For Standard receivers: If you have the transmitter set to alarm at any loss of receiver, it will blank out the main screen display.. This is why we stagger the setup now
As said in another post, Set the transmitter to alarm at signal level 3, Set the wireless mode to alarm at the loss of the primary receiver only, since the system uses it all the time if its valid..
Central box setup.. you have to set that to loss of any receiver and live with the loss of display.. but the data is in the logger..
The reason is that both receivers are treated as equals, and there is no Port alarm on thru the other receiver, or an alarm if it can't talk to the xbox, if the primary is talking to it..