CAP 413
Radiotelephony Manual
Chapter 2 Page 7
1.7
Callsigns for Aeronautical Stations
1.7.1
Aeronautical stations are identified by the name of the location followed by a suffix
except that the name of the rig/platform/vessel is normally used by offshore mineral
extraction agencies. The suffix indicates the type of service being provided.
NOTE:
Lower Airspace Radar Service (LARS) is available from participating ATSUs
as described in UK AIP ENR 1.6.3.
1.7.2
There are three main categories of aeronautical communications service:
• Air Traffic Control Service (ATC) which can only be provided by licensed Air Traffic
Control Officers who are closely regulated by the relevant regulatory authority.
• Flight Information Service at aerodromes can be provided only by licensed Flight
Information Service Officers (FISOs), who are also regulated by the CAA.
• Aerodrome Air/Ground Communication Service (AGCS) which can be provided by
Radio Operators who are not licensed but have obtained a certificate of
competency to operate radio equipment on aviation frequencies from the CAA.
These operations come under the jurisdiction of the radio licence holder, but are
not regulated in any other way.
Other categories of aeronautical communications service include VOLMET, SIGMET,
Automatic Terminal Information Service (ATIS) or Aeronautical Information Services
(AIS).
1.7.3
It is an offence to use a callsign for a purpose other than that for which it has been
notified.
Table 8
Service
Suffix
Area Control
CONTROL
Radar (in general)
RADAR
Approach Control
APPROACH
Aerodrome Control
TOWER
Approach Control Radar
Arrival/Departure
DIRECTOR/DEPARTURE (RADAR – when tasks combined)/
ARRIVAL – (when approved))
Ground Movement Control
GROUND
Military Aerodrome Traffic
Zone (MATZ) Crossing
ZONE
Precision Approach Radar
TALKDOWN
Flight Information
INFORMATION
Air/Ground Communication
Service
RADIO
Clearance Delivery *
DELIVERY
* Clearance Delivery Officer (CDO) positions may be established at aerodromes to relay
ATC departure clearances. Standard phraseology for CDO departure clearance is
referenced in Chapter 11, paragraph 1.2.2 A CDO shall not relay start, pushback, taxi, or
take off instructions.
31 March 2011
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