Motorola RADIUS CM200 Basic Service Manual page 41

RF Test Mode
Test Name Communications Analyzer
Reference Mode: PWR MON
Frequency 4th channel test frequency*
Monitor: Frequency error
Input at RF In/Out
Rated Audio Mode: GEN
Output level: 1.0mV RF
4th channel test frequency*
Mod: 1kHz tone at
3kHz deviation
Monitor: DVM: AC Volts
Distortion As above, except to distortion
Sensitivity As above, except SINAD,
(SINAD) lower the RF level for 12dB
SINAD.
Noise RF level set to 1mV RF
Squelch
Threshold
(only radios
with
conventiona
l system
need to be
tested)
As above, except change
frequency to a conventional
system. Raise RF level from
zero until radio unsquelches.
* See Tables 3-4.
Table 3-6 Receiver Performance Checks
TEST MODE,
Test Channel 4
carrier squelch
output at
antenna
TEST MODE
Test Channel 4
carrier squelch
As above
As above
As above
out of TEST
MODE; select a
conventional
system
Radio Test Set
PTT to
continuous
(during the
performance
check)
PTT to OFF
(center),
meter selector
to Audio PA
As above
PTT to OFF
(center)
PTT to OFF
(center),
meter
selection to
Audio PA,
spkr/ load to
speaker
As above
3-5
Comment
Frequency error to
be: 186 Hz VHF1
200 Hz VHF2
568 Hz UHF2
600 Hz UHF3
Set volume control
to 8.10Vrms
Distortion <5.0%
RF input to be
<0.3 V
Set volume control
to 3.16Vrms
Unsquelch to occur
at <0.25 V.
Preferred SINAD =
9-10dB