complete solution
Aeronautical fixed service
A radio service intended for the transmission of information relating to air navigation,
preparation for, and safety of flight is called.
Aeronautical ground stations
Aircraft stations are allowed to contact.
3-30 MHZ
Frequency range for High Frequency (HF)
121.5 MHZ
The VHF universal simplex channel for emergency and distress communication.
Pan Pan Pan
The international radio telephone urgency signal
121.5 MHZ / 243 MHZ
The Emergency Locator Transmitter (ELT) frequency
Volt-ohm meter
It is not a radio navigation aid
International Civil Aviation Organization
The meaning of ICAO
United Nations
The meaning of UN
Commissioner
Head of the NTC Commission
Calling Frequency
Calling Frequency - an agreed upon frequency where stations attempt to contact to
each other, once contact is made, stations move to a WORKING FREQUENCY
3-30MHz
Frequency used for sky wave propagation
WILCO
Your instructions received, understood and will be complied with.
MAYDAY
The spoken word for distress communications.
OVER
Spoken at the end of a transmission to indicate to the other station that it is their turn to
transmit. "My transmission is ended and I expect a response from you".
SEELONCE
International expression to indicate that silence has been imposed on the frequency due
to a distress situation. The aeronautical phrase is "STOP TRANSMITTING."
ROGER
I have received all of your last transmission.
ROGER NUMBER
I have received your message Number ___.
Emergency Locator Transmitter (ELT)
Transmitter wherein the aircraft can be located.