I have a LimeSDR mini v1.1 and I have a reception problem with welle.io (DAB+ receiver software). First I get the audio signal for some minutes and then I lose it (lost lock). The chips on the board also get very hot. At the same location with a HackRF I receive the same radio station without losing the lock. What do I wrong, do I have to set something or has my device a HW problem?