Aeroflex ATB-7300, Руководство по эксплуатации, Страница: 31 / 92

Test Set Operation
Subject to Export Control, see Cover Page for details.
2 - 14
150 Hz wind ow:
Frequency data field: (120Hz to 180Hz)
Displays or sets the setting of the 150 Hz tone Frequency.
MO Du lati on data field: (0 to 99%)
Displays or sets the setting of the 150 Hz tone percent Modulation level. Total
modulation not to exceed 99%.
2.3.4.F Ident Settings Button (ILS LOC Gen GUI)
Previously describe in “Ident Settings Button” on page 2-10.
2.3.5 VOR Gen GUI
VOR operates on a carrier frequency range of 108.0 MHz to 117.95 MHz (with 50 kHz
spacing) and encodes azimuth as the phase relationship of a 30Hz VAR tone and a
30HZ REF tone. The 30 Hz REF tone is modulated on a 9960 Hz subcarrier. T he 30Hz
VAR tone phase angle is user settable thr ough a Bearing data field. The phase angle by
which the 30Hz VAR tone lags the 30HZ RE F t one is equal to the direction in degrees
from the station and is called the "radial." Settings are also provided for modulating a
Morse code identifier.
Fig. 2-19 VOR generator GUI
2.3.5.A Generator Settings Window
Previously described in “Generator Settings Window” on page 2-9.
2.3.5.B Generator Control Window
Previously described in“Generator Control Window” on page 2-9.
2.3.5.C Settings Window
Total MOD data field: (0 to 99%)
Displays or sets the setting of the Total MODulation which includes all tones currently
being output. Changing this value will caus e ALL active tone modulations to be
changed proportionally to their values so that the sum equals the T otal MOD value.