Re: [Discuss-gnuradio] How to change center frequency automatically in rx usrp?

[Sinta Novtafiani]

Hey Julian,

Did you mean message strobe block? I've try it and the result is my center frequency from variabel "freq" replaced by new center frequency as massage strobe set but not automatically.
I also tried usrp_spectrum_sense.py and its absolutely works. Now i confused how to adapt the python scipt from usrp_spectrum_sense.py to python script that grc generate because the structure are different at all. Would you mind to help me, please? I haven't basic on gnuradio. Thankyou so much.

Best Regards,

Sinta.

On Tue, Jun 13, 2017 at 3:35 AM, Julian Arnold <address@hidden> wrote:

Hey Sinta,

> Should i edit the python that grc generate?
Exactly!
You can find the example Sumit mentioned under
gnuradio/gr-uhd/examples/python/.
Either use this directly or copy over the required functionality to your
flowgraph.
However, it should be mentioned that this functionality could also be
achieved using messages
which makes it much easier to setup from within GRC.

Cheers,

On 06/13/2017 01:21 AM, Sinta Novtafiani wrote:
> How can i get that?
> I using gnuradio companion to create a receiver. How to syncronize the
> flowgraph and the python? Should i edit the python that grc generate?
>
> On Jun 12, 2017 6:13 PM, "Sumit Kumar" <address@hidden
> <mailto:address@hiddeniiit.ac.in>> wrote:
>
>     try using usrp_spectrum_sense.py
>     its very near to what you want.
>
>     On Mon, Jun 12, 2017 at 8:41 AM, Sinta Novtafiani
>     <address@hidden <mailto:address@hidden>> wrote:
>
>         Hi all,
>
>         I'm on reseaching receiver radio frequency using USRP B200. I
>         want to sweep
>         center frequency in rx usrp over 45-870 MHz. I want it running
>         just like
>         slider on QT and WX slider. Is it possible to make it running
>         automatically?
>
>         Best Regards,
>         Sinta.
>
>
>
>
>
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--
Julian Arnold, M.Sc.

Institute for Networked Systems
RWTH Aachen University

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