I'm attempting to get OP25's multi_rx.py decoding multiple channels on a R2 but after running a bit the airspy locks up and doesn't respond to any commands any more. lsusb shows the device is still at

#airspyr2 #firmware #gnuradio

That was VERY nicely handled, Greg. {^_^}

#gnuradio #airspydiscovery #experiment #RTL

You may want to use an attenuated antenna to first obtain a library of patterns while in close proximity of each device. Most EMI receivers utilize a band pass filter to narrow the band width to the f

#gnuradio #airspydiscovery #experiment #RTL

I wrote them a letter explaining that I was a radio hobbyist that lives a few miles from them, and that I was picking up some strong RFI from something in their house that turns on at 7:00 PM every ni

#gnuradio #airspydiscovery #experiment #RTL

Did it take a letter from the FCC or did he listen to you when you gently informed him he was radiating illegal signals. Or has nothing happened at all? {o.o}

#gnuradio #airspydiscovery #experiment #RTL

Future generations of DisplayPort, HDMI, and DVI should all grow an encryption protocol for this reason. Just the same, I still automatically giggle at the idiots who think I'd fall for their claim to

#gnuradio #airspydiscovery #experiment #RTL

Um, er, ah, perhaps you should drag open the books that explain some RF reality to you. The first consideration is learning the actual noise characteristics of the environment in which you are working

#gnuradio #airspydiscovery #experiment #RTL

Nathan, I believe they definitely emit some. At least in the case of computer monitors. Great Scott on you tube uploaded a video a few days ago where he demonstrates eaves dropping on a monitors scree

#gnuradio #airspydiscovery #experiment #RTL

For the lower end of the HF band, 0.1 to 10 MHz, an amplified loop is a good choice because a dipole would be so big, A lot of appliances radiate up into VHF and UHF, where a smaller directional anten

#gnuradio #airspydiscovery #experiment #RTL

In the 1980s people were picking up emissions from CRT type monitors (all we had) and painting local copies of the screens based on intercepted noise. That is why TEMPEST criteria were invented for mi

#gnuradio #airspydiscovery #experiment #RTL

Hello Nathan, Sounds like a very interesting research project and I imagine a LOT of people could learn from your findings! One thought though: you mentioned this research was going to be "EMF noise t

#gnuradio #airspydiscovery #experiment #RTL

Hi all, I am a graduate student currently exploring a new research project on activity recognition within a household setting by sensing when a user turns on or interacts with a particular appliance o

#gnuradio #airspydiscovery #experiment #RTL

No and abso-damn-lutely no. {^_^}

#hardware #spyserver #sdrsharp #gnuradio #airspydiscovery

No. The discovery has a much better front-end: More filtering, Higher sensitivity and lower noise figure. If you are already using a Discovery, the only remaining optimization is your antenna.

#hardware #spyserver #sdrsharp #gnuradio #airspydiscovery

Does it make any sense to use Spyverter with Airspy HF+ Discovery? Would it improve HF 15 to 30 MHz receive sensitivity, etc?

#hardware #spyserver #sdrsharp #gnuradio #airspydiscovery

I do not think that there is any way to access a spyserver via gnuradio (yet, maybe someday). Your best bet to access an Airspy HF+ device in gnuradio is via Soapy since there is a driver for that htt

#spyserver #gnuradio

As a Linux user, you should be able to fiddle with makefiles and use a compiler. Here's the first google result I found: https://www.reddit.com/r/RTLSDR/comments/9zaj5l Note that your question is unre

#spyserver #gnuradio

I have spent the better part of a full day trying to get this to work, and I am looking for help from anyone that has already succeeded at this. I have tried Ubuntu 16.04LTS, 18.04LTS, and finally 18.

#spyserver #gnuradio