Amazon.com: 500m-1000M DC12V 24V 36V 48V 40A RF Wireless Remote Control Power Switch Radio Controller Transmitter Receiver with Antenna Radio Remote Control Industrial Remote Control Switch Long Distance Range : Electronics
MS-S5A WEB controlled REMOTE ANTENNA SWITCH 5 POSITIONS 2 KW PEP Ready for use | eBay
MFJ 4712 | Remote two-position antenna switch
DX Engineering DXE-RR8B-SD-P1 DX Engineering RR8B Remote Antenna Switch and Control Console Packages | DX Engineering
How to build an automatic remote antenna switch | The SWLing Post
Remote Antenna Switch Kits – Information page for my remote antenna switch kits