Operating instructions

46882-311D 3-1
Chapter 3
LOCAL OPERATION
Contents
About this chapter ....................................................................................................................3-4
Front panel layout.....................................................................................................................3-4
Rear panel controls and connectors ...........................................................................................3-8
Getting started ..........................................................................................................................3-9
(Applying power and selecting test modes) ........................................................................3-9
Test mode screens and menus ...................................................................................................3-9
HELP/SETUP..................................................................................................................3-10
Bar charts ...............................................................................................................................3-13
Spectrum analyzer ..................................................................................................................3-14
Oscilloscope...........................................................................................................................3-14
Using the test modes..............................................................................................................3-15
Brief descriptions....................................................................................................................3-15
Tx test (transmitter testing) .....................................................................................................3-17
Overview.........................................................................................................................3-17
Connections.....................................................................................................................3-18
Setting up ........................................................................................................................3-19
Making measurements .....................................................................................................3-25
External attenuators .........................................................................................................3-31
Rx test (receiver testing) .........................................................................................................3-36
Overview.........................................................................................................................3-36
Connections.....................................................................................................................3-37
Setting up ........................................................................................................................3-38
AF input level measurement ............................................................................................3-41
Making measurements .....................................................................................................3-43
Dx test (duplex testing)...........................................................................................................3-50
Overview.........................................................................................................................3-50
Systems..................................................................................................................................3-51
Spectrum analyzer ..................................................................................................................3-52
Overview.........................................................................................................................3-52
Setting up ........................................................................................................................3-53
AF test (audio frequency testing) ............................................................................................3-59
Overview.........................................................................................................................3-59
Setting up ........................................................................................................................3-60
Input level measurement ..................................................................................................3-60
Input filtering ..................................................................................................................3-61
Distortion measurement ...................................................................................................3-61
Incremental adjustment keys...................................................................................................3-62
General............................................................................................................................3-62
Assigning ........................................................................................................................3-63
Use within spectrum analyzer mode.................................................................................3-64
Tones......................................................................................................................................3-64
Tones sub-mode...............................................................................................................3-64
Observing tones signals in other test modes .....................................................................3-65
Signal routeing ................................................................................................................3-65
RF input attenuators.........................................................................................................3-65
Sequential tones......................................................................................................................3-66
Overview.........................................................................................................................3-66
Testing sequential tone receivers......................................................................................3-66
Testing sequential tone transmitters .................................................................................3-69
CTCSS ...................................................................................................................................3-70
contd./...