{hacking,music,electronics,radio}

Here are the toots from my Mastodon account. If you’re into ham radio and technology this is a great inclusive server with an awesome mascot called Alex.

It's Alex! A soft brown mastodon holding a handheld radio in their right hand and carrying a blue bag over their shoulder

Alex, the mastodon.radio mascot

Posted status:

Today I spent a while fighting with a “black pill” STM32 board, which must be a clone. I can’t get the thing in DFU mode and it has a weird HID bootloader and USB IDs: 0483:572A [WeAct Studio WeAct Studio HID Bootloader], but everything expects 1209:BEBA. 😕

I have now given up and ordered an ST-LINK programmer (very cheap, so also a clone :alex_grin:) so hopefully I’ll have more luck with that!

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Posted status:

WSJT-X 2.5.2 was released yesterday with bug fixes for JT65 or Q65 with non-standard call signs: https://sourceforge.net/p/wsjt/mailman/message/37379416/

URLs are the same as always :alex_grin:

🗒️ https://physics.princeton.edu/pulsar/k1jt/Release_Notes.txt

📁 https://physics.princeton.edu/pulsar/k1jt/wsjtx.html

#hamradio #wsjtx (just noticed - breaks tags).

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Posted status:

I also didn’t know what which isn’t POSIX. Interesting article from LWN: https://lobste.rs/s/vbrl9x/debian_s_which_hunt

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Posted status:

My friend and colleague Paul was on the FLOSS podcast: https://twit.tv/shows/floss-weekly/episodes/653?autostart=false I’ve not watched yet due to lots of power cuts and being busy but it’s probably interesting :alex_laugh:

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Posted status:

📢 WSJT-X 2.5.1 was just announced here: https://sourceforge.net/p/wsjt/mailman/message/37371039/

🗒️ Release notes are here: https://physics.princeton.edu/pulsar/k1jt/Release_Notes.txt

📁 And downloads are in the usual place: https://physics.princeton.edu/pulsar/k1jt/wsjtx.html

The release notes say:

This release mainly contains improvements and defect repairs related to Q65 and JT65 modes when used with non-standard and compound calls. Also included is a new feature for microwave aircraft scatter and repairs for defects detected since the 2.5.0 GA release.

#hamradio #wsjt-x

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Posted status:

Feel pretty pleased with myself, I just built my first home-designed PCB and it worked :alex_grin:

It’s the small bidirectional amplifier described here: http://w7zoi.net/bidirectional_matched_amplifier.pdf and built by w2aew here https://www.youtube.com/watch?v=7TtKE39TWpI

I made a couple of footprint mistakes but didn’t need any bodge wires! I spent ages messing with KiCad but learned a lot, and have a few ideas for changes. I don’t really have a project in mind, but wanted to build something simple I could use to learn.

A small dark blue printed circuit board resting on an LCD display. The board has SMA connectors on the top left and right and three wires on the left. On the board are two almost identical circuits made of 0603 surface mount components and SOT 23 transistors.

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Posted status:

This looks fun: QDX 4-band 5W Digi transceiver http://qrp-labs.com/qdx

On sale from tonight at http://shop.qrp-labs.com/qdx

#hamradio #qrp #ft8

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Posted status:

📢 WSJT-X 2.5.0 was announced here: https://sourceforge.net/p/wsjt/mailman/message/37357178/

🗒️ Release notes are here: https://physics.princeton.edu//pulsar/k1jt/Release_Notes.txt

📁 And downloads are via: https://physics.princeton.edu//pulsar/k1jt/wsjtx.html

The release notes say:

“WSJT-X in this release is nearly identical to that in WSJT-X 2.4.0.

The Q65 decoder has been enhanced to measure and compensate for linear

frequency drift in Q65 signals.”

So not hugely exciting 🤷, but I expect hamlib has also been updated.

#hamradio #wsjt-x

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Posted status:

“Available from a well known internet site”. “Get this from a popular Chinese website”. “Available from an online auction site”. 😃

I always laugh when I see this sort of thing in magazines. I’m pretty sure there’s nothing wrong with naming companies and providing URLs.

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Posted status:

It’s time for a new WSJT-X release candidate.

📢 WSJT-X 2.5.0-rc6 was announced here: https://sourceforge.net/p/wsjt/mailman/message/37346748/

🗒️ Release notes are here: https://physics.princeton.edu//pulsar/k1jt/Release_Notes.txt

📁 And downloads are via: https://physics.princeton.edu//pulsar/k1jt/wsjtx.html

The release notes seem to mainly cover bug fixes, so maybe there will be a GA release soon.

#hamradio #wsjt-x

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