Editing Direction finding (section)

=== 21st century ===
The various procedures for radio direction finding to determine position at [[ocean|sea]] are no longer part of the maritime safety system [[GMDSS]], which has been in force since 1999. The striking cross frame antenna with attached auxiliary antenna can only be found on the signal masts of some older ships because they do not interfere there and dismantling would be too expensive.

Modern positioning methods such as GPS, DGPS, radar and the now-outdated Loran C have radio direction finding methods that are imprecise for today's needs.

Radio direction finding networks also no longer exist.<ref>{{Cite web |title=Die Geschichte des Funkpeilens |url=http://www.seefunknetz.de/peilen.htm |access-date=2023-08-11 |website=www.seefunknetz.de}}</ref>  However rescue vessels, such as [[RNLI]] lifeboats in the UK, and Search and Rescue helicopters have direction finding receivers for marine VHF  signals and the 121.5&nbsp;MHz homing signals incorporated in [[EPIRB]] and PLB beacons, although modern GPS-EPIRBS and AIS beacons are slowly making these redundant.