Change center freq of usrp_source block automatically in incremental way

Hi
I want to make block diagram in grc such that the center freq of
usrp_source should be automatically changed in incremental way defined
by
min and max boundary. I don’t want to take input from qt-qui slider.
Just like the example of usrp_spectum_sense.py but in grc.
How can I do that?

Thanks
Mitul Vekariya

On Wed, Mar 12, 2014 at 7:26 PM, MITUL VEKARIYA
[email protected] wrote:

Hi
I want to make block diagram in grc such that the center freq of usrp_source
should be automatically changed in incremental way defined by min and max
boundary. I don’t want to take input from qt-qui slider.
Just like the example of usrp_spectum_sense.py but in grc.
How can I do that?

Thanks
Mitul Vekariya

That’s a good question. You can maybe create a variable that’s a
simple Python function to update it’s value (the frequency) after a
timeout.

That reminds me that I wanted to implement a GRC function block so we
can define multi-line functions in a GRC graph, which would be much
more useful for something like this. Never made it from my head to an
implementation, though.

Tom

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