F800 CIRCUIT DESCRIPTION
5 (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
Frequency Generator
Receiver
Transmitter
Power
Supply
A
n
t
e
n
n
a
S
w
i
t
c
h
SQ
AF
RSSI
AF Data
Locking
Data
Modulation
TX on
Power Ind
5V
10VR
10VT
12V
12V
Power Red
To CPU board
External connector
RF tunning
Fig A: Block diagram radio board, simplex version
The radio board is a multilayer printed circuit board and the majority of the
components are surface mounted on the PCB. To obtain proper grounding and the
required screening, the board is attached to the F800 chassis by nine screws. The
radio board is exchanged as one unit during normal field service and requires no
tuning.
There are three connectors on the radio board, one external for DC supply and two
internal for signals between the CPU board and the radio board.
To Next Page
Loading...
