11.5.2 Class Q’s Flashcards
What are the 3 radio transmitter components
Oscillator
Modulator
Power amplifier
What are the 3 receiver components
Amplifier
Tuning circuit
Demodulator
What is normal power output and range of VHF system
200nm
25 w
At what length is antenna most effective
1/4 wavelength
How can antenna be made smaller but remain effective
Use electronic couplers
What are connections between transducers and antennae called
Radio frequency lines
What are the 2 types of radio frequency lines
Coax
Wave guide
What does audio management unit do
Connects all crew audio equipment with radio communication navigation systems
How many systems can be set to transmit simultaneously
1
What systems are receive selectable only
Navigation systems
What does V,R and B position on ACP filter control select
V = voice
R = range
B = both
What are the 2 types of ELT
Fixed
Portable
How far can ELT BE RECIVED
200 nm
How long does ELT internal battery last for
48 hours
How many antennas does satcom use
1 top mounted
OR
2 side mounted
What frequency does the ILS components work at
75mhz
What’s the colour for the ILS markers
Outer marker = blue
Middle marker = amber
Inner marker = white marker
What radar has a longer range
Secondary
Is a weather radar a primary or secondary system
Primary
What is the primary function of modulation in radio communication
To encode information onto the carrier frequency
