ATSEP BASIC - All in one Questions and Answers
What type of surveillance is regarded Non-cooperative, independent surveillance?
PSR radar
What surveillance technique is ADS-B?
Cooperative, dependent surveillance
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ATSEP BASIC - All in one Questions and
Answers
What type of surveillance is regarded Non-cooperative, independent surveillance? -
answer PSR radar
What surveillance technique is ADS-B? - answer Cooperative, dependent
surveillance
What is an example of Cooperative, Independent surveillance? - answer SSR radar
How is an aircraft detected by the PSR? - answer By reflected electromagnetic
energy transmitted from the radar
What is radar clutter on an ATM radar? - answer Unwanted targets
What is a limitation to the PSR radar? - answer No identification of received echoes
What is meant by PRI? - answer Pulse repetition interval
What is the purpose of the duplexer? - answer To alternately switch the antenna
between receiving and transmitting
What is the operating principle of the aircraft transponder? - answer To code a reply
on the 1090MHz frequency in response to a SSR radar interrogation
What is transmitted on a Mode C reply from a transponder? - answer Pressure
altitude
What is it called when replies from 2 aircraft overlap causing errors in extracting the
included data? - answer Garbling
What is a disadvantage of the classical SSR radar? - answer Garbling can occur if 2
aircraft are close in slant range and on the same bearing
What is a feature of Mode S? - answer Selective interrogations to reduce FRUIT
What is provided with Mode S enhanced surveillance? - answer Downlinked aircraft
parameters
What is a feature of the Monopulse SSR radar? - answer Improved azimuth
resolution and fewer pulses needed to determine position
, ADS (automatic dependent surveillance) is a surveillance technique for use by ATS in
which: - answer Aircraft automatically provide, via data link, data from on-board
navigation systems
What is a feature of ADS-B? - answer High update rate and simple, omnidirectional
receivers
Which airborne equipment supports the 1090ES messages? - answer The Mode S
transponder
What is the dominant ADS-B data link technology in Europe? - answer 1090
extended squitter
What is the purpose of Mode S Short squitter? - answer ACAS/TCAS interrogations
What is variation? - answer The difference between true and magnetic north
What is meant by instrument flight rules? - answer Flying by reference to instruments
in the flight deck, and navigation is accomplished by reference to electronic signals
What is the most common geodetic reference system with global coverage? - answer
WGS 84
What is meant by "dead reckoning"? - answer Determining position based on known
speed, course and elapsed time
What is meant by "course" in relation to aircraft movement? - answer The direction
over the ground the aircraft is moving
What is considered an integrity risk in relation to navigational performance? - answer
That undetected navigational system errors results in hazardously and misleading
information to an aircraft
On what frequency band is the DME operating on? - answer UHF
What is an advantage with the NDB? - answer The low operating frequency allow
reception beyond line of sight
How does the VOR create the different radials? - answer By transmitting 2 signals
with different phases
What information does the pilot get from a NDB? - answer Direction only to the
station
What is a disadvantage of the NDB? - answer The signal is subject to interference
and reflections
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