C C ESS O R Y
(J 4 )
CONNECTO R
ANTENNA
(J 1 6 )
JA C K
SPEA KER
CONNEC TOR
POWER (+ )
(-)
ITE M 6
ITM 5
RED
BLA C K
ITM 5
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
EXTERN AL C O N NEC TIO N S FUSE HO LD ER D ETAIL
MIC C O RD DETAIL
(4 R E Q 'D)
ITE M 4
(4 PLC S.)
NO. 26 DRILL
0.147
S C H E M A TIC REC O M M EN DED HO LE PA TTER N
ITE M 2
PA RT O F M IC ROPHO NE
10 030-03194-0000 9 PIN MALE C ONNECTO R
9 088-02 593 -0000 M IC C O VER
8 088-02594-0001 GROMMET
7 036-00 041 -0000 FUSE 15A, 32V, FA ST BLO W
6 033-00 226 -0000 FUSE HO LD ER
5 1 55-0 2 7 1 7 -0 0 0 0 PO W ER C O RD A SSY.
4 089-07 072 -0012 SELF TAPPIN G SC REW , # 10
M OUNTING KNOB090-00 941 -00003
MOUNTING BRACKET047-09 806 -00012
EM H /EM V IN STA LLA TION INSTRUC TIONS
006-01 234 -00031
D ESC RIPTIO NPART N UM BERITEM
96
51
GND
3.2 0HM
AUDIO OUT LO
AUDIO OUT HI
15A -E M V
BLAC K
RED
J13 J17 (9 PIN)
MIC HI
MIC LO
BU F D ISC
OPT A
PTT
SW A +
MON
OPTION B
REM O TE SPKR
J16 J4
TO AN TENNA
EM H/EM V M O BILE U N IT
6
1
PRO G
MON
MIC HI
MIC LO
PTT
SW A+
MOUNTED MIC RO PHO N E. THEY ARE TO BE USED TO SEA L O FF THE UNUSED
MIC OPENING.
F O R "O F F -H O O K W HEN MONITO R LO W ". C O N TAC T YO UR BEN D IX/KING
D EALER FO R THE REQ UIRED PROGRAMMING CHANG ES.
10 030-03246-0000 15 PIN M ALE C O NNEC TO R
OR
EM V-O LD ER
EM H &
EM V-N EW ER
15
15 11
610
OR
J17 (1 5 PIN)
-1 O P T B
-2 N .C .
-3 R EM O TE SPKR
-4 O P T C
-5 SW A +
-6 C H ASSIS GND
-7 M IC LO
-8 MON
-9 PRO G
-10 O PT A
-11 M IC HI
-12 PTT
-13 BUF D ISC
-14 N .C .
-15 REM O TE
S P K R G N D
+
+
B A TTER Y
CHASSIS
GROUND
20A -EM H
7 036-00 037 -0000 FUSE 20 A, 32V, SLO W BLO W
EM V
EM H
OR
GMH Series VHF Radio Installation and Programming
BK RADIO
Page 2-3
2.2 KEYBOARD PROGRAMMING
GMH Series radios can be programmed in three different ways:
A. With a computer, GMH tuning software, and an LAA 0725 interface cable. That procedure is
not described in this manual.
B. With the optional LAA 0290 keyboard microphone. That procedure is described in this
section.
C. With an LAA 0700 cloning cable, clone programmed settings (except Alphanumeric display
settings) from a BK Radio portable radio with a keyboard and display, and with the same
frequency band as the GMH. That procedure is described on page 2-12.
2.2.1 Enter Programming Mode
1. Select a channel group to be programmed (if
applicable) by pressing the GRP button and rotating
the Channel Select knob. Press the GRP button
again to return to channel select mode.
2. Press and hold the far right pushbutton on the front
of the radio.
3. While holding the far right pushbutton, press and
hold the [FCN] key on the microphone. After about
three seconds the display will show - - - ID.
4. Release the
[FCN] key and the right pushbutton.
The radio is now in the password entry mode.
5. Enter the six-digit password code. Without the
correct password code, you cannot proceed with
programming.
NOTE: New radios shipped from the factory are
assigned the password code 000000.
While entering the password code the display will
not change, but a beep will sound for each key
pressed. If the password code is entered incorrectly,
the radio will reset to normal operation. Try again,
starting at step 2.
6. To keep the password unchanged, press the [ENT]
key on the microphone and continue with normal
radio programming.
To change the password, press the [FCN] key and
enter a new six-digit password code. The digits are
displayed as you enter them.
NOTE: Do not use a 1 for the first digit of the
password code – the radio will malfunction.
The password code can contain the digits 0
through 9, *, and #.
If you make an error entering the new password
code, press the [CLR] key on the microphone and
try again.
Installation and Programming GMH Series VHF Radio
Page 2-4
BK RADIO
7. Press the
[ENT] key to store the new password and
proceed to programming mode. The display will
change to PRG Ch 000.
2.2.2 General Performance Variables (Channel 0)
Channel 0 settings for each group must be programmed separately. Select the group to be
programmed (if applicable) by pressing the GRP button an rotating the Channel Select knob. Press
the GRP button again to return toe Channel Select mode.
The same password is used for all groups in the radio.
NOTE: Settings listed as Group One functions, Group Two functions, and Group Three functions
refer to programming function groups, not channel groups.
Press the [FCN] key on the keyboard repeatedly to view the settings in Channel 0, then loop back to
the CH 000 entry point. Channel 0 settings include:
Automatic Number Identification (ANI)
Transmitter Timeout Timer
Scan Delay Time
Group One functions: 1-12345
Priority Scan Operation
Priority Key Lockout
Scan List Lockout
Group Two functions: 2-12345
Enable User Code Guard
Busy Channel Operation
ANI Enable
DTMF Enable
Group Label
2.2.2.1 Automatic Number Identification (ANI)
1. After entering the programming mode the display will
show PRG Ch 000.
2. Press the
[FCN] key.
3. The display will indicate the ANI ID number (as many
as seven digits may be used). The ID number can
be used for either radio management or transmitted
as a DTMF tone burst for ANI purposes. The ANI
can be enabled or disabled. See “ANI Enable” on
page 2-8.
4a. If no change is needed for the ID number, press the
[FCN] key to advance to the next section.
4b. A new number can be entered by pressing the
[CLR] key, followed by number keys. The digits will
appear at the right of display and move to the left.
GMH Series VHF Radio Installation and Programming
BK RADIO
Page 2-5
4c. The existing ID number can be incremented one
digit by pressing the [PRI] key on the microphone.
4d. Press the [ENT] key to store the new ID number and
advance to the next section.
Installation and Programming GMH Series VHF Radio
Page 2-6
BK RADIO
2.2.2.2 Transmitter Time Out Timer
After the ID number is set, the display annunciator
will indicate PRG TX. This is the duration of the
transmitter Time Out Timer. 0 SEC means the Time
Out Timer is disabled.
Press the [PRI] key to increase the Time Out Timer
duration by 15 seconds, with a maximum of 225
seconds (3 minutes, 45 seconds). Press the [PRI]
key again to change the duration from 225 seconds
to zero.
Press the [CLR] key to set the Time Out Timer
duration to zero.
Press the [ENT] key to store the changed setting
and advance to the next section.
Press the [FCN] key to advance to the next section if
no change is needed.
2.2.2.3 Scan Delay Time
After the Time Out Timer is set, the upper display
will indicate PRG SCN. This is the scan delay time in
seconds.
Press the [PRI] key to increase the scan delay time
by .5 seconds, up to 7.5 seconds. Press the [PRI]
key again to change the time from 7.5 seconds to 0.
Press the [CLR] key to reset the scan delay time to
0.
Press the [ENT] key to store the changed setting
and advance to the next section.
Press the [FCN] key to advance to the next section if
no change is needed.
2.2.3 Channel 0 Group One Functions
After the scan delay time is set the display will show
PRG 1-12345. This is a group of five individual
functions that can be enabled or disabled.
When a function is enabled, the corresponding
number in the display will flash. When the function is
disabled the number is steady. If you wish to
change the function from enable to disable or vice
versa, press the number key corresponding to that
function.
EXAMPLE: If function 4 (Priority Key Lockout) is disabled,
the 4 in the display will not be flashing. If the [4] key
is pressed, the 4 in the display will f'lash, signifying
that Priority Key Lockout is enabled. A subsequent
press of the [4] key wiIl disable Priority Key Lockout
GMH Series VHF Radio Installation and Programming
BK RADIO
Page 2-7
2.2.3.1 Priority Scan
Functions 2 and 3 are used to define Priority Scan
operation. There are three types of Priority Scan
available. They are described in greater detail under
"Priority Scan" beginning on page 3-8. Priority Scan
modes include:
Priority Mode A - The Priority Channel follows the
position of the Channel Selector knob.
Priority Mode B - The Priority Channel is fixed. You
will transmit on the channel selected by the Channel
Selector knob.
Priority Mode C - The Priority Channel is fixed.
When the PRI toggle switch is on, you will transmit
on the Priority Channel regardless of the Channel
Selector knob setting.
To set Function 2 and 3 for Priority Mode A, B, or C, use the following chart:
FUNCTION 2 FUNCTION 3
PRIORITY MODE A
PRIORITY MODE B
PRIORITY MODE C
DISABLE (STEADY)
ENABLE (FLASHING)
ENABLE (FLASHING)
DISABLE (STEADY)
DISABLE (STEADY)
ENABLE (FLASHING)
2.2.3.2 PRI Key Lockout
When function 4 is enabled (flashing) the [PRI] key
is locked out in the operating mode. The user will not
be able to change the designation of the Priority
Channel.
When function 4 is disabled (steady) the user will be
able to change the channei that is designated as
Priority Channel. See "User Selected Priority
Channel" on page 3-7.
2.2.3.3 Scan List Lockout
When function 5 is enabled (flashing), the user will
not be able to change the channels in the scan list.
When disabled (steady), the user can enter or delete
channels from the scan list. See "User Selected
Scan List" on page 3-7.
2.2.3.4 Store Group One Settings
Once each function 1-5 is set as desired, you can store the changes, discard the changes, or
disable all 5 functions.
Press the [CLR] key on the microphone to disable all Group One functions (steady).
Press the [ENT] key to store new Group One settings into memory and advance to the next
section.
Press the [FCN] key to advance to the next section without saving changes.
Installation and Programming GMH Series VHF Radio
Page 2-8
BK RADIO
2.2.4 Channel 0 Group Two Functions
After Group One functions are set, the display will
show PRG 2-12345 for Group Two functions. As
with Group One functions, the enabled function
number will flash. The disabled functions remain
steady.
2.2.4.1 User Code Guard Selection
When function 1 is enabled (flashing) the user will
be able to press the keyboard to independently
select the CodeGuard values that are programmed
into Channels 1 thru 9 while operating on any
Channel 1 thru 14. When disabled the user will be
unable to use the keyboard for Code Guard
selection. See "User Selected Code Guard" on page
3-7.
2.2.4.2 Busy Channel Operation
Functions two and three are used to set Busy
Channel operation. There are three types of busy
channel operation available. They are described
more fully under "Busy Channel" on page 3-9. Busy
Channel modes include:
Busy Channel Indicator - The yellow LED illuminates
when a signal is received on the channel selected,
with or without the programmed receive Code Guard
setting. Busy Channel Lockout - The yellow LED
illuminates and the transmitter PTT is disabled when
a signal is received without the programmed receive
Code Guard setting.
Busy Channel Override - This function is similar to
Busy Channel Lockout except the transmitter PTT
can be activated by rotating the Squelch knob
clockwise off the Code Guard detent.
To set Busy Channel operation use the following chart:
FUNCTION 2 FUNCTION 3
BUSY CHANNEL
INDICATION
BUSY CHANNEL LOCKOUT
BUSY CHANNEL OVERRIDE
DISABLE (STEADY)
ENABLE (FLASHING)
ENABLE (FLASHING)
ENABLE (FLASHING)
ENABLE (FLASHING)
DISABLE (STEADY)
GMH Series VHF Radio Installation and Programming
BK RADIO
Page 2-9
2.2.4.3 ANI Enable
When function 4 is enabled (flashing) the ANI ID
number will be transmitted (as a DTMF tone
sequence) with each press of the PTT switch. See
"Automatic Number Identification (ANI)N on page 2-
4 for instructions on setting the ANI number.
When functions 4 and 5 are both enabled (flashing)
the ANI tone sequence will be transmitted only after
the [ENT] key is pressed while the transmit PTT
switch is activated. A sidetone of the ANI number
transmitted will also be heard through the speaker.
2.2.4.4 DTMF Enable
When function 5 is enabled (flashing) the
microphone keyboard becomes active for manual
DTMF operation.
2.2.4.5 Store Group Two Settings
Once Group Two functions are set, press the [ENT] key to store them into memory and
automatically advance the program to the next section.
Once each function 1-5 is set as desired, you can store the changes, discard the changes, or
disable all 5 functions.
Press the [CLR] key to disable all Group Two functions (steady).
Press the [ENT] key to store new Group Two settings into memory and advance to the next
section.
Press the [FCN] key to advance to the next section without saving changes.
Installation and Programming GMH Series VHF Radio
Page 2-10
BK RADIO
2.2.5 Alphanumeric Display Functions
2.2.5.1 Group Label
The GMH radio can be programmed to enable the display of alphanumeric labels. This can
be enabled only by using a computer, GMH Editor software, and an RS-232 interface cable:
After Group Two functions, the display shows the
current label for the channel group, if alphanumeric
labels are enabled. Each channel group can have a
label of up to eight characters or spaces. The
characters can include A - Z, 0 - 9, punctuation
marks, or a blank.
• If no change is needed, press the [FCN] key to go
back to the starting point for Channel 0 settings.
• Press the
[CLR] key to erase the current label.
• Press the
[CLR] key a second time to restore the
current label.
2.2.5.2 Label With Numbers
1 Press the [CLR] key. The display becomes blank.
2. Press number keys to enter 0 - 9 in positions one
through eight. The digits start in position eight, then
move left.
3. Use the following steps to enter a number in position
eight, or characters in positions one through eight:
2.2.5.3 Label With Letters, Numbers, Etc.
1. Press the [PRI] key repeatedly to cycle through the
available characters: A - Z, 0 - 9,/ I ^ -! "# $ % & < >
* + _ \ ( = ) ? then back to the start again (blank).
If you pass the desired character, press the [PRI]
key repeatedly until you return to the start and reach
that character again.
2. Press the [FCN] key to shift the display left by one
position, leaving position eight blank.
3. Press the [PRI] key repeatedly to enter the next
character, or press the [FCN] key a second time to
enter a blank space.
4. To abandon changes, press the [CLR] key, restoring
the original label.
5. Press the [ENT] key to store changes and go back
to the starting point for Channel 0 settings.
2.2.6 Review Channel 0 Values
Press the [FCN] key repeatedly to display each
value in Channel 0, then return to the Channel 0
starting point.
GMH Series VHF Radio Installation and Programming
BK RADIO
Page 2-11
2.2.7 Enter Channel Frequencies and Code Guard Values
At the starting point for Channel 0, the display
shows PRG Ch 000. At this point, a channel number
can now be pressed to allow access to the
frequency and Code Guard values for that channel.
NOTE: A valid receive frequency must be
programmed into each channel intended for
use. If a 0 value or an invalid frequency is
programmed, the display will give a false
reading in the operation mode, and may
result in radio malfunction. If a malfunction
occurs, reset the radio by turning it off and
then back on.
1. Press 1 and the display will show PRG Ch 001. This
is the starting point for entering channel 1 values.
2. Press the [FCN] key and the upper part of the display
will show PRG RX. This is the receive frequency for
channel 1 (in MHz).
3. If the displayed frequency is correct, press the [FCN]
key to advance to the next value.
If a new frequency is desired, press the [CLR] key
followed by the digits of the desired frequency. Then
press the [ENT] key to store this frequency and
automatically advance to the next value.
4. After the receive frequency is set, the upper part of
the display will show PRG RX CG. This is the Code
Guard value for Channel 1 receive.
NOTE: 0.0 indicates carrier squelch operation (no
Code Guard).
If the displayed value is correct, press the [FCN] key
to advance to the next value.
If a new value is desired, press the [CLR] key to
reset the display to 0.0. Press the number keys 0
thru 9 to enter a Tone Code Guard value. See
"Tone Code Guard Values" on page 2-14.
To enter a Digital Code Guard value press the [#]
key, causing the letter D to appear followed by three
zeros. Enter the desired digital code using keys 0
thru 7 (keys 5 & 9 do not respond). See "Digital
Code Guard Values" on page 2-14. Pressing the
[PRI] key after the three-digit code has been
entered allows the digital code to be inverted. When
the displayed value is correct, press the [ENT] key
to store the Code Guard value and automatically
advance to the next value.
5. After the receive Code Guard is set, the upper part of
the display will show PRG TX. This is the
transmitter frequency for Channel 1. If it is correct,
press the [FCN] key to advance to the next value.
Installation and Programming GMH Series VHF Radio
Page 2-12
BK RADIO
If you wish to change it, press the [CLRJ key
followed by the frequency in MHz then [ENT] to
store the new frequency and automatically advance
to the next value.
Only valid frequencies will be operable.
6. After the transmit frequency is set the upper part of
the display will show PRG TX CG. This is the Code
Guard value for Channel 1 transmit (0.0 indicates
carrier squelch). If this value is correct press the
[FCN] key to advance to the next value. To enter a
new value, press the [CLR] key to reset the display
to 0.0. Press the number keys to enter a Tone Code
Guard value. See "Tone Code Guard Values" on
page 2-14.
To enter Digital Code Guard, first press the [CLR]
key, then the [#] key, causing the letter D to appear
followed by three zeros. Enter the desired digital
code using keys 0 thru 7 (keys 8 & 9 do not
respond). See 'Digital Code Guard Values" on page
2-14. Pressing the [PRI] key after the three digit
code has been entered allows the digital code to be
inverted. When the displayed value is correct, press
the [ENT] key to store the Code Guard and
automatically advance to the next value.
7. After the transmit Code Guard is set, the display will
show the channel label. If this label is correct press
the [FCN] key to proceed to the entry point.
If a new channel label is desired, follow the
instructions under "Group Label" on page 2-9.
8. After the channel label is set, the display will return to
the Channel 1 starting point. If you wish to review
the frequencies and Code Guard values in Channel
1, subsequent pressing of the [FCN] key will show
each value and then return to the Channel 1 starting
point.
9. At the starting point for Channel 1, the display will
show PRG Ch 001. Press the number keys for
another channel number to gain access to the
frequencies and Code Guard values for that
channel. Each channel is then programmed using
the same steps described for Channel 1.
2.2.8 Leave Programming Mode
1. Rotate the OFF-VOL knob counterclockwise to the
Off position.
2. The radio will be in normal operation mode the next
time it is turned on.
GMH Series VHF Radio Installation and Programming
BK RADIO
Page 2-13
2.3 CLONING RADIO SETTINGS
A portable radio with a keyboard and display can transfer its programmed settings to an GMH radio
by using a cloning cable. A radio cannot transfer Alphanumeric display settings, including channel
labels and group labels.
Both units must be of the same frequency band. Settings for any group in a portable radio can be
downloaded to any group in the GMH radio. The GMH radio must be programmed with groups of 14
channels. Cloning can only be accomplished group by group. To perform group cloning:
1. With the portable radio in normal operation mode,
press the [#] key followed by number keys to select
the group to be downloaded.
2. Set the GMH radio to the group that is to receive the
download, using the same method as in step 1, or
by pressingthe GRP button and turning the Channel
Select knob.
3. Connect the Master end of the cloning cable into the
microphone connector of the portable radio. This is
the cable end with the pushbutton Master switch.
4 Put the portable radio into programming mode by
holding down the Master switch and pressing the
[FCN] key until the display shows ---ID.
5. Enter the correct Password Code.
6. Press the [FCN] key repeatedly to review the values
in Channel 0. Make any required changes at this
time.
7. Attach the other end of the cloning cable into the
microphone connector of the EM H radio to be
cloned.
8. Press the [*] key on the portable radio. The display
will flash PROG, signifying that the radio is ready to
download.
9. Press the [FCNJ key. The program in the portable
will download to the GMH. The GMH will send back
the program to the portable to verify successful
cloning.
10. If the download was successful, the portable radio
will resume flashing PROG. Turn off the GMH radio.
Disconnect the cable. Normal radio operation will
occur the next time the GMH radio is turned on.
11. If the download was not successful the portable
radio will flash FAIL, followed by continuous beeps.
Failure to download the portable program can be
due to:
A. Incorrect radio types.
B. Improper connection.
C. Failure to power up radio.
NOTE: To stop FAIL mode, press the [CLR] key,
turn off the radios, and start again at Step 1.
Installation and Programming GMH Series VHF Radio
Page 2-14
BK RADIO
2.3.1 Special Cloning Instructions
It is possible to change Channel 0 values on the portable radio, hold them in a temporary memory,
and download them to the GMH without actually entering them into the permanent memory of the
portable radio. This is convenient for sequential identification numbers used to identify a series of
portables in a radio system. Assuming that the frequencies, Code Guard values, and other Ch 0
values are common for all radios in the system, but that the radio identification number should be
unique to each radio, the following method would be used to clone additional radios for the system.
1. Program the portable radio with all frequencies,
Code Guard values, and Channel 0 values that will
be common to all GMH radios to be cloned.
2. Advance the display to show the portable radio's ID
number-for example, 100.
3. Press the [CLR] key; press 125. Do not press the
[ENT] key. Now 125 is in temporary memory.
4. Press the [*] key, connect the cable to the radios
and download to the GMH by pressing the [FCN]
key. ID number 125 is now stored in permanent
memory of the GMH.
5. After download, press the [CLR] key on the portable
radio. Disconnect the GMH. The portable radio
display will show that 125 is still being held in the
temporary memory of the portable radio.
6. Press the [PRI] key. This will increment the ID
number one digit to 126. (Note: any new number can
be entered at this point by pressing the [CLR] key
and using the digit keys to enter the new number.)
7. Press the [*] key. Connect the cable to the second
GMH and download by pressing [FCN].
8. Any number of radios can be coded with different or
sequential ID numbers using this technique. The ID
number in the permanent memory of the portable
radio will remain unchanged as 100.
2.3.2 Scan List and Priority Channel Cloning
When a portable radio downloads to an GMH, the
Scan List and Priority Channel designations are also
transferred to the GMH. This includes Priority Mode
and any lockout functions.
To program an GMH with a specific Priority Mode,
Priority Channel, and Scan List along with the
respective lockout functions (if desired), the portable
radio must first be programmed with these
parameters. The lockout functions cannot be held in
temporary memory. See the appropriate operating
procedures in Section 3 for selecting the Scan List,
Priority Channel, and Lockout functions. See
"Priority Scan" on page 2-6 for Priority Mode
selection procedures.
GMH Series VHF Radio Installation and Programming
BK RADIO
Page 2-15
2.3.2 Programming By Computer
Programming a radio from a computer is not covered in this manual. Contact BK Radio for the
programming cable, software, and manual required.
2.3.3 Tone Code Guard Values
The tone Code Guard system may be set for any frequency in the range of 67 to 255.9 Hz. However,
since most systems adhere to the Electronic Industry Association (EIA) standards, tones should be
selected from the following EIA list. In order to insure optimum performance, tone selection for use on
the same radio frequency (RF) channel or adjacent channels in the same coverage area should be
made from one of the Groups A, B, or C to the maximum degree possible. BENDIX/KING
guarantees optimum receiver performance only if tone frequencies below 220 Hz are chosen.
GROUPA GROUPB GROUPC
67.0 (XZ) *151.4 (5Z) 71.9 (XA) 146.2 (4B) 74.4
77.0 (XB) 162.2 (5B) 82.5 (YZ) 156.7 (5A) 79.7
88.5 (YB) 173.8 (6A) 94.8 (ZA) 167.9 (6Z) 85.4 (YA)
*100.0 (1Z) 186.2 (7Z) 103.5 (1A) *179.9 (6B) 91.5 (ZZ)
107.2 (1B) 203.5 (M1) 110.9 (2X) 192.8 (7A)
114.8 (2A) 218.1 (M3) *118.8 (2B) 210.7 (M2)
123.0 (3Z) 233.6 127.3 (3A) 225.7 (M4)
131.8 (3B) 250.3 136.5 (4Z) 241.8
141.3 (4A)
* 50/60 Hz power distribution systems could cause falsing.
The assignments in a given area shall be made from within one of the Groups: A, B, or C.
2.3.4 Digital Code Guard Values
Codes for the Digital Code Guard system may be chosen from the following list. This can be done
during the code programming of the system. Usually systems using direct unit to unit transmission
(systems without mobile relays, repeaters, remote control, etc) may use codes from the table.
Systems with relays etc. may use code variations for system control and operational efficiency. The
system operator or engineer should be consulted regarding the operational requirement on such
systems.
023 065 131 165 245 315 411 466 612 703
025 071 132 172 251 331 412 503 624 712
026 072 134 174 261 343 423 506 627 723
031 073 143 205 263 346 431 516 631 731
032 074 152 223 265 351 432 532 632 732
043 114 155 226 271 364 445 546 654 734
047 115 156 243 306 365 464 565 662 743
051 116 162 244 311 371 465 606 664 754
054 125