I am beach detecting with with my spectra and wondering if my spectra is broken it is falsing a lot the rx gain is at 7 and still it is falsing , sometmes it gives me a signal and sometimes it doesnt I have traced the same steps with my quattro and got alot of hits it was the same area that I used the spectra do u think the spectra is broken? i know the quattro has the fsb 26 fequency but the spectra is so much more advanced then the quattro