Communiciation & Navigation Systems Flashcards
- Name the basic components of a communication system.
Microphone
Transmitter
Transmitter antenna
Receiving antenna
Receiver
Headset or loudspeaker
- What is the most common communication system in use today?
It is the VHF system
- Which radio system is used for long range communication?
HF (high system) system
- What is a transceiver?
Self contained transmitter & receiver which shares same power supply, antenna, & tuning device
- What type of conductor is used for transmitting information between antennas and receiver/transmitters?
Coaxial cable
- Describe a BNC type connector.
Connector used with coaxial cable 1/4 turn to seat
- What are the components of a typical VOR system?
Receiver
Visual indicator
Dipole antenna
Power supply
- What are the basic component of an autopilot system?
Gyros
Servos
Amplifier
- What are the sensing elements of an autopilot system?
Directional gyro
Turn & bank gyro
Attitude gyro
Altitude control
- What are the output elements of an autopilot system?
Servos which actuate control surfaces
- What are three types of servos used in autopilot system?
Hydraulic
Pneumatic
Electric
- What is the purpose of a bonding jumper/wire on a radio shock mount?
Provide low impedance ground return & minimize radio interference from static electricity
- What is the frequency of an emergency locator transmitter (ELT)?
121.5, 243.0, & 406.0 MHz
- How can you determine when the batteries of an ELT should be replaced?
Useful life is determined by the battery manufacture
Battery replacement date must be marked on outside of battery transmitter
Time is computed from the date of manufacture of battery
- Describe the proper method of routing coaxial cable from the antenna to the receiver.
Secure firmly every 24”.
Do not secure to other wire bundles use as short as possible cable
If bending 10x the size of cable diameter