Editing Instrument landing system (section)

=== Compass locator ===
Compass locators are low-powered (less than 25 W) non-directional beacons and are received and indicated by the [[automatic direction finder]] receiver. It ranges over 15 miles and operate between 190 and 535 kHz. When used in conjunction with an ILS front course, the compass locator facilities are collocated with the outer and/or middle marker facilities and can be used to substitute an outer marker, in which case it will transmit at 400 W. The coding identification of the outer locator consists of the first two letters of the three-letter identifier of the associated localizer. <ref name="IFH">{{cite book |title=Instrument Flying Handbook |date=2012 |publisher=[[Federal Aviation Administration]] Flight Standards Service  |edition=FAA-H-8083-15B |url=https://www.faa.gov/sites/faa.gov/files/regulations_policies/handbooks_manuals/aviation/FAA-H-8083-15B.pdf |chapter=Chapter 9. Navigation Systems |pages=38}} {{PD-notice}}</ref><ref>{{cite web |title=ENR 4.1 Navigation Aids - En Route |url=https://www.faa.gov/air_traffic/publications/atpubs/aip_html/part2_enr_section_4.1.html |website=[[Aeronautical Information Publication]] |publisher=[[Federal Aviation Administration]] |access-date=12 January 2025}}</ref>