Radio

Amateur Radio is probably my most important non sporting hobby. It has shaped my interests, my career, the things I do in the hackerspace and the way I spend almost all of my non-professional time. I currently operate as MM0RFN, ex 2M0HIB & MM3ZRZ.

These are the collected results and thoughts from my years of experimentation and play in this area.

Radio Power in the Field - Follow on

Previously, I wrote about building a battery for my portable radio operations. This project has been a long and agonising one. Batteries are really difficult, and I spent a good chunk of June, July and August thinking about them. The Winning Design As I discussed in that last blog post, the architecture I settled upon was: I’ve learned quite a lot, made a large number of wrong assumptions and joined a lot of dots in my head as this has gone on. …

SOTA Trip Reports: July 12, August 01, 02 2020

Here’re my first sota trip reports. I made some mistakes and have lots to learn still, but they were great days out and I’m dead keen to do more. Most importantly, I’ve got better at radio in general - I’m much more comfortable on a microphone, I understand the flow and format of an HF contact far better. It’s very different from the datamodes I’ve been doing for years! One thing that I’ve noticed, and it probably deserves mentioning, is that the SOTA web infrastructure is some of the best I’ve seen in ham radio. …

Radio Power in the Field

This post is part of [tj]’s blog more in June challenge. You should join us and take part - just make 4 posts in June! I have an amount of portable, HF radio equipment that I don’t use enough. One reason is just how awkward and cumbersome it can be to move everything around. I would like to have a small bag/box I can attach to a backpack or my bike before I go out. …

Radio Day

This has been a few days of mildly successful radio fidgeting. Few issues diagnosed in the setup, few things fixed and a few things done. First up, the 6" cable I use to connect the FT-100 radio to my tuner has broken. This was replaced (thanks to Ed) and things tuned nicely. This must have been borked for some time - I’m now able to tune up my (roughly) 20m dipole on 30m and 40m no bother - both matching with swr of less than 1. …

Radio Node

Soundmodem, ax25d and uronode This is mostly a repost of something that was on my now deceased wiki, spruced up a little for this platform. Start at the top and work down, you should have a basic, working ax25 packet radio system by the end. I shall address netrom at a later date. I’m using soundmodem as it presents me with an sm0 device I can easily configure in the following steps, however I have also tested direwolf for this successfully. …