Thanks very much for all the feedback I've received, both on and off the list. Jim seems to pretty much cover all my points, thanks. The only minor followup question I have, that might be of general
Dear Alan, LF group. As far as antennas for LF/MF are concerned, the "lots of wire as high as possible" principle applies, with height being the factor that has by far the biggest effect on efficienc
Hi Alan, there is not a lot of "accumulated wisdom" on 500kHz yet but most of the 136khz experience seems to work. The best tutorial for aerials at LF is the pages by Rik Srobbe ON7YD. You will find
Hello everyone, Alan G3XAQ here. I just joined this mailing list. I'm preparing my application for a 501KHz NoV, so Mal's note on an easy start is very timely. For me, there is an even easier route t
Hi All An Easy Start solution for 500 is to use an existing HF rig modified for 5 mhz tx at low power, then shape the sine wave to sq wave with a single chip and divide by 10 with another chip then a