Performance Checks: Transmitter Performance Checks 5-9
Table 5-8. Transmitter Tests for ASTRO Conventional Channels – APX 3000
Test Name System Analyzer Radio Test Set Comments
RF Power Mode: Proj 25 Std
RF Control: Monitor
Meter: RF Display
Radio Tuner
Software not used.
Radio: Out of
TEST MODE;
Select a
conventional
ASTRO channel
PTT to continuous
(during
measurement).
UHF1: 1–5 Watt
UHF2: 1–5 Watt
VHF: 1–5 Watt
700: 1–2.5 Watt
800: 1–3 Watt
Frequency
Error
As above As above As above Error ≤ ±1.0 kHz
Frequency
Deviation
As above Radio Tuner
Software
(Transmitter Test
Pattern screen) is
required)
High use: Symbol
Rate PAT
Low use: Low
Symbol Rate P
PTT to OFF
(center)
D
HIGH
≥ 2.543 kHz but
≤ 3.110 kHz
D
LOW
≥ 0.841 kHz but
≤ 1.037 kHz
(Use test setup shown in
Figure 6-1)
* These tests require a communications system analyzer with the ASTRO 25 test options.
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