https://stream.echo6.co/videos/watch/ff735cf0-6eec-4a21-acd4-e6011c2c001e A hands-on look at a simple 144 MHz direct conversion receiver and problems encountered in its construction. Video recommended for those learning about the 'black art' of RF circuit layout. The eagle-eyed will notice a difference in the point where the external 24 MHz DDS output is connected. Initially I had it going to the 72 to 144 MHz frequency doubler. Later on I changed it to go through the crystal oscillator with the crystal removed (to act like a x3 buffer). 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) Wed, 06 May 2026 02:13:12 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/ff735cf0-6eec-4a21-acd4-e6011c2c001e 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.