Re: QT GUI Sink "Clicked freq variable" does not work

2019-11-26 Thread Ron Economos
It works here with the QT Frequency Sink. You have to double click. Here's the test flow graph. http://www.w6rz.net/freqselect.grc Ron On 11/26/19 15:36, Jim Larsen wrote: I am working on a receiver panadapter application. I would like to use the QT GUI Sink Clicked freq variable parameter

QT GUI Sink "Clicked freq variable" does not work

2019-11-26 Thread Jim Larsen
I am working on a receiver panadapter application. I would like to use the QT GUI Sink Clicked freq variable parameter to control the receiver local oscillator to recenter the spectrum. I tried a simple test flow graph using GNU Radio version 3.7.13. When I click on the GUI Sink spectrum, the

Re: Signal Tracking

2019-11-26 Thread CEL
Hi Sarandis, you can change the center frequency of the osmocom source by calling the appropriate setter function. In GRC, that is automatically done when you change the variable that you used there, for example with a slider. Now, you seem to want to do that automatically: just write a bit of

Re: Signal Tracking

2019-11-26 Thread Chris Kuethe
One way you could do this is with a signal generator - proabably a slowly increasing ramp signal - which you sample with a probe block, and then the value of the probe block is used to retune the hardware. Not at my GR machine right now otherwise I'd attach a flowgraph to show how to do this. I'm

Signal Tracking

2019-11-26 Thread sarandis. Doulgeris
Hi. Is there a way to change the center frequency of osmocom source, having the video bandwidth steady, automatically at a given rate istead of a range variable?

Re: TCP/QT FREQ SINK Problems

2019-11-26 Thread rear1019
On Wed, 20 Nov 2019 at 07:39:04 -0500, Antoine Nguyen wrote: > […] > Is there a setting I am missing or a step that I have not included > that is causing this issue? It looks like you used numpy and matplotlib to generate tcp.sink.PNG and filesink.PNG. A possible issue might be that the