15-01-2018, 09:20 AM
Hi All, Happy New Year! We are all older and therefore should be bolder 
Is anybody using a IC-290A as a transverter IF? If so, how are you doing the PTT switching? My DEM 23CM transverter requires the grounding of a relay to switch to transmit and there is no convenient way of doing that from the accessory socket on the IC-290A (that I can figure out anyway).
I have thought of using a RF-sensing relay but cannot find a suitable circuit. Anyone got one?
73
Wayne VK4WDM
Is anybody using a IC-290A as a transverter IF? If so, how are you doing the PTT switching? My DEM 23CM transverter requires the grounding of a relay to switch to transmit and there is no convenient way of doing that from the accessory socket on the IC-290A (that I can figure out anyway).
I have thought of using a RF-sensing relay but cannot find a suitable circuit. Anyone got one?
73
Wayne VK4WDM