Sounds like you missed one teensy little step in the process:
- Press the middle Set button to enter the menu system,
- Turn the dial to TONE M,
- Press in on the dial to bring up the current Tone Mode,
- Turn the dial to get to the Mode selection you want (ENC),
-
Press in on the dial to enter what you just selected (I think you may have missed this step?) - the display returns to TONE M.
- Now press Set to exit back to normal operation.
See pg 29 in the Operating Manual for details.
If you're doing this on a memory channel, the tone mode change is temporary. If you change channels and come back to this channel, or if you turn the radio off and back on, the previous memorized setting will come back. To keep the desired tone mode setting, re-write the channel with the desired tone mode setting into that memory channel. See pg 32 in the manual for memory writing.
Let me know if you need further help. I have an '8900 and the manual right here. Or, call me on 10M FM??
73, David, N6HHR