Simoco EMEA Ltd SB2K5354O2O2V Manual De Usuario
SGD-SB2025NT-TUM, Part 1
Jan 12
Page 5
CONTENTS
6.1.10
Mute Threshold Setting .......................................................................................... 50
6.2
M
ODULE
L
EVEL
T
EST
P
ROCEDURES
.................................................................................. 52
6.2.1
Exciter Module ....................................................................................................... 52
6.2.2
Receiver Module .................................................................................................... 53
6.2.3
Power Amplifier Module ......................................................................................... 55
6.2.4
VCO Board............................................................................................................. 56
6.2.5
Microcontroller Module ........................................................................................... 57
7
FAULT FINDING PROCEDURES ....................................................................................... 58
7.1
SB2025
B
ASE
S
TATION
.................................................................................................... 58
7.1.1
Transmitter Section ................................................................................................ 58
7.1.2
Receiver Section .................................................................................................... 59
7.2
M
ICRO
C
ONTROLLER
PCB ................................................................................................ 59
7.3
R
ECEIVER
M
ODULE
........................................................................................................... 60
7.3.1
VCO Locking.......................................................................................................... 60
7.3.2
Rx Front End.......................................................................................................... 60
7.3.3
IF Section............................................................................................................... 60
7.4
E
XCITER
M
ODULE
............................................................................................................. 61
7.4.1
VCO Locking.......................................................................................................... 61
7.4.2
RF Power ............................................................................................................... 61
7.5
P
OWER
A
MPLIFIER
............................................................................................................ 61
8
DRAWINGS......................................................................................................................... 63
8.1
C
URRENT
D
RAWINGS
........................................................................................................ 63
9
SPARES.............................................................................................................................. 71
APPENDICES
A
SB2025 Frequency Bands.
B
Channel Select DIP Switch Settings.
C
Configuration Procedure Cable Requirements.
D
SB2025 Micro Controller PCB Link Settings.