run rtl_433 and gqrx simultaneously

[Ralph van Etten]

Is it possible to run run rtl_433 and something like gqrx at the same time on the same Linux machine using the same rtl-sdr usb device?

I tried using rtl_tcp which seems to work fine with rtl_433 but I could not get it to work with gqrx. Is there any other way to show a real time waterfall and have rtl_433 decode at the same time ?

Thanks.

[Christian Z.]

We could quite easily add a rtl_tcp pass-through output to rtl_433. It's seems a useful idea. But you still need to get Gqrx to read from rtl_tcp.

[Benjamin Larsson]

I did this with rtlmux. It is a rtl_tcp multiplexer. But remember that
with this tool there are two masters. Things will break if you change
sample rate for example.

So the parameters must match for it to work. But you can adjust the
frequency in the same band.

MvH
Benjamin Larsson

[Ralph van Etten]

I did this with rtlmux. It is a rtl_tcp multiplexer. But remember that
with this tool there are two masters. Things will break if you change
sample rate for example.

I tried rtlmux and it works fine. 

It would be nice if you can change the frequency in gqrx and rtl_433 pick this up but for me that is currently not very important.

Thanks.

Ralph.

[Benjamin Larsson]

rtlmux is a hack so it is impossible for rtl_433 to detect a frequency change. The rtl_tcp protocol needs a change for that.

MvH

Benjamin Larsson