Keysight EXG and MXG X-Series Signal Generators User’s Guide 373
Using Avionics VOR/ILS Softkeys for N5171B/72B and N5181B/82B with Option 302
Using ILS Localizer Softkeys
Example of Setting All ILS Localizer Parameters
1. Press Preset to place the signal generator in a known preset state.
2. Set the ILS Localizer carrier frequency.
a. Press Aux Fctn > Avionics > ILS Localizer
b. Press Carrier Freq Index
(Default <value> is 1 and corresponds to 108.10 MHz
carrier frequency.)
c. (Optional) Select a <value> from 1 to 40 and press Enter
to change to a different carrier frequency.
3. Set the ILS Localizer left frequency.
a. Press Left/Right
b. Press Left Frequency
(Default <value> is 90 Hz.)
c. (Optional) Select a <value> from 0 Hz to 6 MHz.
4. Set the ILS Localizer right frequency.
a. Press Right Frequency
(Default <value> is 150 Hz.)
b. (Optional) Select a <value> from 0 Hz to 10 MHz.
5. Set the ILS Localizer phase of the right signal relative to the left.
a. Press Left/Right Phase
(Default <value> is 0.00 deg.)
b. (Optional) Select a <value> from 0.00 deg - 360 deg and press Enter.
6. Set the ILS Localizer DDM polarity to fly left or fly right.
a. Press Return
b. Press DDM/SDM
c. Press Fly Left | Right
(Default selection is Left.)
d. (Optional) Select either Left | Right
7. Set the ILS Localizer DDM value.
a. Press DDM
(Default <value> is 0.0000)
b. (Optional) Select a <value> from -0.99 to 0.99 and press Enter.
8. Set the ILS Localizer SDM value.
a. Press SDM
(Default <value> is 40.00%.)