3 receiver performance checks, Receiver performance checks -6, Table 4-5 – Motorola SSETM 5000 User Manual
Page 68
November 11, 2004
6881094C12-A
4-6
Performance Checks: Receiver Performance Checks
4.3
Receiver Performance Checks
The following table outlines the performance checks for the receiver.
Table 4-5. Receiver Performance Checks
Test Name
System Analyzer
Radio
Test Set
Comments
Reference
Frequency
RF Control: Monitor
Meter: RF Display
Display: Bar Graphs
Freq: Selected radio TX
freq.
TEST MODE CSQ
channel*
PTT to continuous
(during the
performance
check)
UHF R2 (450–488 MHz):
2.5 ppm
Rated Audio
RF Control: Gen
Output Level: -47 dBm
Freq: Selected radio RX
freq.
Mod: 1 kHz tone @ 3 kHz
dev.
Meter: AC Volts
As above
PTT to OFF
(center)
Set volume control to
3.74 Vrms
Distortion
As above, except
Meter: Ext Dist.
As above
As above
Distortion < 3.0%
Sensitivity
(SINAD)
As above, except
Meter: SINAD
As above
As above
RF input to be < 0.35 µV
Noise Squelch
Threshold
Set as for rated audio
check
Out of TEST
MODE
As above
Set volume control to
3.74 Vrms.
Set RF level to -130 dBm
and raise until radio
unsquelches.
Unsquelch to occur at
< 0.25 µV. Preferred SINAD
= 6-8 dB.
*
See