I have a Royal SRS with 02 receivers JR DMSS RG812BX, every time I power up the Royal it shows 1 hold, some antenna fades and lost frames despite the distance from the transmitter (JR28X) is less than 1 meter. I updated to the new version of the royal (19.3) but it disn’t fix this problem. When I plug only one receiver everything works great. I replaced the 02 receivers but it shows the same failure.
I have 02 others Royal SRS that work perfect with DMSS.