According to the documents on simulcast EDACS systems, all the repeaters should now be GPS disciplined and accurate to their FCC assigned frequencies to a tolerance of just 1 Hz.
But, using the FCC menu feature in my M5300 mobile radio, on the frequency error screen, I'm seeing that the radio is reading the various system repeater channels as being all over the place, from within 40 Hz to more than 250 Hz off frequency. Relative to my radio, that is.
My radio is probably due for a tune-up, but the point is, if all the system repeaters should now be dead on their assigned frequencies, then the frequency error that my radio shows should be consistent regardless of channel number.
I wonder what's up with that.
And I wonder if it might have anything to do with the fact that my radio has become a bit erratic about decoding PV transmissions. Some decode, others don't. And it's the radio, because another radio may decode one my mobile will miss.
I think I need to deprogram my radio, leave in just a conventional test channel, send it in and get it realigned, and then reprogram it and see how it works after alignment.