I¡¯m planning to build a version of the K3NG auto tuner as well. I am looking at using a Sainsmart 16 relay module (Amazon $14.99) for the L&C and a 2 relay version for the hi/lo and antenna switch. N9KR used these modules. (Search YouTube for N9KR). Also going unbalanced. Great info on the SWR detectors. I plan to build in a noise bridge as well for no transmit tuning.?
--
John Faivre?WA9SGD
