Motorola ASTRO SPECTRA Service Manual page 74

5-8
Test Name
PL Modulation Change frequency to 1st channel
(radios with test frequency**;
conventional, clear B/W to narrow
mode, coded
squelch operation
only)
Talkaround Change frequency to conventional
Modulation (radios talkaround frequency.
with conventional, Mode: PWR MON
clear mode, deviation, attenuation to –70,
talkaround input to RF In/Out
operation only) Monitor: DVM, ac volts
Set 1 kHz Mod Out level for 80
mVrms at dummy microphone.
Talkaround Change frequency to conventional
Modulation (radios talkaround frequency.
with conventional, Mode: PWR MON
secure mode, deviation, attenuation to –70,
talkaround input to RF In/Out
operation only) * Monitor: DVM, ac volts
Mod: 1 kHz out level for 80 mVrms
at dummy microphone.
* The secure mode, talkaround modulation test is only required for radios that do not have clear mode
talkaround capability.
** Test frequencies are listed in
February 3, 2003
Table 5-5. Transmitter Performance Checks (Continued)
System Analyzer
Table 5-2 .
Performance Checks: Transmitter Performance Checks
Test
Radio
Condition
TEST MODE, Remove
1 TPL modulation input
from dummy
microphone.
Press and hold
PTT switch.
Conventional Press and hold
talkaround PTT switch.
personality
(clear mode
operation)
1 CSQ
Conventional Press and hold
talkaround PTT switch.
personality
(secure mode
operation).
Load key into
radio 1 sec.
Comments
Deviation:
VHF, UHF, and 800
MHz:
>= 500 Hz but <= 1000
Hz
Deviation:
UHF and 800 MHz:
>= 3.8 kHz but <= 5.0
kHz
Deviation:
UHF and 800 MHz:
>= 3.6 kHz but <= 4.4
kHz
6881076C20-E