Daniel Ekman SA2KNG

I made a website for CyberEther during the weekend. It's pretty simple for now but I'm planning to add more stuff soon! cyberether.org

超小型人工衛星RSP-03、高度361.2kmからこんにちは！ #ハモるん です_[*´꒳`*]_°˖✧ 『RSP-03』（JS1YOY）の無線局免許状の交付についてお知らせするハモ🌟 #HAMORUNnow #RSP03

@mikelectricstuf @eevblog I would cut the cord in 5 pieces, unacceptable

@eevblog Would you hire someeone who cares so little about their stuff?

Tradie in the building is using this charger. Still works I guess...

Would you like to work in RF signal processing at @MuonSpace for SIGINT and RF science missions with a team of great engineers including myself? If you are eligible to work on ITAR/EAR and interested in helping us grow our cloud-based and onboard processing, my DMs are open. 🧵

I've made new releases of gr-satellites: 5.8.0 (GNU Radio 3.10), 4.15.0 (GNU Radio 3.9), 3.22.0 (GNU Radio 3.8). This will be the last release supporting GNU Radio 3.9 and 3.8. Maintainance for these branches will stop now.

EME Observer 📡 - map of 10 GHz EME stations, one-click Sked planner, moon ephemeris & signal path data. A tool I built for myself and tested in dozens of 10 GHz moonbounce QSOs. Try it here: dxer.site/eme-observer/ Read on 🧵⬇️ #hamradio #amateurradio #10GHz #GHzbands #hamr

@jwcutler Yes, it's a uputronics filtered lna for ~403MHz a few m from the 30el x-yagi

@knglaser do you have an LNA on your experimental satnogs station, 1888? It’s receiving great at 400 MHz!

@ea4gpz It started in this thread by DL7NDR and continued in the matrix-room. community.libre.space/t/z-sat-transm…

New blog post: Z-Sat VHF transmissions. Recently @knglaser has noticed that Z-Sat, a Japanese satellite launched in 2021 that has an amateur radio payload, is transmitting a digital signal continuously. Here I analyze a recording of this signal.

@Markus_Allard I en ID.Buzz går det in två isofix i baksätet och det finns plats kvar mellan för ett smal-ish barnsäte eller en vuxen.

Skit i det där nu. "Volvo" XC60 är alltså mindre inuti än vad Kia Niro är. Och det finns uppenbarligen INGEN bilbarnstolsdesigner i hela världen som kommit på att göra en enkel och smidig sådan. "Jo den här finns ju, tar ju bara upp 17 kvadratmeter, men man tar av och på med ett klick. Kostar 90 000".

On this #DDay , let us elevate our prayers to the One that defeated sin, death and the devil, the Lord Jesus Christ. Cry out to him, and he will save you. Holy God, Holy Mighty, Holy immortal, have mercy on us.

@ea4gpz yes, and just do it, way overdue to be honest. anyone can keep using the current releases, it's just frozen in time.

Is there anyone using gr-satellites in GNU Radio 3.8 or 3.9? What would be the impact of stopping gr-satellites releases for these GNU Radio versions? I'm considering dropping support for the maint-3.9 and maint-3.8 branches, since these cause more trouble each day.

New blog post: BGM-1 Doppler during the lunar landing. Some quick plots of the Doppler of @fireflyspace's lander as received by the @amsatdl and @PI9CAM groundstations.

Last Beacon belongs to @knglaser Daniel Ekman, SA2KNG from Sweden! 🇸🇪 Big Thanks!🫶 17:13:08 UTC Mission Counter=36024s (10h 24s, 1+2+4=7⃣) from reset📡! Total Resets=20 Swap Resets= 2 Battery=3.44V MCU=63°C PA=58°C MCU Current=33mA MCU3V3=3.50V MCU1V2=1.28V X=-13° Y=7° Z=-18°

@pe0sat @scott23192 and it's "Head" and not "Head-"

@scott23192 I checked it

[NOT tested - help?] Need to submit CW, or any hand decode to SatNogs? If using GNU Radio / gr-satellites, you can feed the 'Telemetry Submit' block from your command line (or script)! GRC file --> qsl.net/k/k4kdr//grc/s… (you can even specify the date/time of the decode!)

@scott23192 I'd say the additional amount of mess trying to replace it without removing the cross boom would be the same as at least pulling the boom out and fixing it temporary so the elevation part can be put on a bench. I just bite the bullet and disassemble everything. SatNOGS st: 1888

I don't suppose there is even a fraction of a chance that the position sensor in the EL rotator motor on a G-5500 can be replaced without taking down the entire array, cross-boom, etc?? Isolated failure / NOT cable or controller. Thanks!

A new stable version of gr-satellites has been published. As a highlight, this release includes FSK deviations for many satellites. @knglaser has spent a lot of work measuring by hand the deviations of many satellites, so decoding for these should now be more sensitive.

@gm8arv @pe0sat rtl_433 would be for the stuff in the center, I have tried that one previously. but this is maxing out the ISM band from 433.075 to 434.725

@knglaser @pe0sat You could try one of the RTL-433 decoding programs….

Anyone recognise the short bursts hopping around the ISM band ? It disappeared an hour later. Have been hearing it on the repeater frequency a few days. Quick analysis shows 6kbaud 136 bit long (g)fsk ish

@5ch4um1 it is one source, everything disappeared at the same time. I was under the impression that the tires sent the pressure very seldom to preserve power. this was absolutely peppering frames and during a pretty long time.

@knglaser Maybe tire pressure monitoring systems?

@CO2ESP_Raydel I have been hearing it on my HT tuned to a local repeater frequency, periodically for a few days, and was pretty annoyed by it opening the squelch (should set it to tone, yes) that's why I checked the spectrum. I'll keep an eye out for it.

@knglaser Very interesting... I saw it twice last year here in Havana then it disappeared. Definitely some sort of spread spectrum technique, the hoping seemed random. I haven't been lurking too much down there in ISM but I don't think it has been active since then.