I've flashed #OpenWRT 24.10 onto my old #FritzBox 7360 v2.
I had to compile #FreetzNG (freetz-ng) to extract the VDSL2 modem firmware from the OEM image - required when i want to go faster than 22Mbps.
Tomorrow, i'll integrate it into #HomeAssistant, via collectd-mod-mqtt.
The ISP must've upgraded their hardware. A few years ago, they told me that 50Mbps would be the maximum on my POTS line.
🧵 2/n *yells "WHOOP-WHOOOOP, Stratum 1, baby!" as he climbs up the ladder and plonks his butt right next to the PTB*
(PTB is like NIST, but Germany)
The PPS pin of a ublox NEO-6M is connected to the Carrier Detect of a Prolific PL2303 ttyUSB0.
👀 What do you think of my numbers?
🧵 4/n my #GNSS #HomeLab #NTP server still rejects my #Ublox NEO-6M - "x" prefix means "falseticker".
I've created a trip hazard in the hall way, by temporarily relocating the box and the dongle to the kitchen. The Ublox now faces north, straight out the window - mostly unobstructed sky, instead of under the roof. I'm getting better SNRs, mostly above 20-30+.
Perhaps this 6th gen Ublox isn't the right choice for time applications..
..do i have a budget for a used LEA-M8T? ("T" means Time apps)
🧵 5/n Playing around with my #Ublox NEO-6M #GNSS module is wild - cgps/gpsd sometimes reports a speed error near Mach 1 🤣 🍻
Also, #NTP uses it as primary sync source, for 20+ minutes now. PPS via Prolific USB-serial and pps_ldisc is still a "falseticker".
👉 Copilot says "FTDI chips (FT232R/231X) can export PPS on CBUS lines with sub-µs latency."
Perhaps, the recent #Bundeswehr practice maneuvers in #Hamburg messed with GNSS? But spoofing/jamming the harbour?! They wouldn't! Would they? 🤔
🧵 7/n mmh, yummy scope creep! 😅
It seems that 8th gen #Ublox modules can drop-in-replace 6th gen.
I've found a bare NEO-M8T for 18€ shipped - the plan is to de-solder the NEO-6M, and put the M8T in its place.
Not only will this give me access to all(?/4) #GNSS systems, it's also the T variant for precision time applications - ideal for my #NTP server.
I'll have to #dIY / #macGyver the de-soldering with a crude hot air gun + K-type thermometer, because i don't own a hot air soldering station.
Multi Purr Puss 
Koutsie 