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kpreid / shinysdr

Software-defined radio receiver application built on GNU Radio with a web-based UI and plugins. In development, usable but incomplete. Compatible with RTL-SDR.
https://shinysdr.switchb.org/
GNU General Public License v3.0
1.08k stars 115 forks source link

It's not possible to save DC cancellation state for soapy device #97

Closed vpoluyaktov closed 7 years ago

vpoluyaktov commented 7 years ago

I use SDRPlay2 device as: config.devices.add(u'osmo', OsmoSDRDevice('soapy', name='SDRPlay2'))

Found a problem with saving a state of DC cancellation checkbox on Radio Config widget. By default DC cancelation is off and i see high peak in center frequency.

When I click on the check box I can see how DC cancellation is turned On from the log: INFO:shinysdr:set /XXXXXXXXXXXXXXX/radio/sources/osmo/rx_driver/dc_cancel to True (0.00s)

Also the high peak in center frequency disappears. But DC cancellation checkbox returns to unchecked state immediately after the click.

I believe that _set_dc_offsetmode(mode, ch) always returns False in my case (not sure about other devices).

As result of this DC cancellation checkbox state is always false: _self.dc_state = self.__source.set_dc_offsetmode(mode, ch) although DC cancellation mode switch is working.

kpreid commented 7 years ago

Thanks for finding this. IQ balance handling was also wrong in the same way.

vpoluyaktov commented 7 years ago

Thank you for quick fix!