Viavi AVX-10K Operation Manual page 151

Chapter 6 Navigation
Instrument Landing System (ILS) Operation
90 / 150 Hz PHAZE
Autopilot Test button: This will allow selection between Localizer Only, Glide Slope Only,
and Localizer and Glide Slope control and with toggle the Autopilot test feature on or off.
The Autopilot feature continuously changes the associated μA (or DDM) in a predefined
pattern. When enabled, you can change the LOC and GS AUTOPILOT MAX DEV
settings.
Revert To Normal button: If any parameters have been changed and the indicators show
"UNCAL", pressing this button will "zero" all parameters back to their normal state.
Center Deviation button: This sets the LOC and G/S offsets to zero.
Rev 004
6 - 10
Table 6-3 ILS TRI Mode Settings (Continued)
Setting
G/S DEV
M MOD
TONE DELETE
AVX-10K Operation Manual
The UP/DOWN Arrow keys will cycle through seven DDM/ μA
deviation steps: 0.400/343 DOWN; 0.175/150 DOWN; 0.091/78
DOWN; 0/0 CENTER; 0.091/78 UP; 0.175/150 UP; 0.400/343
UP. Once you reach a value at the extreme, the Arrow key will
change from blue to gray in color. Also – the Glide Slope can be
modified by selecting the horizontal bar on the display and
moving it to the desired location. If DEV STEP is set to FIXED,
the bar will snap to the nearest value.
Opens a window with slider controls to allow adjustment of the
Master Modulation Depth in 2% offsets for related enabled
instruments. The Master Modulation control functions as a
multiplier of the individual modulation components. The Master
Modulation Depth is the sum of the Depths of Modulation (SDM)
of the individual tone components.
Opens a window to allow the 90 Hz, 150 Hz, or both to be
deleted for the related enabled Instruments.
Only for Localizer or Glide Slope instruments. Select between
10, 15, 20, 25, and 30 degrees. This control changes the phase
relationship between the 90 and 150 Hz modulation tones to
simulate an aircraft in a turn.
Definition
22135254
January 2024