Motorola MTR2000 Manual page 30
Base station, repeater and receiver for analog conventional, and trunking systems 132 - 174 mhz
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Also See for MTR2000:
- Service manual (166 pages) ,
- Installation and operation manual (79 pages) ,
- Instruction / field service manual (43 pages)
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RECEIVER MODULE
MODEL TRD6431C/TRD6411C
10V
L2263
PREAMP_IN
39nH
C2271
18pF
68P81094E11-D
Schematics (Sheet 6 of 27)
12/26/01
A
R2260
R2261
2700
5600
C2262
C2263
10000pF
10000pF
Q2260
C2264
470pF
R2265
1000
B
470pF
R2270
L2262
470
33nH
C2269
0.97V
C2270
470pF
R2271
R2272
10
10
L2260
C2260
6.8µH
470pF
ignore
R2262
C2261
33
10000pF
R2263
4700
R2264
4700
C2265
C2266
470pF
10000pF
R2266
22
C2267
R2267
L2261
470pF
270
1800nH
R2269
L2264
39nH
10
5.4V
0.18V
Q2261
C2268
12pF
R2273
R2274
10
10
SH2260
PREAMP_BIAS
PREAMP_OUT
Pre-Amplifier Service Notes
Signal
Description/Nominal Signal Levels
Path
Preamp constant current source.
A
Typical current is approx. 75mA.
Preamplifier provides approx. 16dB gain.
B
Input and output are approx. 50 Ohm.
Intercept point of preamp is approx. +17dBm.
PRE AMPLIFIER
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