https://stream.echo6.co/videos/watch/40013dd4-e356-42e6-ad78-3f1a261e1bef Extending an AM broadcast receiver to tune 1.8 MHz. The process has two main steps: Tweak the local oscillator in the receiver so it tunes up to about 2300 kHz. This can be done by adjusting one of the trimmers on the back of the tuning capacitor, or failing that the local oscillator coil. Like an IF transformer this is usually in a square metal can with a screw in the top. In most cases there is enough range - but sometimes you'll get a receiver that can't easily be extended., Peak the front end. This involves adjusting another trimmer on the rear of the tuning capacitor., You will need a 1.8 MHz signal source to do the conversion. This can either be a second AM receiver (tuned to about 1400 kHz), an RF signal generator or an amateur HF transceiver connected to a dummy load. The converted receiver will receive AM transmissions. Add a BFO for SSB and CW reception. A tuned loop antenna will dramatically improve sensitivity. 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 05:56:53 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/40013dd4-e356-42e6-ad78-3f1a261e1bef 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.