this program is working on linux which name is gnu radio.. but you can find an emulator for microsoft. but i cant give a quarantee for working on microsoft. i think; you must work on linux for GNU radio
This is nice, thank you. What screen resolution did you capture this at?
I ask because I could not find a way to get the Frequency display to "fit" into the display, to read the Frequency scale at the bottom. Also, although I can scroll the display by using right mouse clicks, I cannot get it to stay, so I cannot see the waveform down around -80dB. I was able to reduce font size in the qt setup panel but it didn't affect the display. Nothing in the docs about initializing it with size params.
@whyteks I captured at HD resolution 1280x720. I have modified the Freq Display plot to fit on laptop screen. As you noticed, it is a problem that the default qtgui-sink requires more than 800 pixels vertically. You can modify it by changing the .ui file then recompile.
@oz9aec Thank you Alexandru, I had tried hacking on it with qt designer, but without any success. I seem to have the "Window" drop-down selector below the "Display RF Frequencies" checkbox, where it is consuming lot of extra screen space, and it seems this is part of the qtgui-sink and cannot be changed with the .ui file Maybe it's a qtgui version difference. Anyway, so far I have been unable to get it to fit into the laptop display. Could you post your .ui file as a learing exercise for me?
@whyteks The modifications are already posted but they may be out of date with respect to current gr-qtgui. See the wiki page at the link included in the video description.
@ladams00 It would be quite easy. Open loop Doppler tuning (where you calculate the Doppler shift) can be added using something like Pyephem. For FM sats one could even implement closed loop tuning by tracking the downlink carrier. The tuning itself is also very easy: simply move the center of the first filter - this is indeed what the long slider controls.
what program is this? i can't find it. thx
skthrdieyng 9 months ago
@skthrdieyng maybe check the description?
oz9aec 9 months ago
Comment removed
devcplusplustr 6 months ago
this program is working on linux which name is gnu radio.. but you can find an emulator for microsoft. but i cant give a quarantee for working on microsoft. i think; you must work on linux for GNU radio
devcplusplustr 6 months ago
This is nice, thank you. What screen resolution did you capture this at?
I ask because I could not find a way to get the Frequency display to "fit" into the display, to read the Frequency scale at the bottom. Also, although I can scroll the display by using right mouse clicks, I cannot get it to stay, so I cannot see the waveform down around -80dB. I was able to reduce font size in the qt setup panel but it didn't affect the display. Nothing in the docs about initializing it with size params.
whyteks 9 months ago
@whyteks I captured at HD resolution 1280x720. I have modified the Freq Display plot to fit on laptop screen. As you noticed, it is a problem that the default qtgui-sink requires more than 800 pixels vertically. You can modify it by changing the .ui file then recompile.
oz9aec 9 months ago
@oz9aec Thank you Alexandru, I had tried hacking on it with qt designer, but without any success. I seem to have the "Window" drop-down selector below the "Display RF Frequencies" checkbox, where it is consuming lot of extra screen space, and it seems this is part of the qtgui-sink and cannot be changed with the .ui file Maybe it's a qtgui version difference. Anyway, so far I have been unable to get it to fit into the laptop display. Could you post your .ui file as a learing exercise for me?
whyteks 9 months ago
@whyteks The modifications are already posted but they may be out of date with respect to current gr-qtgui. See the wiki page at the link included in the video description.
oz9aec 9 months ago
@oz9aec Ah, I was trying to do it by only changing the gqrx_qtgui.ui. Now I understand. Thanks Alex.
whyteks 8 months ago
Nice receiver Alexandru, how difficult would it be to implement a routine to adjust for doppler shift automatically?
ladams00 1 year ago
@ladams00 It would be quite easy. Open loop Doppler tuning (where you calculate the Doppler shift) can be added using something like Pyephem. For FM sats one could even implement closed loop tuning by tracking the downlink carrier. The tuning itself is also very easy: simply move the center of the first filter - this is indeed what the long slider controls.
oz9aec 1 year ago