tag:blogger.com,1999:blog-9071048343455395511.post4018020448109392636..comments2024-03-24T22:03:31.205+00:00Comments on Roger G3XBM's (Mainly) Amateur Radio Blog: Ultra simple RX for 80m or 40mRoger G3XBMhttp://www.blogger.com/profile/13673890140751539870noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-9071048343455395511.post-58384598053762564252022-05-24T11:51:02.503+01:002022-05-24T11:51:02.503+01:00Hi Roger,
over the last few days I have been build...Hi Roger,<br />over the last few days I have been building the VK3YE phasing SSB transceiver you showed on a previous blog.as I was intrigued by the design. Unfortunately, despite the vfo running, the audio amp has gain, and the inductor resonances were checked using my nanovna, no receive nor transmit was achieved. I even purchased an audio transformer and other bits to get close to the circuit values, something I never do normally as I prefer to build from my extensive junk box collection.<br />I remember many years ago, I gave up building circuits from Practical Wireless that never worked due to printing errors. I later found ‘errata’ columns published months later saying so, but by then I had lost interest. Nowadays, I only build from supplied kit manufactures. This latest was an exception. I think some of these simple circuits are lucky ‘one-offs’ sometimes that often cannot be reproduced by others, due to component tolerances, layout quirks, and some obscure component characteristics.<br /><br />BTW, despite running 1watt wspr on all three of the currently used 40mhz freqs, I have had not a single spot. Yet 28mhz and 50mhz from the same rig (three band fan dipole), I get dx spots. That first day when I worked S59F on FT8;was a rare exception as I have heard no-one since.<br />Enjoy your hols!<br />73 Ken g4apb ken g4apbnoreply@blogger.com