Motorola GM140, Базовое руководство по обслуживанию

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RF Test Mode 4-5
* See Table 4-4
Voice
Modulation Mode: PWR MON
4th channel test
frequency*
atten to -70, input to RF
In/ Out
Monitor: DVM, AC Volts
Set 1kHz Mod Out level
for 800mVrms at test
set, 800mVrms at AC/
DC test set jack As above As above,
meter selector
to mic Deviation:
2.5 kHz Max.
(12.5 kHz Ch. Sp).
4 kHz Max.
(20 kHz Ch. Sp).
5 kHz Max.
(25 kHz Ch. Sp).
Voice
Modulation
(internal) Mode: PWR MON
4th channel test
frequency*
atten to -70, input to RF
In/ Out TEST MODE,
Test Channel 4
carrier squelch
output at
antenna Remove
modulation
input Deviation:
2.5 kHz Max.
(12.5 kHz Ch. Sp.).
4 kHz Max.
(20 kHz Ch. Sp.).
5 kHz Max.
(25 kHz Ch. Sp.).
DTMF
Modulation As above,
4th channel test
frequency* TEST MODE,
Test Channel 4
DTMF output at
antenna As above Deviation:
1.4-1.9 kHz
(12.5 kHz Ch. Sp.).
2.3-3.0 kHz
(20 kHz Ch. Sp.).
2.9-3.8 kHz
(25 kHz Ch. Sp.).
PL/DPL
Modulation As above
4th channel test
frequency*
BW to narrow TEST MODE,
Test Channel 4
TPL
DPL As above Deviation:
0.25-0.5 kHz
(12.5 kHz Ch. Sp.).
0.4-0.8 kHz
(20 kHz Ch. Sp.)
0.5-1.0 kHz
(25 kHz Ch. Sp.).
Table 4-5 Transmitter Performance Checks (Continued)
Test Name
Communications
Analyzer
Radio Test Set Comment