FROL Flashcards
(79 cards)
Range of VHF at less than 5000ft
60nm
Range of VHF 5000-10,000ft
90nm
Range of VHF >10,000ft
120nm
MULTICOM Frequency
126.7
Radio Waves between:
3kHz - 300GHz
VOR Range
200nm
VHF band:
118.0 MHz to 135.95 MHz
VOR band:
112.0 to 117.95 MHz
Primary Radar
50nm
What does ATIS stand for?
Automatic Terminal Information Service
List four items of meteorological data which are included in an ATIS broadcast:
Wind, Cloud, QNH, Temperature
LF Range
30kHz - 300kHz
HF Range
3MHz - 30 MHz
VLF Range
3kHz - 30kHz
MF Range
300kHz - 3MHz
VHF Range
30MHz - 300MHz
SHF Range
3GHz - 30GHz
UHF Range
300MHz - 3GHz
EHF Range
30GHz - 300GHz
What can VHF be used for?
VHF short range communication, VOR Nav and ILS
What antenna is generally used due to its higher strength , allowing it to be shorter than the wavelength?
Whip or Rod antenna
What are the four main types of antenna?
Boomerang (V-Type), Rod, Whip and Single Blade
Typical VHF is ~120MHz therefore has a wavelength of approximately ___?
2.5m
How many antennas are required for VOR radio and why do they need this number?
- To compare the strength of the frequencies so as that the VOR can be located.