MFJ MFJ-4724RC User Manual

MFJ-4724RC 4–Position Antenna/Transceiver Switch Remote Control
INTRODUCTION
Thank you for purchasing the MFJ-4724RC 4-Position Antenna/Transceiver Switch Remote Control. This
Remote Control allows the user to remotely operate the MFJ-4724 Desktop/Remote Antenna/Transceiver Switch, which is a versatile multiple Antenna/Transceiver Switch designed to switch up to four 50-ohm antenna systems or four transceivers in any combination. It handles high power, up to 1500 Watts and sealed relays offer excellent life and connection reliability. The unit is operational from 1-60 MHz and useable to 150 MHz.
The MFJ-4724RC 4-Position Antenna/Transceiver Switch Remote Control uses two simple rotary switches to select one-of-four antennas or four transceivers in any combination. Place the MFJ-4724 Desktop/Remote Antenna/Transceiver Switch out-of-way under your desk or in another room and use a remote control. In the OFF/Remote position, all inputs are grounded or control is transferred to the MFJ-4724RC Remote Control. All unused inputs are grounded. You can connect a sense line to your transceiver so when it’s off all inputs are automatically grounded.
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MFJ-4724RC 4–Position Antenna/Transceiver Switch Remote Control
INSTALLATION
1. See the MFJ-4724 Instruction manual for complete instructions.
2. The unit can be located at any convenient location, as long as it is not exposed to moisture. It should be grounded to the station ground, and preferably powered from a separate wall adaptor.
3. Connect your antennas to the SO-239 coax connectors numbered 1-4. Note which antenna is connected to each connector.
4. Connect your transceivers to the SO-239 coax connectors labeled A-D. Note which transceiver is connected to each connector.
5. Connect a feedline from the TRANSMITTER COMMON connector to the ANTENNA COMMON connector.
6. Connect the station ground to the GROUND connector.
7. When using the MFJ-4724RC Remote Control, connect a RJ-45 modular jack from the remote control to the ANTENNA REMOTE jack on the back of the unit and connect a RJ-45 modular jack from the remote control to the TRANSMITTER REMOTE jack on the back of the unit using a CAT-5 cable.
6. If your Transceiver is equipped with a Radio Sense jack, you may connect it to the Remote Control using a RCA plug so when your Transceiver is off, all inputs are automatically grounded.
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