9 - AUX PAGES172COM Configuration— allows you to select 8.33kHz or 25.0 kHz COM frequency channel spacing.NOTE: 8.33 kHz VHF communication frequencychannel spacing is not approved for use in theUnited States. Select the 25.0 kHz channel spac-ing option.DisplayTo change the backlighting intensity:1. Select “Display” from the Setup 2 page.2. The flashing cursor highlights the backlightmode field. Turn the small right knob to selectthe desired mode: Auto or Manual. Press ENTto accept the selection.3. If “Manual” is selected, the flashing cursormoves to the backlight level field. Turn thesmall right knob to select the desired level.Press ENT to accept the selection.To change the display contrast:1. Select “Display” from the Setup 2 page.2. Turn the large right knob to highlight thecontrast mode field.3. Turn the small right knob to select the desiredmode: Auto or Manual. Press ENT to acceptthe selection.4. If “Manual” is selected, the flashing cursormoves to the contrast level field. Turn the smallright knob to select the desired level. PressENT to accept the selection.Nearest Airport CriteriaTo set the minimum runway length and runwaysurface:1. Select “Nearest Airport Criteria” from the Setup2 page.2. The flashing cursor highlights the runway sur-face field. Turn the small right knob to selectthe desired surface. The following options areavailable:• Any surface• Hard surfaces only• Hard / Soft surfaces• Water landings only3. Press ENT to accept the runway surface selec-tion.Setup 2
