LOCALIZE/GLIDE SLOPE DDM SELECTION AND ADJUSTMENT

TM 11-6625-2975-12

2-4. OPERATING PROCEDURES. (CONT)

EL9LX037

NOTE

The following step adds audio 1020 Hz tone to VOR rf carrier signal.

5. Press 1020 Hz key until it lights.

NOTE

The following step removes 1020 Hz audio tone.

6. Press 1020 Hz key until its lamp goes off.

LOCALIZE/GLIDE SLOPE DDM SELECTION AND ADJUSTMENT

1. Select any standard Iocalizer or glide slope rf carrier frequency, from table 2-11, and enter It

into test set (FREQUENCY/MODE SELECTION, steps 1 through 6, page 2-16).

NOTE

In the steps that follow, it is required to enter STD DDM STEPS into test set. Refer to

table 2-12 for these values.

TABLE 2-12. STANDARD DDM STEPS

STD DDM STEPS

MODE

STD DDM STEPS

MODE

Glide slope

Localizer

0.000

+ 0.046

+ 0.045

+ 0.093

+ 0.091

+ 0.155

+ 0.175

+ 0.200

+ 0.400

2-30