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Ive seen this. This is why im asking! So the 128 is for passport and LTR only?
I have added to other info
R = UHF1 (403-470)
K = 25-40Watts
F = 1 line display, standard keypad
9 = Programmable
DP = Passport and LTR
DU=LTR only
AN= Conventional only
2 = 64 modes
5 = 128 modes
6 = 160 modes
All have 16 zones and 16 scan lists
For a 128 model conventional you want an AAM25RKF9AA5AN, for a fully blown out radio you want an AAM25RKF9DP6AN model. You can put a Passport firmware in a radio without the board. When I find them I actually remove the board.
Since it is no longer a supported radio if you search around (even on this site) for the information to find the location on the net for the Lab version of the software (V3.01 I think was the last) and make the radio anything you want. Just be careful to load only the same version AN,BN,CN,or DN firmware, or you could brick the radio. You will also need Depot to change the serial number, but before you do anything read and save tuning info. You have an AN so you need to use a AN firmware.
There are tens of firmware versions contained in the software package, some with lots of channels but no DTMF or MDC on conventional. You may have to try a few to get what you want in the end. AN6 is conventional 160 mode with MDC only, and I personally use the DP6 which is basically everything.