Table of Contents
Advertisement
C316
R305
1000pF
3.3k
BANDPASS FILTER
C301
C304
C307
7pF
3pF
5pF
C305
C306
C308
C302
C303
3pF
18pF
3pF
7pF
18pF
D302
R301
D303
R302
100k
100k
C312
C313
0.01
L301
L302
0.01
Part of
J101
BP Filter Sel
8
DC-DC CONVERTER
U203
R217
TK11817
C5V
10
1
4
VI
VO
C225
2
6
OS
T1
0.1
L201
C224
3
5
+
DK
Gnd
4.7
R216
+ C219
C223
1k
4.7
0.047
C5V
+
C206
SYNTHESIZER
R206
10
U202
10
LMX1511
5
Vcc
4
C210
C208
Vpp
0.22
470pF
FIN 10
Clock
11
17
Clock
Data
13
15
Data
2
NC
Latch Enable
14
13
LE
C5V
7
LOCK DETECT
Gnd
Q201
8
LD
KRA102
C211
Lock Detect
R207
11
0.01
33k
6
DO
C207
R205
C5V
12.800 MHz TCXO
1000pF
2.4k
4
1
1
Vcc
Out
XIN
C202
C203
+
U201
0.1
4.7
2
Gnd
C5V
5
Gnd
R202
6
Gnd
1.5k
R204
TCXO
3
18
VC
120k
Mod
C201
10
R203
R530
82k
33k
VCO Mod
2
T5V
R224
C5V
R105
R102
Not Used
R104
0
8.2k
C105
R223
5.6k
470pF
10k
6
2
3
L102
R103
22nH
C106
5
3.6k
5pF
L101
U204
18nH
UMH9N
Q101
1
4
2SC3357
C102
WIDE/NARROW SWITCH
5pF
AMPLIFIER
Power Control
6
R306
R315
R5V
12k
10
RECEIVER
C317
R304
L303
8.2k
27nH
470pF
C315
15pF
BANDPASS FILTER
C318
L304
C322
C325
3pF
18nH
5pF
4pF
R303
Q301
680
AT-41533
C320
C321
C323
C324
C326
12pF
9pF
5pF
9pF
C314
S301
3pF
RF AMP
18nH
C330
R307
D305
2pF
100k
C331
0.01
L305
L215
2.2uH
C218
+
C220
0.1
4.7
SYNTHESIZER
+
C221
C222
0.1
10
RECEIVE VCO
(385-425 MHz)
L501
C530
C503
150nH
10pF
3.3pF
C501
C502
D501
L510
0.022
4pF
R210
39
TRANSMIT VCO
(430-470 MHz)
LOOP FILTER
C530
C533
R219
R220
R221
L531
470nH
9pF
4pF
68
1.5k
1.5k
C214
C216
C531
C532
R218
D531
0.1
L532
0.1
0.022
4pF
470
+
C215
2.2
R526
R539
68
C5V
150k
R540
C529
39k
560pF
BATT
BATT
C108
C109
C110
C140
C141
1000pF +
4.7
0.1
C134
1000pF
0.22
1000pF
PA MODULE
3
Vcc
U101
4
1
In
Out
M68732
Vbb Control
2
BATT
3
5
U102B
R125
TA75W01
L105
R121
1.8k
5
4
15k
+
2
7
6
U103
+
4
C137
C138
C136
UMD6N
0.01
470pF
4.7
1
R120
R122
68k
820
C132
1000pF
RF BOARD SCHEMATIC
8-2
R313
R5V
100
FIRST MIXER
C340
1000pF
L312
45.3 MHz CRYSTAL FILTERS
C341
390nH
24pF
C337
R314
XFL401
5pF
0
C328
R317
3pF
0
L308
1
2
3
Q302
22nH
C338
SGM2016
3pF
1
C327
4
2
L307
6pF
12pF
18nH
C336
R312
470pF
100
R308
D306
100k
R310
L310
C333
3pF
820
39nH
L306
Rx Freq Minus 45.3 MHz
T5V
L535
R551
27nH
120k
C551
3pF
Q535
C550
R550
2SC4226
9pF
82
R552
82
VCOs
R5V
R501
C510
C504
10
L503
470pF
470pF
R502
33nH
3.9k
R505
Q501
C511
6.8k
2SC4226
7pF
Q502
2SC4226
C505
R503
C507
8pF
C508
6.8k
7pF
470pF
C506
R504
R506
R507
22pF
330
5.6k
390
C540
R531
T5V
470pF
10
R532
C534
L533
0.01
3.3k
27nH
R537
C541
R543
3.3k
Q531
7pF
Q532
2SC4226
2SC4226
C539
C535
R533
C537
1.5pF
7pF
C538
6.8k
7pF
470pF
C536
R534
R535
R536
22pF
220
6.8k
330
D533
C143
C142
C144
C145
+
4.7
220pF
+
100pF
10
TRANSMITTER
DIRECTIONAL COUPLER
1
In
S101
Out
C130
2200pF
Forward Power
Co
POWER CONTROL
2
C123
R116
100pF
33k
D103
3
U102A
R115
TA75W01
2
33k
R111
R108
1
1.2k
4.7k
1
2
3
+
T5V
8
C126
C125
C124
R110
470pF
15k
220pF
330pF
C127
1000pF
C404
1000pF
R5V
R5V
C420
C421
C418
1000pF
R402
0.1
0.01
IF AMP
R401
1.5k
C406
180k
22pF
R400
XFL402
330
4
Q401
Vcc
2SC3356
3
1
3
16
Mix In
C403
C407
5pF
0.47
C401
14
2
N Rect
16pF
1
Osc 1
Osc 2
2
X401
C425
R420
44.845 MHz
22pF
3.9k
C424
0.01
C426
L404
39pF
470nH
R514
C227
R5V
10
5pF
C515
C518
BUFFER AMP
R512
1000pF
12k
470pF
R510
R511
L505
C516
L506
3.3k
8.2k
27nH
33pF
15nH
C512
L504
R513
C517
Q503
C520
C521
5pF
15nH
560
5pF
2SC3356
13pF
15pF
C513
C514
5pF
2pF
C546
T5V
470pF
C544
L534
R548
5pF
1.8k
22nH
0
C548
3pF
R547
R545
5.6k
Q534
12k
2SC4226
C547
470pF
BUFFER AMP
Q533
2SC4226
C545
R546
470pF
220
Tx Freq
ANTENNA SWITCH
C112
C122
R105
L112
T5V
1000pF
22pF
220
Rx RF
3
L106
D102
470nH
D301
4
C115
2
1
D101
1.5pF
HARMONIC FILTER
Is
C120
3
L107
L108
L110
22pF
R107
82
C113
C114
C116
C118
5pF
8pF
8pF
5pF
C412
T401
R5V
SECOND MIXER/
4.7
DETECTOR
C410
R404
+
C404
R403
82pF
1.5k
10
100k
Squelch Out
11
10
13
IF Out
Quad
N Detect
12
RSSI
C408
U401
0.22
BA4116
R405
3.9k
AF Out 9
Mixer
Filter
Filter
Gnd
Out
IF In
Dec
Out
In
C413
C414
15
3
5
6
7
8
0.022
0.047
C417
R411
0.047
R406
C422
150k
100k
4700pF
C423
C415
4700pF
220pF
SQUELCH
RT401
C416
LEVEL ADJ
R410
10k
220pF
56k
VR401
50k
R412
R409
4.7k
455 kHz CERAMIC FILTERS
22k
R413
R421
C428
R5V
15k
R414
10k
0.01
WIDE BAND
15k
1
2
R422
XLF403
6
10k
D401A
D402A
3, 4
2
NARROW BAND
D401B
D402B
1
2
U402A
1
XLF404
UMH9N
R418
R417
R415
3, 4
22k
15k
22k
R416
15k
3
U402B
UMH9N
H= Wide
C429
L = Narrow
5
0.01
C427
4
0.01
POWER SUPPLIES
Switched Bat In
+
C602
C603
C610
+
C601
C608
0.1
0.01
0.01
4.7
4.7
U601
C5V REGULATOR
C5V
R1120N501
Source
3
In
1
Out
4
CE
Gnd
NC
+
C605
+
C604
C606
C607
2
5
4.7
0.01
0.1
4.7
5V REGULATOR
Tx SWITCH
U602
T5V
Q601
R1120N501
Source
KRA105
3
In
1
Out
4
CE
Gnd
NC
C611
+
C612
2
5
0.01
4.7
U603
C613
Rx SWITCH
UMC5N
R5V
0.01
Source
4
3
+
C614
C615
C616
0.01
0.1
4.7
1
5
2
BATT
Source
Antenna Jack
November 2001
Part No. 001-7240-001
Part of
J101
9
RSSI Out
7
Audio Out
16
Sw Nar/Wide
4
14
NC
5
NC
10
Delayed PTT
19
Battery In
1
Battery In
3
Ground
12
Ground
20
Advertisement
Table of Contents
