I have motorized screen including remote controller that seems to work in 433.92Mhz band (printed on label). Reference is HRC-101

domoticz+RFlink does not detect any radio frame when I press the remote control. (I checked my rflink setup with Chacon remote and it does work).
There is nothing displayed in event log. Is that normal ? what's the best way to try with unrecognised device ? domoticz ? Or others ?
How can I detect the radio signal with RFLink ? after to share with RFLink team if new plugin can be prepared.
Thank you