Airframe Systems and Components (Navcom) Flashcards
Name the basic components of a communication system.
Microphone, transmitter, transmitting antenna , receiving antenna, receiver, and headset or loudspeaker
What is the most common communication system in use today?
VHF system (Very High Frequency)
which radio system is used for long range communication?
HF system (high frequency)
What is a transceiver?
its a self contained transmitter and receiver which share the same power supply, antenna and coaxial cable.
What type of conductors used for transmitting information between antennas and receiver/transmitters?
Coaxial cable
describe a BNC type connector?
connector for coaxial cable takes a quarter turn to fully seat.
what are the components of a typical VOR system?
Receiver , visual indicator, dipole antenna, and power supply
what are basic components of an autopilot system ?
Gyros, servos, and amplifier
what are the sensing elements of an auto pilot system?
Directional gyro, turn and bank gyro, attitude gyro, and altitude control
What are the output elements of an autopilot system?
Servos
what are three types of servos used in auto pilot system
hydraulic , pneumatic, and electric
What is the purpose of a bonding jumper on a radio shock mount?
provide a low-impedance ground return, and minimize radio interference from static electricity.
what is the frequency of an ELT?
121.5, 243.0, 406 MHz
how can you determine when the batteries of an ELT should be replaced?
Battery replacement date should be marked on the outside of the transmitter.
Describe the proper method of routing coaxial cable from the antenna to receiver.
Secure firmly about the entire length intervals of 2 feet. Cable should be run as straight as possible, Cable should not be routed or tied to other wire bundles. Be sure that the bend is at least 10 times the size of the cable diameter.
