Northern Airborne Technology THxxx - Manual (Page 88)

Tac/Com Control Head Manual SM06 Rev. 4.10
Depending on which way the SELECT switch is set (+ or -), the choices will move
around the circle in either direction. The editor removes numbers from this circle that
don't apply to the particular cursor position. For example, VHF High Band radios can
only have a 3, 4, 5, 6 or 7 in the 10's of MHz position, so no other numbers are
permitted during editing from the front panel in this location. Some radios do not
channel below 150 MHz, so then the editor removes the 3 and 4, and so on through
each position that can be edited.
When editing the channel ID label or name, the editor opens the circle to include all the
alphanumeric characters, and some frequently used symbols, like the blank (visible as a
flashing underline '_' to show the cursor location), slash (/) and number sign (#). The
choices for selection are shown below:
3.5.1.2
NEXT Switch
NEXT
Switch
This push button switch cycles the editing cursor from left to right to the next character
to edit. The editor will change what choices are valid as the cursor moves from one
character to the next.
Sometimes more than one character will flash. This is because the only valid choices
involve two characters, such as the fractional kHz entry for a channel frequency. This is
also true for tone code entries. The SELECT switch will then scroll through the
available entries from an internal table.
Page 3-12 Jan 4, 2006
ENG-FORM: 806-0106.DOT
CONFIDENTIAL AND PROPRIETARY TO NORTHERN AIRBORNE TECHNOLOGY LTD.