Codan Radio Communications UT-4D400 Manual Do Utilizador
P25 Digital UHF Transmitter Instruction Manual
IM23-001
iii
Contents
General Information ...............................................................
1
Introduction ................................................................................................
1
Performance Specifi cations .......................................................................
2
Theory of Operation ...............................................................
5
General ......................................................................................................
5
Jumper Functions and Standard Confi guration ........................................
7
Test Points .................................................................................................
8
Transmitter Programming ........................................................................
10
Transmitter Assembly and Adjustment.................................
13
Repair Note..............................................................................................
13
Transmitter Assembly and Adjustment.....................................................
14
Recommended Test Equipment List ........................................................
14
Frequency Change ..................................................................................
14
Digital Signal Processor Board Alignment ...............................................
15
Repeater System Confi guration...........................................
19
Digital Repeater .......................................................................................
19
Repeater System Troubleshooting...........................................................
20
Illustrations and Schematics ................................................
23
P25 Digital Transmitter Front Panel .........................................................
24
P25 Digital Transmitter Block Diagram ....................................................
25
P25 Digital Transmitter Component Layout - Bottom...............................
26
P25 Digital Transmitter Component Layout - Top ....................................
27
P25 Digital Transmitter Schematic Diagram ............................................
28
P25 Adapter Board Component Layout ...................................................
29
P25 Adapter Board Schematic Diagram ..................................................
29
Parts Lists ............................................................................
31
P25 Digital Transmitter Electrical Parts List .............................................
31
P25 Transmitter Mechanical Parts List ....................................................
34
P25 Adapter Board Parts List...................................................................
36
Revision History ...................................................................
37