MOTOTRBO Out of Band

Please Note: This is a software CPS codeplug mod. Once this mod is performed, you must use the backup file created for any future editing out of band. any attempt to read the radio via the CPS will automatically restore default values instead of  “incorrect”, out of band frequency entries, and the process will have to be repeated again.

1. Download and install HxD, an excellent free HEX editor: Download Link
2. Launch MOTOTRBO CPS, and read the radio and save the file. Note the band limits (in my example (450.000 – 512.000 MHz) and leave the CPS window open.
3. Launch HxD, Click “Open RAM” and click on “mototrbocps.exe
4. Next, press control+R (or edit > replace)
5. Enter your current band limit (e.g. 450.0000) on the first field .
6. Enter your new, desired band limit (e.g. 420.0000) below.
7. Keep “datatype” at text-string, check the “unicode string” and “all” boxes, and click “Replace All”.
8. Click on “Save” (in the HxD utility).
9. Return to your open CPS program, change a few fields and make sure the changes took affect at the “device information” page (note the new split – 420 – 512 MHz!)
10. Pay attention! the next step is to edit your channels / frequencies AND SAVE THE FILE under a
new, different name. This saved file will now ALWAYS have the modified band split and should be
used from now on instead of reading the codeplug from the radio !
11. PROGRAM THE RADIO, TEST AND ALIGN !

Any attempt to read the radio will result in the deletion of all “out of band” frequencies in the radio. It
will not be bricked, just the information would be lost. Use the saved file to restore the radio if this
happens.

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