Annex-B-1
Annex B
OPTION 006 AVIONICS
CONTENTS
GENERAL DESCRIPTION.......................................................................................... B-3
ILS mode............................................................................................................ B-3
Marker beacon mode.......................................................................................... B-3
VOR mode ......................................................................................................... B-3
ADF mode.......................................................................................................... B-3
SEL-CAL mode ................................................................................................. B-3
PERFORMANCE DATA.............................................................................................. B-4
AVIONICS OPERATION............................................................................................. B-6
ILS mode............................................................................................................ B-7
DDM control...................................................................................................... B-8
Localiser/glideslope frequency conversion .......................................................B-9
Tone suppression ............................................................................................. B-10
Communication channel testing....................................................................... B-10
Tone phase variability......................................................................................B-11
Marker beacon mode........................................................................................ B-11
VOR mode ....................................................................................................... B-12
Sub-carrier peak deviation............................................................................... B-12
Identity channel................................................................................................ B-15
ADF mode........................................................................................................ B-15
SEL-CAL mode ............................................................................................... B-16
Rotary control .................................................................................................. B-18
GPIB OPERATION..................................................................................................... B-19
ILS (Instrument Landing System) mode.......................................................... B-20
Marker beacon mode........................................................................................ B-23
VOR (VHF Omnidirectional Radio Range) mode........................................... B-24
ADF (Automatic Direction Finder) mode........................................................B-27
Sel-cal mode..................................................................................................... B-27
ACCEPTANCE TESTING.......................................................................................... B-28
Introduction......................................................................................................B-28
Test equipment................................................................................................. B-28
Functional testing of ILS waveform generation .............................................. B-29
Accuracy of SDM (Sum Depth of Modulation) signal path............................ B-33
Accuracy of DDM (Difference Depth of Modulation) waveform................... B-34
VOR waveform depth accuracy....................................................................... B-36
VOR waveform test ......................................................................................... B-37
Waveform phase control.................................................................................. B-38
LIST OF FIGURES
Fig. B-1 Utilities selection menu 1............................................................................. B-6
Fig. B-2 Modulation mode selection menu.................................................................B-6
Fig. B-3 Avionics mode selection menu.....................................................................B-7
Fig. B-4 SDM selection menu .................................................................................... B-7
Fig. B-5 DDM selection menu.................................................................................... B-8
Fig. B-6 DDM selection menu with presets ...............................................................B-9
Fig. B-7 Tone suppression menu.............................................................................. B-10
Fig. B-8 Ident/Comms selected.................................................................................B-10
Fig. B-9 ILS variable phase sub-menu ..................................................................... B-11
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