Motorola Astro XTL 5000 Basic Service Manual

June 11, 2003 6881096C73-O
5-6 Performance Checks: Transmitter Performance Checks
5.5 Transmitter Performance Checks
Sensitivity
(SINAD)
As above, except SINAD, lower
the RF level for 12 dB SINAD
TEST MODE,
1 CSQ
Release PTT
switch.
RF input to be
< 0.25 µV
Noise Squelch
Threshold
(only radios with
conventional
system need to
be tested)
RF level set to 1 mV RF TEST MODE,
1 CSQ
Release PTT
switch.
Set volume control to
3.16 Vrms across the
speaker.
As above, except change
frequency to a conventional
system. Raise RF level from zero
until radio unsquelches.
Out of TEST
MODE;
select a
conventional
system
Release PTT
switch.
Unsquelch to occur at
< 0.25 µV
* Test frequencies are listed in Table 5-2.
Table 5-5. Transmitter Performance Checks
Test Name System Analyzer Radio
Test
Condition
Comments
Reference
Frequency
Mode: PWR MON
1st channel test frequency**
Monitor: Frequency error
Input at RF In/Out
TEST MODE,
1 CSQ
Press and hold
PTT switch.
Frequency error to be
± 150 Hz (800 MHz)
Power RF As above TEST MODE,
1 CSQ
Press and hold
PTT switch.
Refer to the Radio
Specifications in the
front of the manual.
Voice Modulation Mode: PWR MON
1st channel test frequency** atten
to –70,
input to RF In/Out,
Monitor: DVM, AC Volts
Set 1 kHz Mod Out level for
0.025 Vrms at test set,
80 mVrms at dummy microphone
or load box input
TEST MODE,
1 CSQ
Press and hold
PTT switch.
Deviation:
800 MHz:
>= 3.6 kHz but <= 5.0
kHz
See the Detailed
Service Manual for test
equipment
descriptions.
Voice Modulation
(internal)
Mode: PWR MON
1st channel test frequency** atten
to –70, input to RF In/Out
TEST MODE,
1 CSQ, output
at antenna
Remove
modulation input
from dummy
microphone or
load box.
Press and hold
PTT switch.
Press PTT switch on
microphone and say
“four” loudly into the
radio mic.
Measure deviation:
800 MHz:
>= 3.8 kHz but <= 5.0
kHz
See the Detailed
Service Manual for test
equipment
descriptions.
Table 5-4. Receiver Performance Checks (Continued)
Test Name System Analyzer Radio Test Condition Comments

Motorola Astro XTL 5000 Specifications

General

Brand	Motorola
Model	Astro XTL 5000
Category	Radio
Language	English