I have a pure DMX 50 and a 60 and I get excellent DAB reception. However I have also purchased a Dennon TU-1800dab and from time to time ( between 1 and 5 hrs) it appears to loose the signal and goes silent. If I retune it then it starts again instantly. Is this a problem with Dennon. If so what other Hifi tuner does not have this problem?