Hi All - wondering if any of you KX2 (or even KX3) owners have built and are using the W9RAN "Versatile T/R Switch for SDRs and Vintage Radios” featured on page 30 of the December 2018 issue of QST?
I enjoy the P3 that I use with my K3 and sure miss “seeing” the band when I use the little QRP rig here in the shack. I have an RSPplay RSPpro2 SDR connected to a Mac Mini and a 32” monitor and would like to share my antenna system between the SDR and the KX2. This would allow me to “look" at a particular band with the SDR and then tune the KX2 to a desired spot I found on the SDR.
I got the T/R Switch kit from W9RAN on Saturday and have not yet started building it. Based on the schematic in QST, it appears that as built, one cannot listen to the KX2 receiver; the antenna is connected to the SDR until the transmitter is keyed. I thought maybe I could jumper pins 14 and 11 at the T/R relay on the board, or use a coax Tee so that the KX2 would always be connected to the antenna.
Thoughts…?
Jim / W6JHB
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