Reposted by @2ftg.bsky.socialKevin Santo Cappuccio @jumperless.org · 22/08/2026Me telling people how to use KiCad: "Just make your own footprints it takes like 2 seconds" Me actually using KiCad: 3 days and 8 printed mockups in for a single cursed 2x35 pin header / card edge footprint. 3143
2ftg.bsky.social @2ftg.bsky.social · 04/07/2026Back in the day this payphone needed two of these payphones at minimum for a phone call. 020
Reposted by @2ftg.bsky.socialCatherine @whitequark.org · 08/04/2026chat, please rate my NVIDIA BlueField-3 DPU power, cooling, and communications solution yes, that's a hairdryer. yes, it is very loud. yes, it reduces the temperature from "96C and after 10 minutes the NVMe gives up trying to read" to "80C" 5491
2ftg.bsky.social @2ftg.bsky.social · 08/04/2026This way one of the ports stays original and can be used to feed power to the LNB. While the other two will output the RAW IF from the MXL803. 000
2ftg.bsky.social @2ftg.bsky.social · 08/04/2026Here's some bad graphs about the two ports. The horisontally polarized one seems to have 10.400 GHz LO and the vertical one seems to have a 10.000 GHz LO. 100
2ftg.bsky.social @2ftg.bsky.social · 08/04/2026Let's feed it some RF. The 3rd harmonic from the ADF4350 synth is plenty strong. Hell, even the 5th one is. As I used that and a homebrew version of this in the past to align one 19GHz LNB to 20GHz. 100
2ftg.bsky.social @2ftg.bsky.social · 08/04/2026Even without any commands, the MXL862 does something. 100
2ftg.bsky.social @2ftg.bsky.social · 08/04/2026Instead, I soldered in some wires and gave it power. 100
2ftg.bsky.social @2ftg.bsky.social · 08/04/2026There is no control bus, it is just all strapping resistors apparently. So far I have not bothered to map out it's connections that much. 100
2ftg.bsky.social @2ftg.bsky.social · 08/04/2026The LNB side of things is managed by yet another MaxLinear chip without public documentation. An MXL803. It seems to be a dual down converter with all the frontend bias control and charge pumps for pHEMT biasing integrated. It uses a 50MHz reference oscillator here. 100
2ftg.bsky.social @2ftg.bsky.social · 08/04/2026The large blobs connecting the IF from the downconverter to the MCL862 are hilariously large. The middle DC pin is 1.8V supply to the LNB end of things. 100
2ftg.bsky.social @2ftg.bsky.social · 08/04/2026The ports look mostly the same. Except port 1. Which has some additional LC-filtering on it. I suspect it is the nominal control port, to which the FSK commands for the MXL862 get sent to. 100
2ftg.bsky.social @2ftg.bsky.social · 08/04/2026The output then goes into a 3-port splitter, seen here in the middle and goes to the three output ports. 100
2ftg.bsky.social @2ftg.bsky.social · 08/04/2026This MXL862 chip does the digital magic. A "Full-Spectrum Capture ® Satellite Digital ODU IC" The two LNB IF's just get digitized by it. In full. And then gets DAC'd back out to 950 MHz - 2150 MHz. 100
2ftg.bsky.social @2ftg.bsky.social · 08/04/2026New day new LNB. This time a Digital Channel Stacking (dCSS) one from Canal Digital. It digitizes both polarizations and then puts the requested channel at the requested place in the down link. Too bad the MaxLinear MXL862 has no public documentation. A quick teardown thread 100
2ftg.bsky.social @2ftg.bsky.social · 11/02/2026So very same. Every time I have attempted to use ML stuff for hobby or professional stuff that is not coding. It has been either fully or partly wrong, or comparable to 5minutes of searching. 020
Reposted by @2ftg.bsky.socialOsmoosi @oh3cnz.bsky.social · 10/02/2026Folks should at least be able to present theory for their claims, and failing that, simulations. The scientific method hinges on presenting theoretical foundation for reproducible proof, and if you got neither, you're just regurgitating what a stochastic parrot fed you (vomited down your throat!) 131
2ftg.bsky.social @2ftg.bsky.social · 11/02/2026God damn I dislike this slop so much. Zero effort to even attempting to read it. And I see folks sometimes reposting stuff with typos and duplicates or just straight up false stuff. 010
Reposted by @2ftg.bsky.socialCatherine @whitequark.org · 10/02/2026age verification? i still feel like linux 2.6 is kinda new bsky.app/profile/jcog... 2414
Reposted by @2ftg.bsky.socialTinyTapeout @tinytapeout.com · 10/02/2026Join us tomorrow at 19:00 CET for the announcement of the TT08 demoscene competition winners! www.youtube.com/live/il_qKTi...youtube.comTiny Tapeout demoscene competition winners will be announced!YouTube video by Zero To ASIC Course 045
2ftg.bsky.social @2ftg.bsky.social · 10/02/2026Another board from a module. With some Sprague made 2N2219A. 7401 datecode. 010
Reposted by @2ftg.bsky.socialnnnilabs.net @nnnilabs.net · 08/02/2026ready for the next prototype github.com/macaba/TheMa... 181
2ftg.bsky.social @2ftg.bsky.social · 09/02/2026It's a TUV 2132,2 of a Nokia TU21000 series FM12/24-400 link. 010
2ftg.bsky.social @2ftg.bsky.social · 09/02/2026Inside a plugin module from an Ancient Nokia radio link. 130
2ftg.bsky.social @2ftg.bsky.social · 26/11/2025The automotive use of these new steels is also why reparability is going down. As welding rusted out parts is no longer viable. 000
Reposted by @2ftg.bsky.socialCatherine @whitequark.org · 01/08/2025happy mailing list membership reminder day 0151
2ftg.bsky.social @2ftg.bsky.social · 02/08/2025The paper writing. Or even writing it up for my homepage sucks so much. 000
Reposted by @2ftg.bsky.socialBenn Jordan @bennjordan.bsky.social · 31/07/2025When Behringer runs out of repos to copy and paste on Émilie Gillet's Github page, a whole lot of dystopian Chinese factory town workers will be out of a job. 310411
Reposted by @2ftg.bsky.socialHackaday @hackadayofficial.bsky.social · 31/07/2025Farewell Shunsaku Tamiya: The Man Who Gave Us The Best Things To Buildhackaday.comFarewell Shunsaku Tamiya: The Man Who Gave Us The Best Things To BuildHackaday Article 073
Reposted by @2ftg.bsky.socialDan KD7WRJ @danradiopdx.bsky.social · 20/07/2025Ham Radio Users Clash With Starlink Rival AST SpaceMobile Over Spectrum Use | PCMag share.google/CXpKxl1CHSA7...share.googleHam Radio Users Clash With Starlink Rival AST SpaceMobile Over Spectrum UseAST wants to use the 430 to 440MHz band for a satellite-to-phone service. Ham radio enthusiasts say the company's plan is vague and could interfere with their slim slice of spectrum. 493
2ftg.bsky.social @2ftg.bsky.social · 30/07/2025How about recapping your stove? Because I have done that. 110
2ftg.bsky.social @2ftg.bsky.social · 22/06/2025Kester and whatever name Multicore is under now are fine. I have used them over Chipquik myself. As for flux, there is also MG Chemicals, which seems more available in some places as well. 000
Reposted by @2ftg.bsky.socialRue Mohr @ruenahcmohr.bsky.social · 22/06/2025For your entertainment! Here is switching on and off an 800A breaker I got from ewaste. It has an internal motor to wind the spring, but its not powered up, so the manual winder has to be used. 8203
Reposted by @2ftg.bsky.socialN² @antire.al · 15/05/2025the Marathon alpha released recently and its environments are covered with assets lifted from poster designs i made in 2017. @bungie.net @marathonthegame.bungie.net 262120675211
Reposted by @2ftg.bsky.socialTomb💀Time @tubetime.bsky.social · 12/05/2025so i wrote another program for the IBM 1401 computer this past week. i wrote what it does on the card, but can you figure out how it works? the program is ,008015,022029,036043,048056,061066,070074U%U2MM%U2070WU%U2BB048B.048DATA⯒ that last little character is special! 7602
Reposted by @2ftg.bsky.socialRue Mohr @ruenahcmohr.bsky.social · 27/04/2025Mowerbot back after a night on the lawn. 2301
2ftg.bsky.social @2ftg.bsky.social · 21/04/2025Low leakage and low ripple? We used some medical grade power supplies in things because those had the lowest noise of all the COTS power supplies we could get for the price we wanted to pay. But the large transformer could be an attempt to meet the medical isolation requirements. That's my guess. 110
2ftg.bsky.social @2ftg.bsky.social · 20/04/2025Is it a Zener and not some TVS diode for ESD protection? 110
