Jay, I use the RTR-2 from DX Engineering in the exact setup you describe: https://www.dxengineering.com/parts/dxe-rtr-2
LoG in the front yard for receive, and OCFD strung across the house for transmit. Used it with my 7300 before I bumped up to the 7760. I still use it with the 7760 as I prefer the quick toggle between antennas to compare, and the optional preamp module seems to perform better than the Icom unit built into the radio. I got the preamp module and the receive interrupter module to go with it. It all gets triggered with a SEND line signal like an external amp would. Kind regards, Jim W2PAP Get Outlook for iOS<https://aka.ms/o0ukef> ________________________________ From: BVARC <[email protected]> on behalf of Jay Davidson via BVARC <[email protected]> Sent: Tuesday, July 1, 2025 11:14:05 AM To: BVARC <[email protected]> Cc: Jay Davidson <[email protected]> Subject: [BVARC] Automatic Antenna Switcher Hello, I’m interested in installing a receive only ground loop at my QTH and have the conundrum of antenna switching. I’m transmitting through a butternut vertical but it’s rather noisy in my area. I know MFJ-1707B used to exist however as I’m sure you’re aware they’re out of business. Is there any alternate manufacturers out there that filled that gap? Any suggestions to make this work without frying my radio? I have a 7300 with only one SO-239 port. One day I’ll get something flashy (7610/7760) that can dual monitor etc but currently I’m rocking my 7300. Thanks all and 73, Jay KJ5HMX
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