first off I'm a bit of a newb with modern scanners I recently had to upgrade my 30+ year old bearcat because my local EMS finally upgraded to a digital system. So I got the Whistler ws1065. I programed it using RadioReference and ARC500 software (Dukes county MA is my location). So I can get it to scan, but it doesn't stop on any of the frequencies. I know there is traffic on those frequencies by listening on a scanner app on my phone. Adjusting the squelch seems to make no difference with the squelch all the way down I see the S symbol on the display for squelch, but I would think it would stop on a frequency and just be static but it does neither. The weather channel does work, so it does receive some stuff. one of the frequencies I programed was marine VHF channel 73 which is 156.675MHz we use this channel as our working channel at the boat yard I work at. So I did verify that the scanner does stop on that frequency when I key the mic on my handheld marine VHF radio. So it only seems to be the EMS frequencies that I downloaded that don't work. I don't know if I did something wrong, or I just got a lemon unit, which I"m learning is not uncommon with this unit. any help appreciated