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traffic, Apache Two Two Five Zulu, (position),
(altitude), (descending) or entering downwind/base/final
(as appropriate) runway one seven full stop, touch-andgo,
Strawn.
Strawn traffic Apache Two Two Five Zulu clear of runway
one seven Strawn.
(b) Outbound
EXAMPLEStrawn
traffic, Queen Air Seven One Five Five Bravo
(location on airport) taxiing to runway two six Strawn.
Strawn traffic, Queen Air Seven One Five Five Bravo
departing runway two six. Departing the pattern to the
(direction), climbing to (altitude) Strawn.
(c) Practice Instrument Approach
EXAMPLEStrawn
traffic, Cessna Two One Four Three Quebec
(position from airport) inbound descending through
(altitude) practice (name of approach) approach runway
three five Strawn.
Strawn traffic, Cessna Two One Four Three Quebec
practice (type) approach completed or terminated runway
three five Strawn.
h. UNICOM Communications Procedures
1. In communicating with a UNICOM station,
the following practices will help reduce frequency
congestion, facilitate a better understanding of pilot
intentions, help identify the location of aircraft in the
traffic pattern, and enhance safety of flight:
(a) Select the correct UNICOM frequency.
(b) State the identification of the UNICOM
station you are calling in each transmission.
(c) Speak slowly and distinctly.
(d) Report approximately 10 miles from the
airport, reporting altitude, and state your aircraft type,
aircraft identification, location relative to the airport,
state whether landing or overflight, and request wind
information and runway in use.
(e) Report on downwind, base, and final
approach.
(f) Report leaving the runway.
2. Recommended UNICOM phraseologies:
(a) Inbound
PHRASEOLOGYFREDERICK
UNICOM CESSNA EIGHT ZERO ONE
TANGO FOXTROT 10 MILES SOUTHEAST
DESCENDING THROUGH (altitude) LANDING
FREDERICK, REQUEST WIND AND RUNWAY
INFORMATION FREDERICK.
FREDERICK TRAFFIC CESSNA EIGHT ZERO ONE
TANGO FOXTROT ENTERING DOWNWIND/BASE/
FINAL (as appropriate) FOR RUNWAY ONE NINER (full
stop/touch-and-go) FREDERICK.
FREDERICK TRAFFIC CESSNA EIGHT ZERO ONE
TANGO FOXTROT CLEAR OF RUNWAY ONE NINER
FREDERICK.
(b) Outbound
PHRASEOLOGYFREDERICK
UNICOM CESSNA EIGHT ZERO ONE
TANGO FOXTROT (location on airport) TAXIING TO
RUNWAY ONE NINER, REQUEST WIND AND TRAFFIC
INFORMATION FREDERICK.
FREDERICK TRAFFIC CESSNA EIGHT ZERO ONE
TANGO FOXTROT DEPARTING RUNWAY ONE NINER.
“REMAINING IN THE PATTERN” OR “DEPARTING
THE PATTERN TO THE (direction) (as appropriate)”
FREDERICK.
AIM 2/14/08
4-1-6 Services Available to Pilots
4-1-10. IFR Approaches/Ground Vehicle
Operations
a. IFR Approaches. When operating in accordance
with an IFR clearance and ATC approves a
change to the advisory frequency, make an
expeditious change to the CTAF and employ the
recommended traffic advisory procedures.
b. Ground Vehicle Operation. Airport ground
vehicles equipped with radios should monitor the
CTAF frequency when operating on the airport
movement area and remain clear of runways/taxiways
being used by aircraft. Radio transmissions
from ground vehicles should be confined to
safety‐related matters.
c. Radio Control of Airport Lighting Systems.
Whenever possible, the CTAF will be used to control
airport lighting systems at airports without operating
control towers. This eliminates the need for pilots to
change frequencies to turn the lights on and allows a
continuous listening watch on a single frequency. The
CTAF is published on the instrument approach chart
and in other appropriate aeronautical information
publications. For further details concerning radio
controlled lights, see AC 150/5340-27, Air-to-
Ground Radio Control of Airport Lighting Systems.
4-1-11. Designated UNICOM/MULTICOM
Frequencies
Frequency use
a. The following listing depicts UNICOM and
MULTICOM frequency uses as designated by the
Federal Communications Commission (FCC).
(See TBL 4-1-2.)
TBL 4-1-2
Unicom/Multicom Frequency Usage
Use Frequency
Airports without an operating
control tower.
122.700
122.725
122.800
122.975
123.000
123.050
123.075
(MULTICOM FREQUENCY)
Activities of a temporary, seasonal,
emergency nature or search and
rescue, as well as, airports with no
tower, FSS, or UNICOM.
122.900
(MULTICOM FREQUENCY)
Forestry management and fire
suppression, fish and game
　
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