Emergency locator transmitter

URI: https://gptkb.org/entity/Emergency_locator_transmitter
GPTKB entity
Statements (51)
Predicate Object
gptkbp:instanceOf emergency beacon
gptkbp:406_MHz_models_registered_with national authorities
gptkbp:abbreviation ELT
gptkbp:activatedBy impact
gptkbp:can_be_automatically_activated true
gptkbp:can_be_crash-activated true
gptkbp:can_be_fixed true
gptkbp:can_be_manually_activated true
gptkbp:can_be_portable true
gptkbp:can_be_water-activated true
gptkbp:failure_to_maintain can result in fines
gptkbp:false_activation can cause unnecessary search and rescue operations
https://www.w3.org/2000/01/rdf-schema#label Emergency locator transmitter
gptkbp:installedOn gptkb:aircraft
gptkbp:introducedIn 1970s
gptkbp:location_accuracy within 2 km (406 MHz with GPS)
within 20 km (121.5 MHz)
gptkbp:maintenance battery replacement
periodic testing
gptkbp:monitors gptkb:COSPAS-SARSAT
search and rescue authorities
gptkbp:newer_models_transmit_on 406 MHz
gptkbp:not_required_on balloons
some experimental aircraft
some gliders
gptkbp:older_models_transmit_on 121.5 MHz
gptkbp:part_of aircraft safety equipment
gptkbp:provides gptkb:battery
gptkbp:purpose to aid search and rescue
gptkbp:regulates gptkb:ICAO_Annex_6
FAA regulations
gptkbp:relatedTo gptkb:personal_locator_beacon
emergency position-indicating radiobeacon station
gptkbp:required_on most civil aircraft
gptkbp:requires gptkb:Federal_Aviation_Administration
gptkb:International_Civil_Aviation_Organization
gptkbp:signal_detected_by satellites
ground stations
overflying aircraft
gptkbp:signal_duration minimum 24 hours (406 MHz)
minimum 48 hours (121.5 MHz)
gptkbp:signal_includes identification code
location data (406 MHz models)
gptkbp:signal_power 0.1 watt (121.5 MHz)
5 watts (406 MHz)
gptkbp:transmits_on_frequency 121.5 MHz
406 MHz
gptkbp:used_in aviation
gptkbp:usedFor aircraft emergency location
gptkbp:bfsParent gptkb:Search_and_rescue_transponder
gptkbp:bfsLayer 8