OK
If you have all six frequencies (not just the control channels) programmed, then a change in control channel frequency should not be your problem.
Have you tried writing the information from Win500 down to your scanner again? I'm wondering if, perhaps, you accidentally hit a key when scanning, and turned off scanlist without realizing it. That's happened to just about all of us at one time or another. You might also make sure that the wildcard is active for that system, just in case one or more talkgroups changed (but not yet submitted to the database).
Since you can hear traffic if holding on one of the frequencies, that pretty much rules out a defect in your antenna, or in the receiver of the scanner. If re-writing to the scanner does not make a difference, then you might post your programming file just to see if anyone spots something out of place. (If you have not changed your programming since it quit working, that's not likely the issue, but never hurts to look.)
[FONT="]Note: To upload an *.P500 file, to the Forums, you must change the file extension to one acceptable per forum requirements. To do that, note where your *.P500 file is saved on your PC.
Using Windows Explorer, find the file.
There are two ways to do this. You can either change the file extension itself, or compress the file using
7-Zip or other file utility. The *.zip file extension can be attached to a post and uploaded to the Forums.
Or, using Windows Explorer, rename your file one of these two ways:
For illustration, let's call your exported file '
MyFile.P500' (without the quotes).
<Right><Click> on the file & choose Rename from the pop-up menu.
You can then rename your file to
MyFile.txt, or
MyFile.P500.txt in order to attach it to a post. Whoever views the file will need to reset the file name back to
MyFile.P500, then it can be imported into Win500 for viewing.[/FONT]