Radio Alignment Procedures; Test Setup; Figure 6-1. Radio Alignment Test Setup - ASTRO APX 7000 Basic Service Manual

Chapter 6 Radio Alignment Procedures
This chapter describes both receiver and transmitter radio alignment procedures.
6.1

Test Setup

A personal computer (PC) and tuner software are required to align the radio. Refer to the applicable
manual for installation and setup procedures for the software. To perform the alignment procedures,
the radio must be connected to the PC and to a universal test set. The radio alignment test setup is
shown in Figure
UNIVERSAL
BATTERY
ELIMINATOR
66009254001
DC POWER SUPPLY
(7.5V AT BATTERY
ELIMINATOR
TERMINALS)
6-1.
SMA-BNC
5880384G68
RADIO
COMPUTER
USB END IS NOT USED

Figure 6-1. Radio Alignment Test Setup

These radio alignment procedures should only be attempted by qualified
service personnel. Failure to perform alignment procedures properly may
result in seriously degraded radio or system performance.
TRANSMIT
BNC
RECEIVE
SET TO APPROX. 8mV FOR Tx
TEST SET
RLN4460_
PROGRAM/TEST CABLE
PMKN4013_
MODULATION ANALYZER
OR
30 dB PAD
SERVICE MONITOR
AEROFLEX
30 dB PAD
SERVICE MONITOR
RF GENERATOR
AUDIO IN TX
AUDIO GENERATOR
RX
SINAD METER
AC VOLTMETER
MEASURE 3.74Vrms FOR Rx