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Motorola GP series Service Manual

Motorola GP series
300 pages
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4-6 UHF2 PCB 8485641Z02 Schematics
L340
390nH
HSMP3820
1
2
3
CR308
R317
1K
100pF
C395 C331
100pF
1K
R347
R5
C311
100K
R307R306
100K
CR304
C306
CR305
C312
7.5pF
12nH
L305
C313
11pF
L306
11.03nH11.03nH
L307
4.3pF
C316
NU
NU
R305
470
R304
12K
C321
100pF
C309
100pF
R303
1.5K
Q301
1
3
2
C307
0.1uF
0.1uF
C314
180nH
L304
C315
100pF
C310
0.1uF
R328
2.7
L303
22nH
R340
8.2K
11.03nH
L302
C308
100pF
100K
R301
12pF
C302
C305
8.2pF
CR301
CR302
4.3pF
C303
11pF
C304
R302
L301
100K
11.03nH
1
CR303
2
3
C301
8.2pF
RX_IN
1
SH304
SHIELD
1
SHIELD
SH302
1
SHIELD
SH301 SH303
SHIELD
1
RXFE Top Shield RXFE Bottom Shield Mixer Shield
RX Mixer Diode Shield
.01uF
C380
100K
R342
R5
DACRx
4.7pF
C381
R329
0
C318
11pF
C317
7.5pF
T301
4
6
3
1
2
XFMR
TP302
T302
XFMR
4
6
3
1
2
C320 C319
7.5pF 3.6pF
16.28nH
L309R348
3.6K
R336
C333
R5
NU
NU
33K
R327
R316
91K
Q315
1
3
2
18K
R318
R319
150
C396
NU
R300
2.2K
0.47pF
C397
1
33.0K
RT300
2
R334
Q316
1
3
2
VR300
R326
NU
NU
NU
NU
R325
6.8K
R338
R335
RT301
21
C391
NU
NU
NU
NU
R5
C370
100pF
R330
RSSI
RX_INJ
NU
R331
C372
Q310
1
3
2
C371
100pF
C386
NU
NU
NU
NU
0
R349
100pF
C374
C378
C373
NU
NU
C375
VCOBUF
100pF
R332
L321
0
R339
R5
NU
NU
R333
NU
R309
18
82pF
C322
L310
150nH
270
R308
270
R310
2
34
1
CR306
IF
-51.4dBm@450.125MHz
-51.2dBm@526.925MHz
-51.7dBm@450.125MHz
-52.6dBm@526.925MHz
-63.8dBm@45.1MHz
-24dBm@405.025MHz
-24.9dBm@481.825MHz
1.850V@-50dBm
0.508V
4.398V
-51dBm@450.125MHz
-51.2dBm@526.925MHz
Rx1 = -50dBm@450.125MHz rf signal
Rx2 = -50dBm@526.925MHz rf signal
probed using high impedence probe
UHF2 (450-527 MHz) Receiver Front End
ZMY0130222-O

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Motorola GP series Specifications

General IconGeneral
Operating Temperature-30°C to +60°C
Frequency Range136-174 MHz
Number of Channels16
Channel Spacing12.5 kHz / 25 kHz
Battery Life8 hours (with standard battery)
Operating Voltage7.5V DC
Ingress ProtectionIP54
MIL-STD810 C, D, E, F

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