User's Guide

Controls & indicators
Your radio has a number of controls and indicators.
Navi-knob
The Navi-knob is a continuous rotating knob that in its normal mode is used to adjust the volume. The
Navi-knob can also be used to perform various other functions.
To do this… Do this…
Adjust loud speaker volume (or
enable/disable Whisper Mode
[customisable])
Rotate Navi-knob
Move cursor and select characters (in text
entry mode)
Rotate Navi-knob in Text Entry Mode
or Editing Mode
Scroll through available talkgroups
From the Home screen, press
Groups + rotate the Navi-knob
Scroll through available Status Messages
From the Home screen, press
Groups 2 times + rotate the Navi-
knob
Scroll through available User Profiles
From the Home screen, press
Groups 3 times + rotate the Navi-
knob
Navigation Keys
Your radio has four navigation keys (left/right/up/down).
Key Action
Up/Down
Use to move the scroll bar up and down to see more information.
Scroll a list of options.
To independently adjust the volume of accessories. See Independent
volume control feature on page1.
Down Open the top level menu from the Home screen.
Up Repeated presses moves upwards through the options and menu levels until
the top level menu is reached.
Left/Right
Moves between options on the top level menu.
Moves through the text characters for selection when writing.
8 SC21 Series hand-portable radio