151
BARRETT 4050 HF SDR TRANSCEIVER - OPERATING AND INSTALLATION MANUAL
ATU Connector
Signal
Level
A
B
C
D
E
F
G
A. GND and shield
B. RS-232 RX / GPS Data
C. 1PPS
D. Scan
E. Tuned
F. ATU
V+
G. RS-232
TX
Ground and cable shield
Receive data line of RS-232
1 Pulse per second
ATU Scan line
ATU Tuned signal
ATU Voltage 13V8
Transmit data line of RS-232
Microphone Connector
Located on the Front Panel.
Signal
Level
10
1
2
3
4
5
8
6
9
7
1. MicH
2. MicL
3. GND
4. PTT
5. CH
UP
6. CH
DN
7. Reserved
8. Reserved
9. SPKR+
10. SPKR-
Microphone audio high
Microphone audio low
Ground
Low going PTT
Channel up
Channel down
Reserved
Reserved
Speaker microphone positive
Speaker microphone negative
Содержание 4050 HF SDR
Страница 218: ......