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Service Manual
7. UHF3 (350-400 MHz) Information
141
7.5 Block Diagram
Block Diagram (RF Section)
Pre-Driver 2
Drive-stage
Final-stage
Tx/Rx Switch
Low-Pass Filter
Tx_VCO
AD9864
Frequency
Synthesizer
Rx_VCO
Band-Pass Filter 1
Low-Noise Amp
Band-Pass Filter 2
Mixer
IF Filter
IF Processor
IF Amp
Ref. Osc
19.2 MHz
MOD1
MOD2
+F
req
Erro
r
Sh
ift
OMAP
4CH DAC
GPS/BDS
Module
BPF
HPF
ANT
Microstrip
Matcher
TV1_APC
RF Power
Detector
Gate Voltage Control
LPF
4-Pole RC Filter
RX/TX VCO
Amplifier
TO OMAP
Subtracter
TV1 /APC
I/Q Signal
From OMAP
TX VCO
TV1_APC
Reference OSC Signal
CV Buffer
Pi Attenuator
1
2
Samp
ling
R
esistor
BATT+
I/V Convertor
Stop Band Filter
Adapt
SW
Adapt
Control
Low-Noise Amp
OP
Pre-Driver 1
RX/TX VCO
Buffer
LPF
P
i
A
tt
e
n
u
a
to
r
1
2
ATT:-1dB
LPF
Pi Attenuator
1
2
CV
SW
CV-Read
Control
CV OUT
Содержание RDR9000
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Страница 45: ...Service Manual 6 UHF1 400 470 MHz Information 35 6 4 PCB View PCB View Main Board Top Layer ...
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Страница 49: ...Service Manual 6 UHF1 400 470 MHz Information 39 PCB View Rear Board Bottom Layer Figure 6 5 PCB View ...
Страница 146: ...Service Manual 7 UHF3 350 400 MHz Information 136 7 4 PCB View PCB View Main Board Top Layer ...
Страница 147: ...Service Manual 7 UHF3 350 400 MHz Information 137 PCB View Main Board Bottom Layer ...
Страница 148: ...Service Manual 7 UHF3 350 400 MHz Information 138 PCB View Control Head Top Layer PCB View Control Head Bottom Layer ...
Страница 149: ...Service Manual 7 UHF3 350 400 MHz Information 139 PCB View Rear Board Top Layer ...
Страница 150: ...Service Manual 7 UHF3 350 400 MHz Information 140 PCB View Rear Board Bottom Layer Figure 7 5 PCB View ...
Страница 248: ...Service Manual 8 VHF 136 174 MHz Information 238 8 4 PCB View PCB View Main Board Top Layer ...
Страница 249: ...Service Manual 8 VHF 136 174 MHz Information 239 PCB View Main Board Bottom Layer ...
Страница 250: ...Service Manual 8 VHF 136 174 MHz Information 240 PCB View Control Head Top Layer PCB View Control Head Bottom Layer ...
Страница 251: ...Service Manual 8 VHF 136 174 MHz Information 241 PCB View Rear Board Top Layer ...
Страница 252: ...Service Manual 8 VHF 136 174 MHz Information 242 PCB View Rear Board Bottom Layer Figure 8 5 PCB View ...
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