Motorola SSETM 5000 - Manual (Page 69)

6881094C12-A November 11, 2004
Performance Checks: Transmitter Performance Checks 4-7
4.4 Transmitter Performance Checks
The following table outlines the performance checks for the transmitter.
Table 4-6. Transmitter 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
RF Power As above As above As above UHF R2 (450–488 MHz):
2–5 Watts
Voice
Modulation
(external) As above. Set fixed 1 kHz
audio level to 400 mV. As above As above Deviation:
(12.5 kHz)
≥ 2.1 kHz, but
≤ 2.5 kHz
(25 kHz) ≥ 4.1 kHz, but
≤ 5.0 kHz
Voice
Modulation
(internal) RF Control: Monitor
Meter: RF Display
Display: Bar Graphs
Freq: Selected radio TX
freq. As above Remove
modulation input.
PTT to OFF
(center) Press PTT button on radio.
Say “four” loudly into the
radio mic. Measure
deviation:
(12.5 kHz)
≥ 2.1 kHz but
≤ 2.5 kHz
(25 kHz) ≥ 4.1 kHz but
≤ 5.0 kHz
PL Modulation
(radios with
clear mode,
coded squelch
operation only) As above Conventional
coded squelch
personality (clear
mode operation)
or TPL channel
(test mode*) PTT to continuous
(during the
performance
check) Deviation:
(12.5 kHz)
≥ 375 Hz but
≤ 500 Hz
(25 kHz) ≥ 500 Hz but
≤ 1000 Hz
Secure
Modulation
(radios with
secure mode,
talkaround
operation only) As above Programmed
conventional
channel (secure
mode operation)
Load key into
radio. As above Deviation:
≥ 3.7 kHz but ≤ 4.3 kHz
* See Table 4-4 on page 4-4 .