Hi,
My super reliable RTL515 has been perfect, right up until my son bought one as well. Now when we ride together we both experience disconnection errors. If either of us turns off our own RTL515 then the issues ceases, when we have them both running again, the issues continue. So there is obviously some interference issue, is there a way to change channels or frequency of one of the units to prevent this occuring? I've checked the manual and there is nothing mentioned about interference solutions.
Thanks,
Pete