gstreamer relevant.. same error in version 0.10 and 1.0:
$ gst-launch-0.10 dvbsrc modulation="QAM 256" symbol-rate=6900000 frequency=330000000 Setting pipeline to PAUSED ...
** (gst-launch-0.10:3166): WARNING **: Error tuning channel: Invalid argument
$ gst-launch-1.0 dvbsrc modulation="QAM 256" symbol-rate=6900000 frequency=330000000 Setting pipeline to PAUSED ...
** (gst-launch-1.0:3170): WARNING **: Error tuning channel: Invalid argument
gstreamer relevant.. same error in version 0.10 and 1.0:
$ gst-launch-0.10 dvbsrc modulation="QAM 256" symbol-rate=6900000 frequency=330000000
Setting pipeline to PAUSED ...
** (gst-launch- 0.10:3166) : WARNING **: Error tuning channel: Invalid argument
$ gst-launch-1.0 dvbsrc modulation="QAM 256" symbol-rate=6900000 frequency=330000000
Setting pipeline to PAUSED ...
** (gst-launch- 1.0:3170) : WARNING **: Error tuning channel: Invalid argument