Exam Review: ELTs Flashcards
What is an ELT and how is it activated?
Transmitter activated by G forces/water
How are ELT signals received?
Satelittes (COSPAS/SARSAT)
Old ELTs transmitted at what frequency and what did it do?
121.5 MHz and could only be used for HOMING
What do NEWER ELTs transmit?
406MHz but also possible is 121.5MHz
What are the advantages of the 406MHz ELT?
Better coverage
Accurate locations
Identification of FALSE alerts
GPS coordinates
This ELT transmits a DIGITAL signal every 50s at 5 watts for at least 24hrs
406MHz ELT
Why is the aircraft info/registration embedded in the signal?
In case of FALSE emergency
Where are ELTs located and how are they aligned on AIRCRAFTS?
Aft of fuselage
Aligned with LONGITUDINAL axis
Why can ELTs be easily removed from the aircraft?
Built in antenna so you can take the ELT with you in case of crash
True or False,
Should ELTs be inspected ANNUALLY?
True
When do we test ELTs?
First 5 minutes of the hour, listen for at least 1-3 sweeps