I think it looks like an MAR/RDR setup - any other opinions? https://www.navy-radio.com/xmtrs/mar.htm Cheers, Nick England K4NYW www.navy-radio.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.qth.net/pipermail/mrca/attachments/20211119/9e46d679/attachment.html>