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Honestly, the choices that were made are quite elegant, imho: out of 9 phase transitions, you can recover up to 4 bits in 4 cases, more than 1 bit for 4 others, and the last, which is the XOR of the 3 previous bits.
This means you can recover erasures in many cases ✨💜✨
Phase path truth table, associated to a phase transition diagram.

Currently working on an ALS162 time receiver. Getting my paws on NF C 90-002 really helped to think of an easier strategy to acquire and sync with the signal.

Turns out this signal is a 40Bd 3-state TCM.

First step, however, is to write a stub that will generate a baseband clone of the signal. For now I'm able to generate a static frame. The scrambler is implemented, and I'm working on the CRC-13.

An oscilloscope trace of the PPS and ALS162 time signal that mimics a frame shown in Henning Maier's slides for his GRCon'23 presentation: "ALS162 Time Signal SDR Receiver for GNU Radio".
An oscilloscope trace of the PPS and ALS162 time signal for a 58th second with a 0-bit in the timecode part, the sync packet and ALS Identifier.
Zoom on the previous trace to show the rising edge of the PPS signal complies with ALS epoch specification in NF C 90-002.

Basic summary of my comment to FCC filing 25-201, with regard to a secondary spectrum allocation on the 430-440MHz band (you have until 2025-07-21 if you wish to do it too: fcc.gov/ecfs/filings/express?p…)
Sim City 2000 Transportation advisor meme that says: You can't allocate commercial CC&T on ham bands! You *WILL* regret this!

Wrote a small utility to convert targeted APRS traffic to Nagios passive check events to monitor a remote site's power supply status.
A nagios screenshot depicting the power status report of a repeater. Said repeater sends its situation reports through APRS.

Got my hands on something quite special. Those who know know.
Plextor PX-B920SA Blu-ray/ HD-DVD drive.

🌸

Rewrote my DExtra / D-Star dissector, I'm able to read DV Slow data packets, DV Fast Data should come quickly once I'm laying my paws on a pcap trace to validate a few assumptions. Payload reassembly, superframe-wise, is being written.

FBB Dissector for Wireshark: here you go, code qualification has not been completed, I need to continue bug hunting (some additional traces needed).
github.com/dscp46/dissectors
FBB dissector showing the analysis of a SID exchange between a Winlink Client and a Post Office Server.
Same dissector showing the analysis of a B2F e-mail over a LZHUF payload

TCP reassembly is now correctly handled, time to write the LZHUF extraction routine (don't wanna T_T)

Finally took another take to implementing the FBB protocol dissector. The command interpreter is almost finished.
The last obstacle is to implement LZHUF decompression in LUA to decode payloads.

Funny JS hack (not yet in production, but soon to be): you can detect a slow internet link using readyStateChange events to offer a lighter web page :3
Screenshot of a demo page where network throttle settings are set to 56kbps. Transferred content size is 21.73kB.
Screenshot of the same demo page where no network restriction is applied. Transferred content size is 147.55kB.

Hamnet news:

New 35 mile link and repeater brought up on the regional network thanks to involved parties.
I'm implementing dark mode on our dashboard so our users with browsers in their car can display the call log without being hindered by light in the night. A few nuts and bolts need to be adjusted with the map, but we're almost there.

Today in the mail: Frieren Beyond Journey's end Original Soundtrack (THCA-60920)
Disc silkscreen depicting the Zoltraak magic circle

Today in the mail 🐱　💿💨
Starship Operators Original Soundtrack, Kenji Kawai (GNCA-1045)
( I wish they did a bluray release for that TV series :3 )
Front cover
Back album cover
Inside cover
Disc silkscreen
Obi

Today's discovery: YUView, a cross-platform YUV player with advanced analysis features 💜

github.com/IENT/YUView

A screenshot of YUVView showing motion vectors for a HEVC file.

Et c'est parti pour la saison des SMS d'arnaque au dédouanement. Pour suivre/dédouaner un colis, ne suivez pas le lien dans le SMS, copiez-collez le n° de suivi de votre colis sur la page de votre société de transport.
DHL-FR: Votre coIis [numéro fictif] est en attente de Iivraison. Des frais de douane de 3.99E sont requis pour le dédouanement. Rendez-vous sur : [lien frauduleux]

Line cards/modules I decommissioned not so long ago :3
A cardboard box of Avaya DS1 and analog line cards, C-Lans and test module. Medpros are in another box.

I think I'm holding on something decent for the architecture of Hamnet access networks to enable roaming /P prefixes.

Wrote a little something to read Host & Drive Revocation Lists from a Media Key Block. Question is: should I waste time to validate records against the public key in the spec? :3
Terminal output showing the content of a media key block, read record by record. On this screenshot, we can see the MKB version type and Host Revocation List.
Other screenshot that shows part of the Host Revocation List, the Drive Revocation List, the Media Key Verification record, and the structure of the rest of the file.

My blu-ray drive told me it's not friend with my HCert anymore.
Nevermind, I've been persuasive enough to get it to read actual data even if bus encryption is "required" :3c
LibreDrive Information: Status: Enabled Drive platform: (redacted) Firmware type: Patched (microcode Access re-enabled) Firmware version: 1.03 DVD all regions: Yes BD raw data read: Yes BD raw metadata read: Yes Unrestricted read speed: Yes

Flirting with limits (illustrated)
3D printer with a tall printed part, and the extruding nozzle at the same level as the top of the part.
Same printer taken from another angle to show the extruder's Z axis slide with the Z+ limit switch.
Close view of that limit switch, showing a clearance of less than 5mm with the Z slide

Coming soon: remote control of analog repeaters through #Hamnet. cc @Fred F4EED/KI7QQP
Control plane uses MQTT, either in fire and forget mode, or with reliable delivery and explicit command acknowledgement. #hamr #hamradio
SVXReflector log trace showing the controlled repeater leaving and connecting back, due to multiple "change module" commands being sent.
Sender debug trace showing the command being sent reliably through MQTT and the acknowledgement message being received.
Agent debug trace showing the command being received reliably through MQTT and the acknowledgement message being sent back and the action being launched (switching to room frm).
#hamradio #hamr #hamnet @Fred F4EED/KI7QQP

Today in the mail:
楽園 − 石川セリ (1985, Philips 32LD-45)

🐱✨💜
Little kitty with blue eyes

Today in the mail
Perfume Live 2021 (Polygon Wave), UPXP-1015, blu-ray, front side.
Same album, back side. Track list: System restart (Perfume LIVE 2021 intro) Fushizen na girl Pick me up Saisei Future Pop TOKYO GIRL I still love U Macaroni Polygon Wave (Original Mix) Mugen Mirai GLITTER - P.T.A.'s corner - FAKE IT Polyrhythm Time Warp Miracle Worker MY COLOR Mawaru Kagami
Same album, jewel case inside, with a colorful booklet and the disc, with a black-and-white wireframe-stylized sphere silkscreen.

I was unable to pull the data wire, since the duct was obstructed, so I went the wireless way. Next step: attempting to switch telemetry from legacy to standard format.

Visiting Tara l'exploratrice, she's so adorable 128156; 128049;

#128156 #128049

New bait & switch technique: fake options and close button cc @Deceptive Design

MFW abandoned unpowered systems are holding precious place. #IfYouKnowYouKnow
#IfYouKnowYouKnow

Home + Ham networking


Self hosted maston, now with network failover :3

J'arrive à me connecter et à utiliser les touches spéciales, mais les frappes clavier ne sont pas reconnues... Ré-essayé depuis X11 au lieu de Wayland, et sur un autre numéro, mais c'est pas mieux. Il va falloir que je gratte pour voir ce qui ne va pas...

@Jelora, est-ce que serveur minitel est encore opérationnel? Je viens d'apprendre que Xtel est encore packagé sur Debian, et si c'est encore le cas, je vais sortir mon Sportster Flash pour tester ça :3
@Jelora

Neat 💜 (even if it doesn't have the \oiint command.)
Take that, twitter.

TIFO friendica supplies a Mastodon-compatible API since 2021.06, meaning that I can use Tusky with my instance 💜

Tests in /P, the antenna tunes well on 40m with this setup.

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