How the space modulation of the localizer transmission of the ILS is accomplished, using the CSB (Carrier & Sidebands) and SBO (Sidebands only) technique. Includes sum & difference technique, some information about DSBSC signals and relevant antenna theory and application, in particular broadside antennas fed in antiphase. Note: Subtitles added in English (UK)
Contents:
00:00 Introduction
00:46 Conceptual model of ILS localizer
03:06 Course signal
04:25 CSB/SBO technique
05:41 Sum & difference technique
07:45 ILS transmitter
10:31 DSBSC signals
14:51 Antenna techniques
16:20 Hybrid splitter
18:45 Phase relationship between antennas
21:49 Practical ILS antennas
24:10 Sidelobes & clearance signal
26:09 Nav receiver passband
26:55 Course width
30:01 Major drawback of CSB/SBO
31:05 Final comments