The MFJ-4716 6-position Desk Antenna Switch 1.8-150MHz, Use this MFJ-4716 Six-position Antenna Switch on your desk or place it out-of-way under your desk or in another room and use a remote control. A simple rotary switch lets you select 1 of 6 antennas. All unused inputs are grounded. You can connect a sense line to your transceiver so that when it’s off, all inputs are automatically grounded. In the OFF position, all inputs are grounded or control is transferred to the MFJ-4716RC, £39.95, Remote Control. Ultra-fast gas discharge tube lightning surge protector protects the transceiver and safely shunts static electricity and lightning-induced surges to the ground. Does not protect against a direct lightning hit. Super easy-to-use -- just one simple rotary switch. There are no complicated computer buttons to learn or microprocessors to fail or generate RFI that could mask rare DX. SO-239 connectors. 1500 Watts/50-75 Ohm load, 1-60 MHz. Useable to 150 MHz. Connects to MFJ-4716RC remote control with common CAT 5 cable, not included. Use 12 VDC or 110 VDC with MFJ-1312D, £14.95. 8Wx23/4Hx41/4D inches. For indoor use, not weather protected.