Just because the frequency is 463.6 doesn't mean it is 25 KHz. You can have frequencies on 463.575, 463.5875, 463.6, 463.6125, and 463.625. By law, UHF frequencies are now required to be narrowband (12.5 KHz). Additional frequencies were added between the existing 25 KHz spaced frequencies.
Go into the scanners menu and change the band defaults to 6,25Khz steps and then when monitoring the 463.600Mhz frequency you can set the squelch to 0 and tune 5 steps either up or down and then go one step at a time towards 463.600 until it starts to decode the DMR. Then do the same from the other direction and note the frequency when it starts to decode. The middle of the two frequencies when it starts to decode are the proper one.
You can also make a hold on the 463.600 and then do Fn+3, to start the bandscope and it should probably indicate if you are in the middle of the signal. Then tune to 463.60625 and start bandscope again and compare. Do the same with 462.59375
