Originally Posted by a23051coug
Yes I have tried 700/800mhz with same results. Could it be a scanner issue that needs to be sent in.
You may be correct that it needs to be sent in to be fixed but it might help if you could try a different USB cable to try out and use a different USB port on your computer just in case it is not the radio.
Although I sure do not see how this would affect reception unless something is wrong with the radio. My 436HP works just fine with the USB plugged into an AC adapter, computer, or car DC adapter.