Motorola HT Series User Manual

9-122 UHF Band 1 Circuit Board/Schematic Diagrams and Parts List (PCB 8415234H01, 8415234H02, 8415234H05, 8415234H08)
TX_SWITCH
VCC_BUFFERS
VCC_LOGIC
RX_OUT
RX_SWITCH
SUPER_FLTR
TRB_IN
TX_BASE
TX_EMITTER
TX_IADJTX_OUT
FLIP_IN
GND_BUFFERS GND_FLAG GND_LOGIC
PRESC_OUT
RX_BASE
RX_EMITTER
RX_IADJ
COLL_RFIN
U241
50U54
3
19
16
15
1
20
5
6
2
4
1418
13
8
7
10
12
11 917
Rx_sw
PRESC
Tx_sw
C271
NU
SHIELD
SH241
1
SHIELD
SH242
1
VCO TOP SHIELD VCO BOTTOM SHIELD
AUX3
5V
Q260
2
4
1
3
C297
.01uF
10K
47K
47K
4.7K
DD
2
4
1
3
Q261
R260
1K
10K
47K
47K
4.7K
100pF
C289
AUX4
3.6pF
C254
P3 3
R251
18
L253
RESONATOR
1P1
P2
2
C255
100pF
7.5K
R254
330
R252
Tx_sw
30
R248
BFQ67W
1
3
2 Q241
7.5K
R253
R243
10K
L282
390nH
VSF
Rx_sw
2.4pF
C245
C243
7.5pF
0.1uF
C248
C244
2pF
100pF
C247
100pF
C246
18
R241
12K
R244
R242
200
1
2
3
L243
RESONATOR
TX_INJ
RX_INJ
240
R245
33nH
L273
2.2uF
C276
C281
100pF
L271
68nH
C272
L281
390nH
NU
C273
0.1uF
C286
0.1uF
VSF
100pF
C285
100pF
C251
10pF
C252
CR251
33nH
L251
C253
1.8pF
CR242CR243
L241
390nH
100pF
C241
1A1 A22
CR241
220nH
L242
C250
7.5pF
7.5pF
C242
VCTRL
4.567V (Rx)
4.613V (Tx)
9.59mV (Rx)
4.998V (Tx)
9.55mV (Rx)
5.058V (Tx)
5V (Rx)
5.05V (Tx)
5.043V (Rx)
3.218V (Tx)
4.639V (Rx)
1.978V (Rx)
3.499V (Rx),4.125V (Tx)@403.355MH
z
8.798V (Rx),9.216V (Tx)@469.985MH
z
Figure 9-96. UHF Voltage Controlled Oscillator Schematic Diagram

Motorola HT Series Specifications

General

Battery Type	Li-Ion
Waterproof	IP54
Operating Temperature	-30°C to +60°C
Frequency Range	VHF: 136-174 MHz
Number of Channels	16