Service manual

ALIGNMENT PROCEDURE
5-10
November 2001
Part No. 001-7240-001
5.16 TEST CODE FUNCTIONS
5.16.1 GENERAL
When the special test operating code has been
loaded as described in Section 5.2.3, various test chan-
nels and test functions can be selected. The functions
selected by the various keys and the section in which
they are described are as follows:
Key Function (See Section)
SYS Channel select mode (5.16.2)
GRP Modulation select mode (5.16.3)
FCN SYS RF power toggle (5.16.4)
FCN GRP Wide/Narrow band select (5.16.4)
FCN 1 Microphone mute (5.16.4)
FCN 4 Carrier squelch (5.16.4)
Red Button Parameter Edit Mode (5.16.5)
5.16.2 TEST CHANNELS
Up to 17 test channels can be selected. To select
the channel select mode, press the SYS key and then
press the “*” key to increase the channel number and
the “#” key to decrease the channel number. The
selected channel frequency is indicated by the left-
most six characters of the display (the right digit indi-
cates the group number as described in the next
section). The last selected channel is saved at power
down. The test channels are listed in Table 5-1.
5.16.3 MODULATION MODES
Up to seven different subaudible modulation
signals can be selected. To select the modulation select
mode, press the GRP key. The selected modulation
signal is indicated by the group number displayed as
the right-most digit in the display. Press the “*” key to
increase the group number and the “#” key to decrease
the group number.
The last selected group is saved at power down,
and the DCS/CTCSS schemes of Groups 4-7 are also
active in the receive mode. The modulation signals
selected by Groups 1-7 are as follows:
Group Modulation Signal
1 No transmit subaudible modulation
2 134 Hz square wave
3 Tx data filter bypassed, 134 Hz square wave
4 DCS (Digital Call Guard squelch) 023 code
5 CTCSS (Tone CG squelch) 67.0 Hz code
6 CTCSS (Tone CG squelch) 100.0 Hz code
7 CTCSS (Tone CG squelch) 210.7 Hz code
5.16.4 MISCELLANEOUS FUNCTIONS
The following functions can be selected by
pressing the FCN key and then another key:
FCN SYS - Toggles RF output power. Low power is
indicated by the “
L” icon in the display.
FCN GRP - Toggles receive IF bandwidth. Narrow
band is indicated by “
C” in the display.
FCN 1 - Toggles microphone mute. The microphone
is muted when is indicated in the display.
FCN 4 - Selects carrier controlled squelch regardless
of the CTCSS/DCS code selected by the Group
function. This mode is indicated when is
displayed.
Table 5-1 Test Channels
Channel
Tx/Rx Freq.
(MHz)
1 430.0125
2 432.5375
3 435.1125
4 437.5375
5 440.0125
6 442.5375
7 445.1125
8 447.5375
9 450.0125
10 452.5375
11 455.1125
12 457.5375
13 460.0125
14 462.5375
15 465.1125
16 467.5375
17 469.9875