I recently received my GMC-300. Set up the standard data view software and can see the CPM count in real time. Tok me a couple of tries to get that working but so far so good.
The issue Is I downloaded the PRO version of the logger software and I am attempting to register it and use it with my detector. So far I can get it to communicate via USB with the PC but the registration seems to be flawed. I looked on my unit and found the serial number. 0300 followed by some other digits and letters. I plug them in but the register button is ignored and the page does nothing? I tried with an incorrect serial number earlier (used the bar-code number off the back of the unit!). Is it possible it thinks I registered with that odd number? How do I un-register and try over?