Skip to main content

Posts

Showing posts from December, 2025

Free to download radio magazines

We all enjoy some radio related reading, especially around the Christmas holidays.  We've found four great magazines which are completely free to download. If you know of any that we have missed please do leave a comment. Merry Christmas from Crawley Amateur Radio Club SWR: https://fliphtml5.com/site/85123127/index.html The Logger's Bark: https://w7dk.org/newsletter Ham Radio Ireland: https://www.docdroid.com/KBZHEAV/hrivol31225-pdf The Communicator: https://www.calameo.com/accounts/7665474

FreeDV Digital Audio Transceiver Build

Members of the Crawley Amateur Radio Club have been busy with their soldering irons building a Digital Voice HF transceiver that was featured in the December issue of Practical Wireless magazine. Members supported each other with the builds, and had a hands on construction session at the shack. By the end of the session we all had working transceivers, and had successful QSOs with each other.  We  are planning a Digital Voice net over the Christmas break so everyone can test their builds. The kit was the work of  Eric Edwards GW8LJJ, and works on the 60m band. It's designed to work with FreeDV which uses Radio Autoencoder (RADE) technology to send speech over HF radio. It combines Machine Learning (ML) with classical DSP to send high quality speech over HF radio at SNRs as low as -2dB.  Find out more details here - https://freedv.org/  The club would like to thank Eric for his support during this project.