Questions tagged [rtl-sdr]

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4
votes
3answers
463 views

PiFm dBµV/m without an antenna

I have been wanting to tinker with the Raspberry PI to learn more about electromagnetic frequencies; however, before initiating anything, I read the legal debates regarding PiFm. It appears that both ...
2
votes
1answer
302 views

Raspberry Pi 3 noise

I've noticed that my Raspberry Pi 3 is spewing much noise into my SDR radio which I listen remotely. As expected, any SDR on HF frequencies is very noise sensitive. Connected directed to a laptop the ...
1
vote
1answer
2k views

Raspberry Pi 3B+ freezes randomly

General setup My RPi is connected to a mouse, keyboard, and monitor. My swap size is set to 1000 MB and I'm not using wifi. Problem The RPi freezes randomly, meaning the GUI is frozen, no SSH ...
1
vote
0answers
1k views

Radio frequency spectrum analyzer for Raspberry Pi [closed]

I am doing research for a new project and would like to poll the community for any advice. I want to build a spectrum analyzer on the Pi that will log frequencies and the power level they are at. I ...
1
vote
0answers
768 views

Any way to receive DAB radio on the Raspberry Pi?

I've been looking around and can't seem to find something where someone has got DAB radio working on the Raspberry Pi with an RTL-SDR. It seems possible, as the RTL-SDR is fully capable of receiving ...
0
votes
2answers
144 views

How to Pipe RTL_FM audio out to minimodem in Rasberry Pi Strech?

I am trying to decode the data which is received through rtl_fm with rtl-sdr. I am using the below command rtl_fm -f 144.5e6 -s 200000 -r 48000 | aplay -r 48000 -c 1 -f S16_LE | minimodem --rx 1200 -...
0
votes
0answers
52 views

Raspberry Pi SDR Radio with aplay and minimodem not working

I am trying to receive data which is transmitted at 144.025 Mhz, using RTL-SDR with the below command and it works perfectly (even tested with local fm radio and the audio is good).. rtl_fm -f 144....
0
votes
0answers
59 views

How to stream audio/video from Raspberry Pi to Windows PC

I have a Raspberry Pi 3b that I am using as a radio server with a rtl-sdr (Realtec Software Defined Radio). I would like to have any audio coming from the Raspberry Pi to be streamed to my windows 10 ...
0
votes
1answer
165 views

how to run rtl_fm from a bash script

I'd like to know if it's possible to run rtl_fm from a .sh file: I know it's possible, but what I'd like to do is to run it, record for 5 seconds (I can place a sleep here) and stop the process (in ...