Tone scanning probably doesn't work as the manual instructs on your unit.
Here's a work-around:
NOTE: You cannot save channel settings while in Channel Mode. You MUST use VFO (Frequency) Mode to manually enter the frequency you want to modify, modify the settings, save it, and then transfer it to a channel afterward.
1. In VFO mode, select your desired frequency.
2. Press Menu > 1-1 for CTCSS tones or 1-0 for DCS tones.
3. Press Menu again to enter edit mode.
4. Press the *Scan button.
5. If the setting reads 'OFF', you need to change it to an actual frequency.
6. After changing to a frequency, press Menu to save the setting once. You will probably have now silenced the current receiving channel.
7. Press the Exit button to exit the Menu.
8. Press Menu > 1-1 for CTCSS tones or 1-0 for DCS tones.
9. Press Menu again to enter edit mode.
10. Press *Scan - you should see "CTS" or "DCS" flashing on the left side of the display. Leave it here.
At this point you will NOT see the frequencies scanning unless there is an active received transmission. While you are receiving a transmission, scanning will activate and stop on a detected CTCSS or DCS frequency, if one is detected. At that time you should press the Menu button to save the setting.
Here's a work-around:
NOTE: You cannot save channel settings while in Channel Mode. You MUST use VFO (Frequency) Mode to manually enter the frequency you want to modify, modify the settings, save it, and then transfer it to a channel afterward.
1. In VFO mode, select your desired frequency.
2. Press Menu > 1-1 for CTCSS tones or 1-0 for DCS tones.
3. Press Menu again to enter edit mode.
4. Press the *Scan button.
5. If the setting reads 'OFF', you need to change it to an actual frequency.
6. After changing to a frequency, press Menu to save the setting once. You will probably have now silenced the current receiving channel.
7. Press the Exit button to exit the Menu.
8. Press Menu > 1-1 for CTCSS tones or 1-0 for DCS tones.
9. Press Menu again to enter edit mode.
10. Press *Scan - you should see "CTS" or "DCS" flashing on the left side of the display. Leave it here.
At this point you will NOT see the frequencies scanning unless there is an active received transmission. While you are receiving a transmission, scanning will activate and stop on a detected CTCSS or DCS frequency, if one is detected. At that time you should press the Menu button to save the setting.