Programming The Gp68 Radio; Operator Controls And Indicators; Programming The Radio Parameters; To Program A Channel - Motorola GP68 Service Manual

Radio Programming Information

Programming the GP68 Radio

Programming the GP68 Radio

Operator Controls and Indicators

SIG SQL
B
A
Figure 4-5 Keypad Buttons used for programming the
GP68 Radios.
When programming is enabled, certain buttons have addi-
tional functions:
SQL
• - Used to program the squelch level (quick
B
press) or PL/DPL code (long press). During DTMF
dialing, or editing of phone number and IDs, this key
specifies DTMF digit ' B '.
LOW
• -Toggles between High and Low transmit
C
power levels (quick press); also used to program the
frequency step size (long press). During DTMF dial-
ing, or editing of phone number and IDs, this key
specifies DTMF digit ' C '.
• - Toggles between Megahertz(MHz) Mode
(Frequency display) and Channel Mode (Channel
display). When editing phone numbers and IDs, this
key acts as a backspace (rubout) key.
• - Selects the TX (repeater) offset frequency
type. When editing phone numbers and IDs, this key
scrolls the display to the left.

Programming the Radio Parameters

All programming functions are performed while the radio is
in the Megahertz (MHz) Mode (Frequency Display). If the
radio is in Channel Mode (Channel Display), momentarily
press to enter the MHz mode.

To Program a Channel

There are twenty memory channels available. Each memory
channel consists of a receive/transmit frequency pair, the
type of TX offset, the offset frequency, the Receive PL/DPL
Code, the Transmit PL/DPL Code, and the default Squelch
Mode Setting (CSQ, CTCSS and Signalling Squelch).
If required, momentarily press
1
mode.
4-4
LOW SCAN
D
C
N-DEL
1 2 3
4 5 6
7 8 9
0
to enter the MHz
Select the desired frequency, type of TX offset and off-
2
set frequency (see page 4-5 onwards).
Press and hold the Enter Button for 3 seconds.
3
The LCD displays the following to prompt you to select the
channel number (Figure 4-6).
The channel number flashes if it is unprogrammed, but lights
continuously if it is programmed.
4 Use the Channel Selector Knob to select the desired
channel number.
5 Momentarily press the Enter Button again to program
the selected memory channel.
The radio remains in MHz mode after successful program-
ming of the channel.
If the selected memory channel was already
programmed (channel number lit continu-
ously), the new frequency information over-
writes the previous information in memory.

To Verify a Programmed Channel

All the data for a programmed channel (receive and transmit
frequencies, TX offset type, offset frequency, receive and
transmit PL/DPL codes, and default Squelch Mode Setting)
can be copied over into the MHz mode for verification.
2
Figure 4-7 Verifying a Programmed Channel.
If required, momentarily press
1
ory mode.
Rotate the Channel Selector Knob to the desired mem-
2
ory channel number.
Press and hold the Enter Button for 3 seconds.
3
6881086C09-O
GP68 Portable Radios Service Manual
Figure 4-6 .
WARNING
1
1
to enter the Mem-
March, 1997