I have an RD218 raydome and need to unplug the cable, put some dielectric grease in, and reseat the plug. I sent someone up the mast and they could unscrew it (it’s like a cannon plug) but could not separate the connection from the radome. He said he did not want to pull too hard on it. So I’m curious, is there some type of clip or locking ring that has to be removed to get the pug off the dome?