Dx-ar-8108 Radio User Manual -

Press and hold the seek buttons to enter manual tuning mode.

The manual dedicates several pages to Continuous Tone-Coded Squelch System (CTCSS) and Digitally Coded Squelch (DCS). These are not scramblers or encryption; they filter out other users. Dx-ar-8108 Radio User Manual

: Press and hold the seek buttons to enter manual tuning mode. Press and hold the seek buttons to enter manual tuning mode