F800 CIRCUIT DESCRIPTION
1 (25)
Uppgjord (även faktaansvarig om annan) -
Prepared (also subject responsible if other)
Nr
-
No.
KL/ECS/S/LT Magnus Lindahl
ECS/S/LT-96:5044
Dokansv/Godk -
Doc respons/Approved
Kontr
-
Checked
Datum
-
Date
Rev
File
KI/ECS/S/LTC
1996-06-06
A
965044.DOC
F800 Circuit description
CONTENTS:
INTRODUCTION
.........................................................................2
Radio unit ............................................................................2
Line interface .....................................................................3
Programming
......................................................................3
Options
...............................................................................3
RADIO BOARD
............................................................................4
Frequency generator
.....................................................6
Transmitter
.......................................................................10
Antenna switch .................................................................13
Receiver
............................................................................14
DC power supply ..............................................................17
PROCESSOR BOARD
.............................................................19
Processor And Peripheral Circuits ....................................19
Incoming Speech ..............................................................20
Outgoing Speech ..............................................................21
Modulation Circuits ...........................................................23
Tunning Of Front End .......................................................23
Channel Selection ............................................................23
Power Supply ...................................................................24
Connectors
.......................................................................25