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It's because radio folks like to ham it up on the airwaves
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| # ¿ Apr 29, 2024 07:37 |
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I live in a 14 story apartment building on the 8th floor and I don't have roof access. I do have a balcony, it is about 1.5m by 4m. I was wondering what kind of antenna setups would be useful. Maybe something that I can put horizontally along the length of my balcony. I have various RTL sticks, a LimeSDR mini, an HF upconverter, some 2m and 70cm portable gear (and a couple of baofengs :v)
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Jan 10, 2021 09:10
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I've spent like two days getting my LimeSDR Mini to play nice on my raspberry pi 4 with ubuntu 20.04. Now I have SoapySDR working, srsLTE working, gnuradio 3.8, osmocom, gr-gsm, etc. Next step is writing my own SIM cards so I can do 2G-3G-4G MitM on IoT devices that have their own GSM connection.
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Jan 23, 2021 21:17
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The LimeSDR mini seemed like a good buy at the time and it's a powerfui beast. But it is VERY finicky.
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Jan 23, 2021 21:17
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spankmeister posted:I live in a 14 story apartment building on the 8th floor and I don't have roof access. I do have a balcony, it is about 1.5m by 4m. Would still appreciate guidance on this.
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Jan 24, 2021 12:00
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I'm sure those interfaces all make perfect sense if you were huffing lead fumes in the 70's
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Feb 3, 2021 18:26
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Been playing around with my LimeSDR mini and OsmoBTS, after many failed tries of getting any kind of BTS to run on a raspberry Pi 4. Behold!  (I'm 001 01) Protip: getting YateBTS to compile on a raspberry Pi isn't exactly trivial but when you finally do get it to work, it still doesn't work because even though they say they support UHD it only works with a BladeRF as far as I can tell. The OsmoCom GSM stack has packages available for ubuntu and debian. I ended up installing the debian 10 packages on ubuntu 20.04 because the ubuntu repo doesn't have ARM packages. (Went with ubuntu in the first place because of availability of LimeSDR packages, wasn't so successful before on Raspbian) OsmoBTS is great but you need to configure and run all the parts of the GSM stack as a separate daemon, which ends up being like 12 different things. Still working on that. I've also gotten srsLTE to work for 4G but haven't been able to get my phone to see the network yet. Possibly due to frequency stability of the LimeSDR, perhaps due to my writable SIMs not being good. We'll see.
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Feb 9, 2021 08:09
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I mean I'm over here setting up GSM towers illegally and I'm not too concerned about it tbh. I would be surprised if the signal even makes it out of my living room. Jonny once I figure all this poo poo out I got you covered for cell service on rancho 290
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Feb 10, 2021 01:27
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Jimmy Carter posted:yo does that setup work with CBRS? I've got a hankering to set up my own cellphone network and dual-sim my way to glory I suppose the base station could work on any frequency but I don't think there are any handsets that can do that? Project update: managed to get the phone registered to the base station and sent an SMS!
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Feb 11, 2021 19:13
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aeflux posted:i bought one of these HackRF units about two years ago after reading a bunch about the guy who made it and some of the videos he made. the maths go whoosh over my head though There's many, many resources but these is a good place to start: https://www.rtl-sdr.com/ https://www.sigidwiki.com/
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Mar 5, 2021 19:28
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Achmed Jones posted:PSA: .radio domains are 25 euros a year if you're registering your callsign. There are a few other ways to get the ~90% discount, but this is the one I care about That's standard now because of the GDPR.
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Jul 29, 2021 18:41
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Achmed Jones posted:well, i'm gonna try it, but while i've done SMD before it's way easier in my experience to solder than ti unsolder this kinda stuff. that's funny beacause if I'm not careful doing smd work I usually blow around half the resistors and capacitors around the chip I'm trying to solder  glad it worked out for you!
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Jul 30, 2021 07:21
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thehustler posted:hey guys neat
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Aug 2, 2021 17:23
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maybe if you're into creating ambient techno
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Aug 3, 2021 23:41
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Kazinsal posted:my RTL-SDR V.3 and antenna showed up today so now I've got the VHF antenna next to the window and I'm skipping through various bands trying to find interesting stuff. found my first weird thing, a station at 169.440 MHz that was sending out regular, short pulses like so: could be a lot of things but this is a very good resource for identifying signals: https://www.sigidwiki.com/wiki/Signal_Identification_Guide also it seems your tuning is off by 20 KHz spankmeister fucked around with this message at 12:49 on Aug 8, 2021 |
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Aug 7, 2021 08:24
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whoops thanks for pointing that out, I fixed it in my post also
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Aug 8, 2021 12:50
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mycomancy posted:I'm far from an expert but I'm writing everything off. Gonna strip every cap, wire and tube out of this bitch and see if I can get her to power up. well if you do that it won't work at all!!!
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Aug 30, 2021 07:44
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rip to our silent key may he post in hell
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Nov 11, 2021 08:18
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Jonny 290 posted:grateful that we found this idiot hideout so we could all play beep boops and deedles with magic waves 
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Nov 11, 2021 08:54
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speaking of: https://www.youtube.com/watch?v=laYpGB1pWAc traveling wave tubes are wack
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Nov 11, 2021 08:55
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I just love how they "fixed" sync issues by writing each line twice. Idk how they do it now in software? does it figure out the sync?
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Nov 23, 2021 07:40
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the russian invasion is doomed to fail they're using baofengs https://twitter.com/mil_in_ua/status/1497961913292001283?s=21
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Mar 1, 2022 19:29
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hot openings in your area
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May 20, 2022 06:32
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Try sigidwiki https://www.sigidwiki.com/wiki/Signal_Identification_Guide e: Something like this could be described as a Theremin concert: https://www.sigidwiki.com/wiki/SP-14_(XP) spankmeister fucked around with this message at 15:55 on May 20, 2022 |
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May 20, 2022 15:51
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Achmed Jones posted:oh wait is this just doing composite video over a type F connector (or bnc for the ones with bnc in)? so i just would need a dumb adapter? yeah, wouldn't really make a lot of sense otherwise. RCA is a _terrible_ connector so pro gear doesn't use it much.
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Jun 8, 2022 06:31
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can you aim those things at satellites by hand?
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Aug 7, 2022 09:59
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what if you just ductape two baofengs together bing bong so simple
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May 24, 2023 20:31
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PIC16 seems way overkill for this but then again nowadays people use whole-rear end ESP32's for simple stuff.
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Dec 2, 2023 23:13
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CB people idiots? naaaah
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Dec 3, 2023 10:37
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hey neat i can see my house from there
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Dec 4, 2023 19:18
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| # ¿ Apr 29, 2024 07:37 |
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Wanted to hop on some local 'peater nets but I lost the charger to my FT-60 
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Dec 16, 2023 22:25
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