Jump to content

File:Radio beacon of distress on 121,5 MHz.ogg

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Radio_beacon_of_distress_on_121,5_MHz.ogg (Ogg Vorbis sound file, length 8.2 s, 23 kbps, file size: 23 KB)

Summary

Description
Français : Émetteur : Modulation de balise radio de détresse sur 121,5 MHz (et sur 243 MHz)
English: Transmitter Modulation of radio beacon of distress on 121,5 MHz (243 MHz)
Date
Source Own work
Author F1jmm

Descriptions

English: The radio beacons of localization of disasters (RLS) EPIRB emit on band 406 to 406,1 MHz and 121,500 MHz with an endurance of 100 H with +20°C and an endurance of 40 H with -40°C.

A radio beacon has a power ranging between 0,02 W and 0,35 W out of 121,500 MHz. The Amplitude modulation emitted on this frequency corresponds to a sweeping of more than 700 Hz between 300 Hz and 1 600 Hz. The emission on frequencies 121,500 MHz, (243,000 MHz military version), requires a radiogoniometric location by the teams of research on the ground.

a radio beacon has a power ranging between 3 W and 7 W on tape 406 to 406,1 digital MHz in transmission coded of the one 440 ms duration MMSI all the 50 s for indication and the répérage by Cospas-Sarsat satellite
Français : Les radiobalises de localisation des sinistres (RLS) EPIRB émettent dans la bande 406 à 406,1 MHz et sur 121,500 MHz avec une autonomie de 100 H à +20°C et une autonomie de 40 H à -40°C.

Une radiobalise a une puissance comprise entre 20 mW et 350 mW sur 121,500 MHz. La Modulation d'amplitude émise sur cette fréquence correspond à un balayage de plus de 700 Hz entre 300 Hz et 1 600 Hz. L'émission sur les fréquences 121,500 MHz, (243,000 MHz version militaire), nécessite un repérage radiogoniométrique par les équipes de recherche au sol.

Une radiobalise a une puissance comprise entre 3 W et 7 W sur la bande 406 à 406,1 MHz en transmission digital codé du MMSI d'une durée de 440 ms tous les 50 s pour la signalisation et le répérage par satellite Cospas-Sarsat

Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
You may select the license of your choice.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

22 August 2009

application/ogg

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current12:59, 7 July 20198.2 s (23 KB)Deeday-UKLength of clip reduced from 1 min to 8 s – more than enough for such a repetitive sound.
21:46, 22 August 20091 min 2 s (164 KB)F1jmm== {{int:filedesc}} == {{Information |Description= {{fr|Émetteur : Modulation de balise radio de détresse sur 121,5 MHz et sur 243 MHz}} {{en|Transmitter Modulation of radio beacon of distress on 121,5 MHz 243 MHz}} |Source=travail personnel (own work

Global file usage

Metadata