I am attempting to scan a DMR Motorola Capacity Plus Multi Site (TRBO) on an SDS200. The control channel keeps fading in and out. I will go from having an RSSI of -70 and full signal bars to an RSSI over -100 and no signal bars. I do not seem to be missing any parts of the conversation, however. Can anyone comment on why this may be happening? This is the first system of this type that I have ever tried to monitor. Do these control channels always act in this manner? I am used to a P25 system where the control channel gives off a constant signal. This is the system.