globalc
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globalc.bsky.social
globalc
@globalc.bsky.social
11 followers 12 following 10 posts
Linux / Japan / Tinkering with technology

Real world/Fediverse: https://chaos.social/@globalc

#Japanese ( language | culture )
#SelfHost as much as possible
#Retro hardware and gaming
#HAMradio: JL1AYH
#RSS fan
#Cycling
#Fedora
Posts Replies Media Videos
globalc.bsky.social
Are you looking for an introduction into "Software Defined Radio", especially together with Linux?
I'm introducing the basic concepts, and software gprx and OpenWebRX+.

Might contain segways into #HAMradio . 😃

Slides: fluxcoil.net/files/presen...
January 26, 2026 at 12:09 PM
globalc.bsky.social
At #39c3 , HAMs presented about their radio contact with Fram2, a spaceX mission.
We will discuss this on Friday, January the 16th, in #Tokyo ( 7pm, room #202 at Jiyugaoka Juku Center ) at the local club - come over if you are in the area!

Recording in German: media.ccc.de/v/39c3-amate...
Amateurfunk im All – Kontakt mit Fram2
Wir geben Einblicke in zwei intensive Wochen Planung, Koordination und Aufbau, den Betrieb einer (improvisierten) Bodenstation, sprechen ...
media.ccc.de
January 15, 2026 at 9:56 AM
globalc.bsky.social
My steps to emulate the #Amiga 1000 keyboard with the Raspberry Pi:
blog.fluxcoil.net/posts/2025/1...
Emulating the Amiga 1000 Keyboard
TL’DNR: My steps towards emulating an Amiga 1000 keyboard, using the GPIO (input/output) pins of a Raspberry Pi, and implementing parts of the keyboard protocol in Python.\nBackground Around 1997 I go...
blog.fluxcoil.net
December 28, 2025 at 7:18 PM
globalc.bsky.social
I finally found the time to connect my Morse key to the computer, worked out as simple as I hoped - the Morse key is simply shortening a circuit, which is the same as mouse button switches are doing.

So now I can also practise to give CW.

Details: blog.fluxcoil.net/post/2025/12...

#HAMradio
Connecting a Morse Key to the computer
Since spring of this year I’m learning to pick up morse code, so to hear sequences of dits and dahs/long and short sounds, and interpret the characters they represent.\nThat’s progressing.. but it’s j...
blog.fluxcoil.net
December 25, 2025 at 9:41 AM
globalc.bsky.social
Tokyo at night, near the emperors palace
Tokyo at night, near the emperors palace. In the far, high buildings with light shining out of their windows. At the bottom, the street and walkway, in warm and brown light.
November 15, 2025 at 11:26 PM
globalc.bsky.social
We do an evening around #LoRa devices and #Meshtastic on Friday.

- What are Lora, how does Lora relate to WiFi
- What's Meshtastic, will bring in some devices
- I'll explain this BBS use case idea, how it works

Location: Nov 21st, 7pm, Meeting room 202 at Jiyugaoka juku Center, Tokyo
November 15, 2025 at 1:32 AM
Reposted by globalc
jimt.onjapan.net
It is November, and that means "Butt Sumo" (尻つみ祭り) time again at the local shrine here in Ito, #Japan. Contestants stand back-to-back on a raised dais and, at the signal, attempt to bump their opponent off. The winners are sometimes surprising.
Two contestants back-to-back on a small circular platform. At the signal, they use their bottoms in an attempt to knock their opponent off the dias.
November 10, 2025 at 1:48 PM
Reposted by globalc
tlug.jp
Drop by the Tokyo Linux User’s Group booth at OSPN OSC and convert your PC to Linux today!
October 25, 2025 at 3:35 AM
globalc.bsky.social
Tried to replicate an old style BBS connection over #meshtastic devices, like we had over phone lines in the past. Not just simple message push/pull, all the blinkenlights!

Details: blog.fluxcoil.net/posts/2025/1...
#lora #meshtastic #ham
Lora Meshtastic BBS Testing
Terms Details on some terms I will use:\nLoRa (“Long Range”) is a technology for transmitting data via radio signals. It’s designed for much longer distances than Wifi: the record for LoRa is around 3...
blog.fluxcoil.net
October 17, 2025 at 11:43 PM