RTL-SDR.com

Sure, the kinda go-to for this is rtl-sdr.com's device (just search amazon). They have a great and comprehensive site, too: https://www.rtl-sdr.com

It's mostly old guys erecting large antennas to connect their boat anchor tube radios to, from what I read online. It's a great hobby if you are in it for the actual tech itself. Check out e.g. https://pysdr.org/ for a nice introduction. There is https://www.rtl-sdr.com/ to get you started and https://en.wikipedia.org/wiki/GNU_Radio for more advanced stuff. You don't need a license to listen! Also, people are doing some crazy stuff: https://pietern.github.io/goestools/guides/minimal_receiver.html

A lot of the discussions and chat I follow are on Various Discord servers and forums like https://www.rtl-sdr.com/, also look into various defcon/bsides groups there's usually a handful there too. I joined the crowdsupply kraken funding and have been impressed with the hardware so far, but I only knew of them from their previous hardware. It's still a pretty niche topic relative to other things.

Not them but since it's offtopic anyway, here's what I used: https://www.rtl-sdr.com/ bought the kit off Amazon and was able to set it up on Windows and Linux after following a few instructions. There's tons of software and projects out there to expand it, and that website has links to a lot of them.

Surely. https://www.rtl-sdr.com/ is a great site for updates on new hardware and software. Most commonly, I use my SDR for: - Listening to ham (amateur) bands - Receiving NOAA/Meteor satellite images - Airplane tracking There are quite a few other use cases, which I've outlined in several talks that I've presented at conferences over the years; https://github.com/tomswartz07/CPOSC2017/blob/master/SoftwareDefinedRa…

> Surely we can come up with something more interesting and potentially discovery-orientated, or at least a little more awesome, such as perhaps radio astronomy or somesuch? There are a many examples of other things that people have come up with. head over to http://www.rtl-sdr.com/ and the "Tutorials" section (under "Featured Articles") includes these: * ADS-B Aircraft Radar * NOAA Weather Satellites * Meteor-M Weather Satellites * P25 Digital Voice Decoding * Trunked Radio Following * TETRA Voice Decoding * ACARS Decoding * DRM Radio Decoding * AIS Ship Tracking * Radio Astronomy * POCSAG Pager Decoding * Decoding Weather Balloons * Analyzing GSM Signals * Measuring Filter Characteristics * Inmarsat STD-C NCS EGC Decoding * Outernet

This is new kid on the block of Software Defined Radio. More to be read about technology: http://rtlsdr.org/ One of the SDR portals: http://www.rtl-sdr.com/ You can buy cheapest SDR for 20USD these days. Great to play, and there is even a marvelous GNU Radio available (http://gnuradio.org/) - Yikes :)

There are lots of "this" in that article. There is SDR, satellite downlinks, Amateur Radio protocols, and receiving equipment. My path started when I bought one of the RTL-SDR bundles from Nooelec (https://www.nooelec.com/store/). It came with four different antennae and some adapters to connect it to your own antenna. I spent some time reconstructing projects that people had posted on rtl-sdr.com (https://www.rtl-sdr.com/). I installed Gnuradio companion (and various Gnuradio bits) and built an FM receiver as well as a receiver that could see the signals coming from a wireless light switch. I decided I wanted to transmit too so I bought a HackRF-one (https://www.nooelec.com/store/hackrf.html). It covers way more spectrum than the RTL-SDR and it has great support in a lot of packages. What I wasn't able to do very successfully with it was look at cellular signals so when Crowd Supply ran a campaign for the Lime SDR (https://www.crowdsupply.com/lime-micro/limesdr) I got one of those. I recreated the cell basestation setup that the Myriad folks did using an old GSM phone I had in my drawer (marked "Cingular" :-)) I realized I wanted to be able to send more complex things at different frequencies so I took a detour and studied for, and received, my Amateur Radio "Extra" license (AI6ZR). Which allows me to transmit at much higher powers on many more bands. There was a company near me that was making SDRs and they needed software help, I offered to help if they would let me…

Hunting for Space Radio Pirates on the US Military Fleet Satcom Satellites[2023] https://www.rtl-sdr.com/hunting-for-space-radio-pirates-on-the-us-mili… prisoners of gravity: a favorite from_my_youth 1) https://inv.nadeko.net/watch?v=-deHrvY2b08&list=PL08AD26AD9CEA3E90… 2) https://inv.nadeko.net/search?q=prisoners+of+gravity

Would recommend getting a Ham technician license, as it will prepare you to understand the LNA and filter hardware. Best regards =3 https://www.youtube.com/watch?v=g5uV6zI_978 https://github.com/AP-HLine-3D/HLine3D https://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/ https://github.com/byggemandboesen/H-line-software

Search the site hackaday.com/ for a lot of articles on 'SDR' and 'software-defined radio' going way back. This site seems to be keeping on top of 'software defined radio news and projects': https://www.rtl-sdr.com/ ... and it has a forum. YTube has some interesting info on what's going on.

The 137 MHz band is sadly abandoned and the days of current satellites in the sky are counted. So if you are planning to experiment with satellite reception, HRPT is recommended at 1.7 GHz instead. Needs a more capable SDR device (however the RTL-SDR v3 might still fit if cooled properly), needs a more complex antenna, but the resolution is much better: https://www.rtl-sdr.com/a-comprehensive-beginners-guide-to-hrpt-weathe… Actually even the HRPT streams are seem to be phasing out, but will be supported on the MetOp line for a long time (MetOp-B has been launched in 2012, the -C in 2018, and the satellites generally have a 15 years of lifetime). Future live streams will be transmitted in the 5 GHz+ range, which needs an even more complex antenna and probably a downconverter.

Did you maybe write down more details somewhere else? Also, consider sending your article to the https://www.rtl-sdr.com/ blog, it is really cool work!

I know little about this but I think the device is called HackRF and costs about $350. It can act as a receiver and sender. If you want to tinker with radio stuff for less money, you could start with a receiver only and try RTL-SDR. RTL-SDR is software-defined radio (=SDR) based on a particular RealTek (=RTL) chip. Suitable devices are as cheap as the right DVB-T USB receiver (check the list in the reddit-wiki for what might work and what might not) but there are more optimized devices for approximately $40 (un)available (because supply chain) - have a look at the rtl-sdr shop for those. https://www.rtl-sdr.com/ https://www.reddit.com/r/RTLSDR/

I've had a lot of fun doing Hydrogen line backyard astronomy. I wrote up an article on my experience [1]. These are two great sites as well [2][3]. [1]https://hmcguinn.com/posts/hydrogen-line/ [2]https://www.rtl-sdr.com/cheap-and-easy-hydrogen-line-radio-astronomy-w… [3]https://physicsopenlab.org/2020/09/08/milky-way-structure-detected-wit…

I only have an rtl-sdr, it can only receive but is good enough for what I need. Also heard good things about hackRF (can tx as well as rx). rtl-sdr.com has a buying guide: https://www.rtl-sdr.com/

I think https://www.rtl-sdr.com/ would be a good place to start learning about SDR USB sticks. But beware -'this rabbit hole goes deep!

https://www.rtl-sdr.com/ Don't go for the 15$ bare-bones options. Buy one of the 50-100$ kits so you have at least some basic antennas and necessary cables.

there's a lot of variety out there. you can spend your entire ticket dorking out on digital modes (esp if you go for general+ and have access to lower bands) like FT8, FT4, Olivia, WSPR [0] to see how far out you can get on as little power as possible and so on. Or if you want to ease into it, you can get a ham radio w/o a license, or cheap SDR and try to receive and decode weather sats, etc [1] making tiny WSPR boards and things like APRS [2] interest me more than ragchewing or nets on 40 or 80 meters most of the time forgot my favorite, amateur SSTV (analog baby!) - can see some analog and hybrid (easylink over internet.. cheating) http://www.g0hwc.com/ 0 - http://wsprd.vk7jj.com/ (click search then map to get an idea) 1 https://www.rtl-sdr.com/using-50-lines-of-python-code-to-decode-noaa-a… 2 https://aprs.fi/

I got a LimeSDR when they first made them. Unfortunately the whole SDR software ecosystem is pretty terrible. Even with something as popular and widely supported as RTL-SDR most of the software is unusuable (with some happy exceptions). It also doesn't help that there is an absolute mountain of SDR software out there, but 99% of it is "this is cool, I'm going to write... eh nevermind" type stuff. There's so much ( https://www.rtl-sdr.com/big-list-rtl-sdr-supported-software/ ) that I can't even find the one good one I found last time I used an RTL-SDR. I guess that is what happens if you play with software written by uber-nerds for uber-nerds. Anyway in conclusion I would NOT recommend getting a LimeSDR unless you are really really into SDR and it's your only hobby, or better yet, your job.

I didn't realize they were generally spammy and not limiting updates to just the single, subscribed projects. These are the other places related to KerberosSDR/KrakenSDR: https://www.rtl-sdr.com/forum/viewforum.php?f=9&sid=90f27fc05d6086… https://www.facebook.com/groups/235979877597815/ https://www.rtl-sdr.com/tag/krakensdr/

If I were in your shoes (and I often am, in various other contexts), I'd get the cheapest SDR dongle, and then use your favorite search engine for tutorials (there's plenty). First two hits for "how to get started with sdr" on duckduckgo give you awesome starting points: - https://www.rtl-sdr.com/rtl-sdr-quick-start-guide/ - https://hackaday.com/2012/06/27/getting-started-with-software-defined-… From there, figure out what device you're going to target. The 434 MHz devices are quite ubiquitous (and easy to understand) -- door bells, old school thermometers, remote switches, what have you. Even without your own device, I'm sure you will find plenty of traffic near you (if you live in a reasonably densely populated area), so you can at least practice. And then it's down to grinding it out -- read docs, experiment, repeat. :-) HTH.

Security through obscurity is never a good strategy. If the public starts listening it is good. If the services that stream online there are other ways to monitor those frequencies such as rtl-sdr [realtek software defined radio] that folks will start to use to monitor this. https://www.rtl-sdr.com Listening to police radio should be as available, recorded, and easy as bodycamera footage should be. It will never be until we actually start to monitor and complain when it is made unavailable.

When I was messing around with ADS-B stuff for work I found this website to be very helpful with lots of ideas/links for projects: https://www.rtl-sdr.com/

I recommend getting one from here: https://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/ Great hardware with driver/software compatibility

What are the odds that they were following one of those "How to build a do-it-yourself radio transmitter using JUST a raspberry pi!" articles? https://www.rtl-sdr.com/transmitting-fm-am-ssb-sstv-and-fsq-with-just-…

Getting a license is your first step if you want to transmit. If you are in the US, the ARRL produces the training material for the various tests. There are free apps that go over the test questions but I like having a little more context to the answers. With your background you'd probably need to devote time mostly to learning the rules and regulations. You can take all 3 tests in one sitting for a $15 fee and be done with it. Each test gets you more privileges (power, frequencies). Even without a license you can receive with a cheap SDR and home brew antenna. This blog has many examples of that: https://www.rtl-sdr.com/ Finally, you may want to find a local club. Usually visiting during a "contest" will enable you to get on the air. In the US you don't need a license to use the radio if you are with a properly licensed operator. Hope you find the hobby as fun as I have.

For a more capable model, I would recommend the ADALM PLUTO from analog devices. It's ~$150 USD (if I remember correctly)and has a range of 385 to 3800 MHz @ 20MHz bandwidth, but a very simple hack increases it to 70 to 6000 MHz range @ 56MHz bandwith. Check here for more info on the hack: https://www.rtl-sdr.com/adalm-pluto-sdr-hack-tune-70-mhz-to-6-ghz-and-…

I recently read here that a Raspberry Pi can be turned into an SDR transmitter by attaching a wire to a pin. On paper, the specs look impressive (for a $20-$30 device), but I would love to know the RF quality of the resulting waveform. I cannot find the discussion, but the info is here: http://www.rtl-sdr.com/tag/rpitx/

For what it's worth, you can get very good reception from NOAA satellites using a much simpler antenna: http://www.rtl-sdr.com/simple-noaameteor-weather-satellite-antenna-137… Said from experience of having built something more complicated and having it perform worse than two pieces of copper tubing stuck in a piece of scrap plastic.