Revision as of 02:16, 16 November 2018 edit Wbm1058 (talk \| contribs) Autopatrolled, Administrators 278,591 edits m sp.: International Civil Aviation Organization, per MOS:CONSISTENCY, proper names use the subject's own spelling (via WP:JWB) ← Previous edit		Revision as of 23:56, 30 September 2022 edit undo Stephan Leeds (talk \| contribs) Extended confirmed users, IP block exemptions 35,968 edits →Method: zero is zero (“zero percent (0%)” adds nothing) Next edit →
Line 5: A [[Carrier wave\|carrier]] and [[sideband]] (CSB), and [[Double-sideband suppressed-carrier transmission\|sideband only]] (SBO) signal, transmitted from [[localizer]] and [[glidepath]] antennas produce a space-modulated signal resulting from the vectorial addition of two or more audio signals that vary according to position of the receiving aircraft. The difference between the two modulation depths produce an error current signal in the airborne receiver. When an aircraft follows the course line, the difference between the two frequencies is zero ~~percent (0%)~~. This difference is traditionally displayed by the deflection of a moving coil indicator or needle/s on an instrument known as a [[horizontal situation indicator]], HSI.

Difference in the depth of modulation: Difference between revisions