Is it possible to rtl_433 with a HackRF?

[niek237]

I tried using a project from somebody called hackrf_433 (https://github.com/Lefinnois/hackrf_433), but to no avail. (Got it compiled and everything but it doesn't work.)

Could someone help me out here?

[Christian Zuckschwerdt]

try the feat-soapysdr branch. it will likely work already. But it will be another month or so until it is fully tested and ready.

[niek237]

Thanks, I will try it as soon as possible.

Op dinsdag 9 januari 2018 21:10:19 UTC+1 schreef Christian Zuckschwerdt:

[Christian Zuckschwerdt]

Try it as late as possible :) There will be continuous, improvements over the next weeks.

[niek237]

Great to hear!

Op woensdag 10 januari 2018 08:31:55 UTC+1 schreef Christian Zuckschwerdt:

[niek237]

Basically got it working, only thing that isn´t working is changing the gain by adding ¨-g X¨, need to find a way to change the 3 different types of gain. Could also be due to the lack of ISM signals down here, but that seems not really the case (seeing that there are enough coming trough *if the amplifier is enabled* via GQRX).

[Christian Zuckschwerdt]

Thanks for the testing and feedback. Gain is up top on the todo list!

[Christian Zuckschwerdt]

Gain should work now. Use -g X to set an overall gain, if the driver supports this (I guess the HackRF doesn't) or -g ELEM=val,ELEM=val,... e.g. -g LNA=20,TIA=8,PGA=2 (for LimeSDR).
You need to reset or force pull the branch as I do frequent rebases on master.

[niek237]

Nice, gonna test it in a bit!

Op donderdag 11 januari 2018 13:10:27 UTC+1 schreef Christian Zuckschwerdt:

[niek237]

I'm pretty sure the gain works fine for the HackRF if you add "-g LNA=x,VGA=x,RF=x", but now the issue is that it doesn't decode any signals at all, the devices I used are all compatible, and when using a normal RTL-SDR it works.

It also states "found bandwith=0", maybe this could be related?

[Christian Zuckschwerdt]

Thanks for testing. The bandwidth=0 note shouldn't be a problem, it's just diagnostic.
Could you record a small sample (around 5 to 20 seconds) and check the data: is there some uniform noise? are there isolated signals visible? how loud is the baseline?
Use e.g. rtl_433 ... -n X grab_hackrf.cu8

[niek237]

Sorry for the extremely long delay, I´m going to try it out now.

Op zondag 14 januari 2018 14:41:52 UTC+1 schreef Christian Zuckschwerdt:

[niek237]

It did catch some signals in the I/Q file, however i´m not quite sure if they are strong enough. I could send you the CFILE, if you want.

Op dinsdag 16 januari 2018 16:43:04 UTC+1 schreef niek237: