Dec 15, 2019
#repair
#hamradio Just pulled a dead rectifier from Dad’s EP-925 PSU.
It’s basically identical to the PS-30M I have which I repaired last year when a pass transistor shorted. Chunky and hard to get inside but generally fairly simple.
Fingers crossed this is the only problem with it. 🤞
#hamradio #repair
→ View toot on
mastodon.radio Dec 13, 2019
#sdr Forgot to mention I found the AirSpy HF repo on github: https://github.com/airspy/airspyhf
These tools work with the Airspy HF+ Discovery on the Pi and Mac, (although I did still need a windows box to update the firmware). They’re also not yet packaged on Debian, or in the official homebrew project.
I’ve not had much time to play, but I think airspyhf_rx should work a lot like the RTL tools.
Also, this blog has a lot of cool content, even though I can’t read it: spinorlab.matrix.jp/ja/page/3/
#sdr
→ View toot on
mastodon.radio Dec 12, 2019
#amateurradio
#hamradio Put a fixed pulley on the top of my antenna pole last night, and added a section of conduit to keep the cord close to the pole.
Hopefully that’ll stop it jangling in the wind.
#hamradio #amateurradio
→ View toot on
mastodon.radio Dec 9, 2019Just got to work and took off my jumper…
I then touched my keyboard and got a massive static shock…
Which killed the USB port on my dock!
I wonder if the same thing would have happened to the computer if i was attached directly.
→ View toot on
mastodon.radio Dec 8, 2019
#sdr
#hamradio Playing with the Airspy HF+ Discovery (or trying to). It works fine with GQRX but the airspy utils, like airspy_rx don’t work on my Pi or my Mac.
I think I need to update its firmware, but to do that I need to use Windows, so I’ll have to do it at work.
Also, since I can’t use the airspy tools I can’t even work out what firmware release it currently has! Frustrating!
#hamradio #sdr
→ View toot on
mastodon.radio Dec 7, 2019I just had a cheap AliExpress PL-259 patch cable fall apart in my hands. I guess you get what you pay for!

It was so badly crimped I was able to reuse the plugs and sleeves to make a new cable, with a slightly nicer bit of coax.
→ View toot on
mastodon.radio Nov 30, 2019
#tnc
#aprs
#amateurradio
#hamradio Ordered various DIN connectors to try to hook the TNC-Pi to either my 706 or ft818.
I have a lot of random connectors but nothing that fits. I might also try using my data mode cables if I can work out what sort of adapters to make.
#hamradio #amateurradio #aprs #tnc-pi
→ View toot on
mastodon.radio