This is a guest post by Kanda-san, JH0PCF. He and Matsui-san JH0VEQ attended the Ham Fair and discussed FreeDV and RADE. Here is a summary of their fine work at the Ham Fair. Thank you Kanda and Matsui for helping us promote FreeDV – we have noticed that RADE is very popular in Japan so you are doing a great job!

Kanda writes:

On August 23rd and 24th, the Japan Amateur Radio League (JARL) hosted Ham Fair 2025 at Ariake GYM-EX, a facility built for the 2020 Tokyo Olympics. We were able to borrow a portion of the JARL Tokyo branch’s exhibition space to hold a FreeDV demonstration and give a 50-minute lecture on the main stage on the appeal and practical application of FreeDV, a digital voice communication system that can be used over HF.

During the lecture, I, JH0PCF Kanda, explained operation and configuration, introducing the people involved in development, and JH0VEQ Matsui provided a detailed explanation of the RADE V1 specifications.

Many attendees were interested in trying FreeDV for the first time, and they were enthusiastic about the setup process and were amazed by the excellent sound quality in RADE mode.

FreeDV Demo