https://stream.echo6.co/videos/watch/79014fec-08d1-4e13-a6ab-8b99ca2c8cd0 Testing a 1 milliwatt beacon transmitter on 7160kHz. This is a 2-transistor transmitter, comprising a 2N2222 crystal oscillator, a 2x1N4148 diode balanced modulator and a 2N2222 RF power amplifier. The tests in this video were done before the RF power amplifier were added, so are the results of a 1 transistor double sideband transmitter. 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 09:23:45 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/79014fec-08d1-4e13-a6ab-8b99ca2c8cd0 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.