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Top Products
March 1999
Part No. 001-2009-600
10-11
RECEIVER SCHEMATIC
FIGURE 10-16
R201
2.7k
C202
4.3pF
C201
5.6pF
L226
Q201
3636
R203
200
+12V
C205
6.8pF
+
C203
4.7
C204
33pF
+
C336
4.7
C337
56pF
C207
3pF
L227
L202 L203L201
L205 L206L204
C208
33pF
L228
4
RF IF
GND A
GND B
GND C
LO
C209
8.2pF
5
2
6
1
3
U201
LRMS-2H
C267
39pF
L207
Z201
Z202
C374
1.5-5pF
C262
4.3pF
L213
.82
C270
10pF
L209
C210
10pF
R208
1.8k
R209
680
R211
51
C211
.01
R313
220
C212
.01
+C213
4.7
C214
7.5pF
C293
.01
L211
Z203 Z204
C375
1.5-5pF
C264
4.3pF
L230
.82
C301
39pF
L225
R322
560
C338
.01
MIXER IN
16
OSC B
1
GND
15
MIXER
OUT
Z205
IF IN
U202
MC3371D
C217
.1
C219
.1
R214
51k
Z213
C221
.1
R215
1.8k
C323
.001
450 kHz
Vcc
DEC 1
DEC 2
3
5
3
1
2
65
4
47 8
QUAD
+12V
R213
5.1k
1
AUDIO
C220
.001
R280
100k
+
U203B
MC3317B
R256
20k
R284
5k
R324
10k
R262
10k
+5V
C367
27pF
R323
0
R263
240k
+
C240
4.7
5
7
6
R264
5k
9 RX WBAND
R212
100k
C218
.001
+
U203A
MC3317B
3
2
9
13
METER
R261
5k
7 RSSI
J201
TP3
TP4
Q202
3602
A006
VCO
753-772 MHz
CNTL
TA P
MOD
GND
GND
GND
RF OUT
+12V
C269
27pF
+12V
L220
FREQ
ADJ
C268
1.5pF
RT101
1k
1
U207
LM78L12
V OUT
GND
GND CGND B
GND A
2
3
6
7
V IN
+
C292
1.5
C291
.001
+15V
+
C294
4.7
C295
.001
C317
.001
C318
.001
C322
.001
+12V
SOURCE
NOTES:
1. ALL RESISTORS ARE IN OHMS AND ALL CAPACITORS
IN MICROFARADS
UNLES OTHERWISE SPECIFIED.
A201
L221
RF IN
RF AMP
MIXER
52.95 MHz
4-POLE
CRYSTAL FILTER
52.95 MHz
4-POLE
CRYSTAL FILTER
IF AMP
C215
5.6pF
C216
5.6pF
C371
1.3pF
R204
270
R202
200
C311
.001
C372
1.3pF
C321
.001
U205
MC145151DW2
27
OSC IN
PD OUT
R245
3.9k
C370
27pF
C249
.01
Q206
3658
R243
3.3k
R244
3.3k
R240
270
R242
2.7k
C244
.01
L 217
10uH
R241
10
+6V
C248
.001
C306
18pF
Q207
3658
R281
1k
1
F IN
C241
.1
+6V
9
R
R316
10k
HS CS RX 16
J201
R320
10k
HS LK RX 19
8
10
C324
100pF
28
V
FV
Vcc
LOCK DET
N4
C242
.01
2
GND
C250
100pF
C254
100pF
Q211
3658
U209
MC145190
20
REF IN
R272
240
C257
.1
C331
27pF
+6V
12
Vcc
C253
.01
Q210
3658
R249
3.3k
R251
3.3k
R250
270
R248
2.7k
C251
.01
L 218
.1uH
R312
10
+6V
C252
.001
C328
820pF
C307
100pF
C260
27pF
Q208
3636
R279
1.6k
R278
1.6k
R277
150
R275
6.8k
C258
27pF
L 219
.018uH
R274
10
+6V
C259
27pF
C309
1pF
Q209
3636
R299
36
C309
3pF
C334
27pF
R273
100
11
F IN
TP2
C358
3.9pF
6
PD OUT
C330
27pF
C256
.1
R271
910
+6V
19
V DD
R232
10k
RF DATA 20
R231
10k
RF CLK 18
14
18
R276
47k
C333
27pF
8
DATA
CLK
GND
RX
7
17
R269
1k
SYN CS RX 12
R270
1k
SYN LK RX 14
2
ENABLE
LOCK DET
17
15
11
2
R319
10k
+6V
C325
100pF
C332
27pF
10
F IN
R268
1k
+
C308
4.7
C255
.1
R267
294
+12V
5
V PD
C261
3.3pF
C243
.1
C244
.1
R234
1k
+6V
17
21
3
16
15
T/R
N6
N5
WO 15
WO 14
C368
27pF
C305
.01
Q203
3658
R221
180
C226
.01
R220
100
C238
390pF
C222
120pF
52.5 MHz
L216
.1uH
C237
5.6pF
L215
.1uH
C235
220pF
C236
220pF
Q205
3658
R230
270
C234
.01
L214
.1uH
C233
.01
+
C232
4.7
R229
10
+12V
R227
10k
R228
1k
C231
100pF
Y201
DC IN
3
5
2
46
7
C316
.01
+
C266
4.7
R315
270
+12V
TCXO 1.0 PPM
17.5 MHz
GNDA
GNDB
GNDC
RF OUTMOD
Q215
3636
Q214
3636
R291
1.3k
R292
75
C335
27pF
R290
1.5k
C272
18pF
C273
27pF
R300
36
C310
27pF
C356
2pF
EP206
R311
4.3k
L222
R293
51
C274
27pF
R294
10
+12V
C275
3.3pF
C271
5.6pF
Q216
3604
R296
1k
R295
390
C278
27pF
+
C279
4.7
R297
220
EP202
C277
6.8pF
C263
3.9pF
C288
6.8pF
Q217
4098
R265
1k
R266
220
C282
27pF
+
C281
4.7
R258
100
EP204
R283
100
R257
100
C280
5.6pF
L212
L224L223
L210
1 +15V
TP5
1
+
U204A
33172
3
2
R247
1k
CR201
R255
27k
R254
330k
C285
.001
R252
330k
R253
6.8k
13 RX INJ TP
C286
.001
+
C287
1.5
+15V
+
C289
4.7
C290
.001
+12V
C321
.001
C312
.001
C311
.001
SOURCE
RECEIVE
8
U206
LM78L12
V IN
GND
GND CGND B
GND A
2
3
6
7
1
V OUT
1
U208
LM78L05
V OUT
GND
GND CGND B
GND A
2
3
6
7
8
V IN
1
U210
LM78L12
V
OUT
GND
GND CGND B
GND A
2
3
6
7
8
V IN
R304
240
+
C298
4.7
R303
43
+
C299
4.7
C300
.001
C315
.001
C319
.001
+6V
SOURCE
+
C297
1.5
C296
.001
R302
220
R301
220
R314
220
+15V
+12V
SOURCE
C366
.001
+
C365
4.7
+
C364
1.5
C363
.001
+15V
R219
100
+6V
C313
.01
R217
3.3k
R218
2.7k
C24
.01
C225
.01
C227
.01
R224
100
+6V
R222
3.3k
R223
2.7k
Q204
3658
R226
270
C229
.01
C314
.01
C228
.01
R225
100
C230
.01
C369
27pF
WO 32
W201
TO TX
OCXO
4
R210
3.6k
+
C246
1
R321
510
R239
51
J202
TO OCXO
WO202
OCXO INPUT
+
C245
33
R246
1k
C247
56pF
+
U211
LMC7101
3
4
1
TP1
C304
27pF
TRIPLER
C265
27pF
C206
27pF
13
TEST 2
C302
27pF
6
8
7
5
2
1
4
3
CR206
5.6V
R298
100
CR205
5.6V
C284
1pF
R287
300
R286
18
R285
300
C323
.001
WO16
RX
+12V
RX
RX