rtl-sdr.com

Kerberos designers can correct me if I am wrong but if I got it right this is not like a power vs frequency calibration that you put in a table and update once in a while when some external condition (temperature...) changes. The 4 receivers have a common clock so they are coherent at a certain poi...

Hi everyone, I've done all these steps and am able to run the app on my pi4, but I can't get it to do anything. I Click Start Processing and I get no updates. I get no errors when uncommenting the logging in the run.sh either. rtl_test works on all the devices (at least I think, the output is below...

Yeah we've added an EEPROM programming step to the QC procedure now.

What version of librtlsdr does Kali run? I'd try uninstalling it, and installing it from source. Probably the version you have in Kali is setting all GPIO to zero initially for some reason.

how do we enable the noise source via gpio? Can i do it via usb? I am using gnuradio because I am doing beam steering instead of doa. I can use my own noise source but much better to use the internal source. To enable the noise source just call rtlsdr_set_gpio(rtl_rec->dev, 1, 0) in the code. See l...

Sorry about that. Signal levels are one thing that is QC checked so it should have been caught.

Contact us at [email protected] and [email protected] for a replacement cable.

If you're wanting to run code on the PlutoSDRs micro, you're going to have to learn Linux as Windows cannot run on the PlutoSDR.

I don't know why LNA's are so popular for 137 MHz satellites. At this frequency LNA's have minimal benefits unless you have a lot of cable loss. They're actually more likely to cause overloading issues. Try without the LNA, but with the filter in place. SNR is the best metric. I can only guess that ...

Might be power related. WHen SDR# starts, the RTL-SDRs will turn on and draw more power. If you're USB port can't handle the power for 2x RTL-SDR and the mouse, then the mouse might drop.

Try other USB ports.

You need to be careful of any phase corruption the LNA introduces. Unless the frequency is high UHF or L-band, I see no value to even trying an LNA as it's probably just going to make things worse since we don't need long cable runs.