all ok.
General the receiver is working. I used DC 12V. No problem to program DOORHAN Replacement remote controls. The problem is with the range . With original antenna (simply cable) included in parcel the distance is max 7m!! After change of antenna to professional one (dedicated for 433.9MH receivers) installed 30m from the unit the range is the same - around 7m form external antenna. This is not acceptable. I back to my old 433.9MHz receiver and it is working <100m. So conclusion: this receiver is working max 7m open space distance even to change to external professional antenna installation .
The problem was not with receiver, but with Remote Control. After change to other RC model all is OK