Acom AOM 04AT User Manual page 40

Before connecting the coaxial cable from the tuner to the amplifier output, make sure
that the cable and amplifier are securely grounded to the grounding system of the radio
station. Using a voltmeter, check the cable coming from the tuner to verify there is no AC
or DC voltage above 12 V from the pin and the ring of the cable connector to the grounding
terminal of the amplifier and between the connector pin and ring!
Without powering up the amplifier, use a coaxial cable to connect the tuner input (Pos. 3) labeled 50Ω RF
+26 VDC POWER & CONTROL to the ACOM transistor amplifiers output labeled RF OUTPUT.
Besides RF power, the tuner will be supplied with DC power from the amplifier (+26 VDC with consumption
up to 25 W), and bidirectional control data (60 kHz FSK), all combined on the same cable.
Page 40 of 88 | S e c t i o n INSTALLATION
User's Manual | ACOM 04AT | Remote Automatic Antenna Tuner and Switch
DANGER
October 2023