Motorola APX 2000 Detailed Service Manual

Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF1 (84012313002 / PC000353A01) 8-121
Figure 8-54. Receiver VCO Circuit
1
IF3101
1
IF3102
1
IF3100
DC_SUPER_FILTER_5V
GPO1
GPO2
IF
IF
IF
IN
IN
IN
C3105
C3120
R3127
L3126
C3116
C3115
82
100PF
100PF
820NH
6.8PF
6.8PF
V1
V2
V3
RFC
NC
RF1
RF2
RF3
CGND
NC
C3161
7
6
3
1
8
5
4
2
G1
U3001
SKY13251
100PF
NC
C3102
C3104
L3100
R3105
R3106
R3103
C3159
13
2
Q3123
300
10PF
100PF
NE856
300
18
27NH
2.2PF
C3158
R3159
L3125
C3122
R3118
100PF
68
0.1UF
18K
390NH
C3109
C3111
R3114
L3119
27K
100PF
820NH
0.1UF
C3101
C3113
C3107
7.5PF
5.6PF
6.8PF
L3106
L3112
C3110
C3108
15NH
DNP
3.9PF
5.4NH
2.7PF
2
1
D3105
21
D3103
21
D3104
2
1
D3102
L3101
C3100
1SV279
1SV279
1SV279
100PF
390NH
1SV279
1
IF3103
IF
VCTRL
IN
GPO1
DC_SUPER_FILTER_5V
4.7K
47K
47K
10K
3
1
4
5
2
Q3128
UMC5NT2
VCO_TX
GPO1
GPO2
1
IF3104
VCO_OUT
IF
OUT

Motorola APX 2000 Specifications

General

IP Rating	IP67
Operating Temperature	-30°C to +60°C
GPS	Optional
Bluetooth	No
Frequency Range	700/800 MHz
Power Output	1-5 W (VHF), 1-3 W (700/800 MHz)
Channels	Up to 1, 000
Battery Life	Up to 10 hours (digital)
Digital Protocol	APCO P25
Frequency	VHF: 136-174 MHz, UHF: 380-470 MHz, 700/800 MHz: 764-870 MHz
Power	1-3W (700/800 MHz), 1-5W (VHF)