Topband: RX loop antenna RX protector

[Joe Subich, W4TV]

The MFJ-1708 can be used in that manner.  Connect the loop to the
"ANT" port and the SDR to the SDR port and configure the CTRL input
for PTT.

73,

    ... Joe, W4TV


On 2021-06-06 9:49 AM, N4ZR wrote:
> I recently saw, in an e-mail from someone, a reference to a commercial 
> device designed to protect a receiver on a magnetic loop antenna.  IIRC, 
> the device uses PTT from a transceiver to disconnect and/or short the 
> input of an SDR.  I think it was made by a company whose main product is 
> magnetic loops.
> 
> I can't find it now - can anyone help?
>