01 Introduction to Comms Flashcards
Effect of a stuck PTT button?
It can block a frequency, preventing all communications between ATC and aircraft on that frequency.
MSAW?
Minimum Safe Altitude Warning
MSA?
Minimum Sector Altitude
RNAV?
Area Navigation
APV?
Approach with Vertial guidance
LPV?
Localizer Performance with Vertical Guidance
CTA?
Control Area (Above the ground)
CTR?
Control Zone (From the surface to a specific limit)
TMA?
Terminal Manouvering Area?
MLS?
Microwave Landing System
HJ?
Sunrise to sunset
HN
Sunset to runrise
HO
Service avalaible to meet operational requirements.
HS
Service Available During Hours of Scheduled Operations
HX
No Specific Working Hours
H24
Continous Day and night operations
Garbled?
Not understood, Poor resolution.
Clipped / Stepped on?
interrupted.
QDM
Magnetic bearing to a station (ex: VOR)
(Direct me)
QDL
Series of bearings taken at regular intervals
QDR
Magnetic bearing from a station
(Direct Radial)
QFU
Magnetic bearing of the runway in use
QGE
Controlled descent through clouds
QGH
Controlled descent through clouds
QTE
True bearing from a station
(True eminating)
QTF
Position in relation to a point of reference or in latitude and longitude
QUJ
True bearing to a station
(True to the union jack)
CAVOK?
CAVOK: Ceilling and Visibility OK. The phrase CAVOK can replace the groups of visibility, present weather and sky condition if the appropriate conditions apply at the same time. These are:
- Visibility 10 km or more;
- No cloud of operational significance (no cloud base under 5 000 ft or the highest MSA, whichever is greater, and no CB or TCU);
- No weather of significance to aviation.
Radio Bearing?
The angle between the apparent direction of a definite source of emission of EM waves and the refernece signal.
VDF accuracy?
A: +/- 2 degrees
B: +/- 5 degrees
C: +/- 10 degrees
D: Worse the class C
You must read back accuracy
Homer?
A station that provides VDF on the approach frequency.
