STAN/F1SLS

@f1sls@mastodon.radio
443 Followers
715 Following
157 Posts

HamRadio op. since 1991. Dad of two teens. Half a century old.

Keywords: radio, HamSpirit, mutualAid, climate, energy, CO2, collapsology, sharing, solidarity, resilience, EMCOM, Linux, Debian, Ubuntu, RaspiOS, FLOSS, Logiciels Libres, diy, creative processes, cooking, baking, food.

No politics here, unless it directly concerns radio.

Toots are in 🇫🇷 and 🇬🇧/🇺🇸.

Diagnosed Highly Sensitive Person + Long Term Illness (Ankylosing Spondylitis) ♿ Still on his feet for the time being…

he/him

callsignF1SLS
locatorJN38
languagesFR 🇫🇷, EN 🇬🇧/🇺🇸
"web notepad"https://f1sls.extramuros.com/
STAN/F1SLSMay 4

Has #Wimo (or #Yaesu) gone crazy???

#hamradio #radioamateur #ftx1f #price

STAN/F1SLSApr 24

I ordered a bundle of ten 4.433619MHz xtals (for 1.2€).

Can you guess what they will be used for? 😉

Tip 1: it is related to #amateurRadio

Tip 2: it is related to an old very popular "thing" a lot of #ham (at least in Europe) owned in the 90's

#radio #hamradio #electronics

STAN/F1SLSMar 25

In 2021, the german #DARC received 179,690€ from the #ARDC to correct and update the #Linux #AX25 #packetradio #kernel stack.

https://www.ardc.net/apply/grants/2021-grants/grant-fixing-the-linux-kernel-ax-25/

Since that day, NOTHING is available anywhere. The dedicated web site (linux-ax25.org) is non-existant and all about this project (and the money) vanished.

https://mailman.ardc.net/mailman3/hyperkitty/list/44net@mailman.ampr.org/message/GV2LZSBRMRSFZ2DEQQYIHYIUQ4BMQZWO/

Has anyone any information about the status of this project? Where is the code? Where the money went?

#amateurradio #hamradio

Grant: Fixing the Linux kernel AX.25 | ARDC

STAN/F1SLSMar 23

Small tip if you intend to put "isolated" (far from a PCB) LEDs on the front plate of an #electronic #project enclosure: plugging them into a #dupont female connector. The contact is excellent, it is removable, and much cleaner (imho) than soldering wires directly to the leads.

#hamradio #amateurradio #electronics

STAN/F1SLSMar 15

Just casually playing with old #ham #msdos #packetradio software #GraphicPacket, my favorite in the 90's, in a #DosBoxX window.

I'm thrown 30 years back and thrilled to have managed to make it work with a #KISS modem and #TFKISS resident driver (a NordLink TNC2 "TheFirmware" emulator for MSDOS).

Btw, I am preaparing some real hardware (Pentium 233) to make that work on, with a legendary 1200 bauds packet-radio #BayCom modem...

#amateurradio #hamradio #radioamateur

STAN/F1SLSMar 4
HamConBE conferenceMar 4

#hamconBE 26 April 2025, Leuven Belgium.

three talks on #amateurradio (non-technical)
four talks on #radio technology (technical)
three talks on #science and #space

Stay tuned for details! 🥳

#hamradio #conference

STAN/F1SLSFeb 20
DietmarFeb 20

Cybertruck erreicht höchste Sicherheitsbewertung - in den USA. In Europa würde er wegen fehlendem Fußgängerschutz wahrscheinlich durchfallen ...

https://www.golem.de/news/nhtsa-tesla-cybertruck-erreicht-hoechste-sicherheitsbewertung-2502-193522.html

NHTSA: Tesla Cybertruck erreicht höchste Sicherheitsbewertung - Golem.de

Der Tesla Cybertruck hat die höchste Sicherheitsbewertung der National Highway Traffic Safety Administration (NHTSA) erhalten – fünf von fünf Sternen.

Golem.de
STAN/F1SLSFeb 19
BrianFeb 15
🐧
#justforlaughs #funny #meme #linux
STAN/F1SLSFeb 19
YogthosFeb 18
STAN/F1SLSFeb 14
Show threadGoodNewsGreyShoes🔞Feb 13
@aparrish Every single time I hear the sentiment "like it or not, ______ is here to stay", I like to take a moment to reflect on the overwhelming majority of "things we were told would be permanent" that now, *shockingly*, no longer exist.😮🫢🤗🙄
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STAN/F1SLSApr 24

I ordered a bundle of ten 4.433619MHz xtals (for 1.2€).

Can you guess what they will be used for? 😉

Tip 1: it is related to #amateurRadio

Tip 2: it is related to an old very popular "thing" a lot of #ham (at least in Europe) owned in the 90's

#radio #hamradio #electronics

Show threadRixardApr 24
@f1sls
🤔 APRS enabled Tamagotchi?
Show threadSTAN/F1SLSApr 24

@wretchedfox

You are not that far, actually... 😉

Show threadSebastian DO2SGFApr 24
@f1sls I think that is the colour carriers frequency/offset from the brightness carrier in the PAL system, right?
Show threadSTAN/F1SLSApr 24

@DO2SGF

Yep, it's this xtal, exactly... but in the 90's it was used to cadence a certain chip used on a certain PCB for... data transmission.

Tip for you : this thingy originates from your country and was very popular all over Europe in the ham community at the time...

Show threadScott VE3QBZApr 24
@f1sls @DO2SGF tnc?
Show threadSTAN/F1SLSApr 24

@ve3qbz @DO2SGF

Well, since it has no "intelligence" on board, it is considered as a simple modem/interface, the computer has to do the heavy lifting...

Show threadScott VE3QBZApr 24
@f1sls @DO2SGF I know what you are describing, I think (same circuit style can be used for RTTY tone discrimination I bet) but I wasn't a ham in the era when this would have roamed the earth
Show threadSTAN/F1SLSApr 24

@ve3qbz @DO2SGF

I see what you are thinking about (the "Hamcomm" modem), but it's not exactly that.

It's the famous (at its time) BayCom modem using a TCM3105 (and a very common 74HC04). It was designed for 1200 bauds packet and worked with some specific MS-DOS software when it came out.

It was designed in Germany and was a hit in Europe in the 90's.

Show threadScott VE3QBZApr 24
@f1sls @DO2SGF oh that's very cool! Like a packet dongle!
Show threadSTAN/F1SLSApr 24

@ve3qbz @DO2SGF

Yep! And the original version was even tinier than the home-made version!

https://www.youtube.com/watch?v=LmQlRecQBj4

Baycom - The Poor Man's Packet Radio Modem and Software (it's not)

YouTube
Show threadSTAN/F1SLSApr 24

@ve3qbz @DO2SGF

Schematics are still available, and I will build one on a plated through-holes protoboard using some old DIL chips and some modern SMD caps and resistors 😉

https://www.sm0vpo.com/use/baycom.htm

https://www.qsl.net/sv1bsx/Baycom/baycom.html

BAYCOM PACKET by SM0VPO

Show threadGiovanni - ZL2GXApr 24
@f1sls Only thing that springs to mind are a sequence of same values crystals used to make crystal filters (e.g. for sideband or CW)
Show threadSTAN/F1SLSApr 24

@gmoretti

It could have, but nope. All I can say is that it cadences a chip on a board used to transmit data... 😉

Show threadGiovanni - ZL2GXApr 24

@f1sls The multistandard "World Modem" chip? I think it has 7910 in the part number.

If so it worked well. I still have my one in the garage - used to use it for packet radio.

Show threadSTAN/F1SLSApr 24

@gmoretti

Quite there. Not the right chip btw... 😜

It is, indeed used for packet-radio (exclusively) and it uses the other famous modem chip at that time...

Show threadHendiApr 24
@f1sls I was thinking PAL first, but you could make custom zf filters out of it too