My son gave me one of these as a spare. I booted it up only to get the message no sats being received. Looking at signal and sat selected it showed 12.207 V 27.5 2.3 this i have allways used. Reselected this frequncy but the same result.
I then input 11.778 V 27.5 2/3 and all worked fine. Any ideas why it should have locked on 12.207 and not searched for another?