Batboard

I have done this before for VHF and UHF but I am sitting here staring at the hex editor and drawing a blank.
I need to hex edit the Astro 25 CPS R20.01.00 for 900MHz amateur frequencies.
Does anyone know what the band edges are?? I can find say 450mhz ($80-74-D2-1A) for example but not 940-935-896 etc.

Sneaky SOBs the RX lower limit was 935.0125, put in 925.000 so all is good now.

Nothing sneaky about it, just read tthe FCC Rules. That's receive for the lowest FCC-allowed operating channel in the 900 MHz trunking band. The ISM band is 902 to 928.