Communications Flashcards
What are the 6 types of Messages in descending order?
- Distress Message
- Urgency Message
- Direction Finding Messages,
- Flight Safety
- Met Messages
- Flight Regularity
For VDF fixes what is the range of the fixes?
- Class A - Accurate to within 9.3km (5nm)
- Class B - Accurate to within 37km (20nm)
- Class C - Accurate to within 92km (50nm)
- Class D - Less accurate than class C
COM - What are the classes and acceptable error for a DF bearing?
- Class A - 2º
- Class B - 5º
- Class C - 10º
- Class D - >10º
COM - Whats the message format for a Medical transport routine PAN PAN MEDICAL?
- The call sign or other recognised means of identification,
- he position of the Transport,
- The number and type of medical transport,
- The intended route,
- The estimated time en-route,
- Any other information such as altitude.
COM - What are the elements of a PAN message to ATC?
- The name of the station being addressed,
- The identification of the aircraft,
- The nature of the urgency conditions,
- The intentions of the PIC
COM - When the distress situation is cancelled what message does ATC transmit?
Distress Traffic Ended
COM - What are the 7 elements of the May message? (In order if possible)
- The name of station being addressed,
- The identification of the aircraft,
- The nature of the distress conditions,
- The intention of the PIC,
- The present positions,
- The present Alt,
- The present heading
COM - What is the Civil Band for VHF Communication?
118.00 MHz - 137.00 MHz
COM - What are the factors that affect VHF or UHF signals?
- Power of the transmitter,
- The height of the transmitter and receiver,
- Obstructions between transmitter and receiver.
COM - What should an aircraft transmit to cancel distress?
Cancel Distress
COM - What is the relationship between frequency and wavelength
Wave length = Speed of Light ÷ Frequency
COM - What is the calculation to solve the max theoretical range?
1.23√H1 + 1.23√H2 = MTR
COM - What is the range of frequencies in the radio spectrum?
3 KHz - 300GHz
COM - What information is required in a position report?
- Aircraft Identification,
- Position, * Time, * level,
- next position and time over,
- Ensuing significant point.
COM - What should be read back during clearances?
- Taxy instructions,
- Clearance to enter,
- Land and Take off,
- Heading instructions,
- Altimeter Settings,
- SSR Codes (Transponder Codes),
- Airways or routes,
- Clearances,
- VDF information,
- Frequency Changes,
- Type of Radar Service