https://stream.echo6.co/videos/watch/59837e49-bbc5-4b47-bb57-ca23c28372b5 Describing and testing a BITX40 7 MHz SSB transceiver that largely copies the famous design by Ashhar Farhan VU2ESE. I'm out portable on a hot afternoon, make several contacts and answering questions from visitors. A highlight was that at one point there were four stations with homebrew transceivers on the air at once (VK2ABN, VK2ABT, VK3ZZ & VK3YE). The circuitry of my rig is mostly identical to the original at http://www.phonestack.com/farhan/ However I used 9.045 MHz crystals for the IF and a VFO around 2 MHz to cover the 40 metre band. The microphone amplifier, driver and PA are also slightly different. Thousands of BITX transceivers on various bands are on air around the world. There are numerous BITX videos, websites and a specialist yahoo group. Mine was built from scratch, but kits and circuit boards are also available - just google 'Bitx transceiver' will bring up all the major links. PS: If you liked this video please consider supporting Amateur Radio VK3YE by: Subscribing on YouTube, Checking my books page at https://books.vk3ye.com, Shopping on Amazon via: https://amzn.to/3iiDQXv, or, Shopping on eBay via: https://ebay.us/i9DuWP (then if you buy something I'll get a small commission at no cost to you) Sat, 09 May 2026 05:03:25 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/59837e49-bbc5-4b47-bb57-ca23c28372b5 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.