The K3 is a great radio, we all agree, and it is finding lots of enthusiasts for use on VHF/UHF. But for one very popular use, it is not able to fulfill is as a satellite radio. For successful use on the ham sats one needs to have full duplex operation. This usually is in the form of cross-band duplex (e.g. transmit on 2m and receive on 70cm).
One can set up a dual-receiver K3 to be connected to a 2m transverter for transmitting and a 70cm converter or transverter for receiving using the aux antenna and sub-Rx, but the K3 cannot support duplex at the SDR level of the radio, as I understand it. Well, I have an idea that might work if one can keep the sub-Rx 1st IF operational during transmit mode. If one took the first IF of the sub-Rx to an external SDR for demod it seems duplex operation could be done. The VFO's would be run un-linked. This question/suggestion is submitted to Wayne and crew for comment. 73, Ed - KL7UW, WD2XSH/45 ====================================== BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kW?, 144-1.4kw, 432-100w, 1296-testing*, 3400-? DUBUS Magazine USA Rep dubus...@hotmail.com ====================================== ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
