UHF - ANSWERSUltra High Frequency (300 MHz - 3 GHz)
SHF - ANSWERSSuper High Frequency (3 - 30 GHz)
EHF - ANSWERSExtremely High Frequency (30 - 300 GHz)
RF - ANSWERSRadio Frequency
AF - ANSWERSAudio Frequency
ICS - ANSWERSIntercom System
SATCOM - ANSWERSSatellite Communication
SELCAL - ANSWERSSelective Calling
ACARS - ANSWERSAircraft Communication Addressing and Reporting System
ADF - ANSWERSAutomatic Direction Finder
NDB - ANSWERSNon Directional Beacon
CDI - ANSWERSCourse Deviation Indicator
VOR - ANSWERSVery high frequency Omni-Range
RMI - ANSWERSRadio Magnetic Indicator
DME - ANSWERSDistance Measuring Equipment
RNAV - ANSWERSArea Navigation
, ILS - ANSWERSInstrument Landing System
PAPI - ANSWERSPrecision Approach Path Indicator
Radio - ANSWERSThe wireless transmission of information from one point to another
Avionics That Use Radio Waves - ANSWERS- Communications
- Navigation
- Air traffic control radar
- Weather avoidance radar
- Approach and landing aids
- Altitude measurement
- Airborne collision avoidance
Ground Waves - ANSWERSRadio waves under 3 MHz that follow the curvature of the
earth
Sky Waves - ANSWERSRadio waves between 3 - 30 MHz that travel in straight lines
and do not follow the curvature of the earth. In addition, they will bounce or refract off
the ionosphere
Space Waves - ANSWERSRadio waves above 30 MHz that travel in straight lines and
do not bounce off of the ionosphere
Transmitter - ANSWERSThe electronic unit that accepts information and converts it into
a radio frequency signal capable of being transmitted over long distances
Oscillator - ANSWERSThe component that generates the carrier signal at the desired
frequency
Amplifier - ANSWERSThe component that increases the strength of a signal and is
found in both transmitters and receivers
Modulator - ANSWERSThe component that superimposes the audio frequency signal
onto the carrier wave signal before it is sent to the antenna
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