Bendix Commercial Vehicle Systems Bendix/King Global Positioning System KLN 35A - Manual (Page 84)

CL C class C airspace (formerly airport radar service area) (VFR frequency)
CLR clearance delivery
CTA control area (VFR frequency used outside the U.S.)
CTAF common traffic advisory frequency
CTR center (when center is used for approach/departure control)
DEP departure
DIR director (approach control/radar)
GRND ground control
MCOM multicom
MF mandatory frequency
PCL pilot-controlled lighting
PTAX pre-taxi clearance
RAMP ramp/taxi control
RDR radar-only frequency
TMA terminal area (VFR frequency used outside the U.S.)
TWR control tower
UNIC unicom
Part-time operation, such as for a control tower, is indicated with an
asterisk (*) to the right of an airport frequency.
The frequencies associated with Class B or C airspace, CTA or TMA
are VFR frequencies. Airports which have one of these categories of
frequencies also have APR and DEP which are IFR frequencies.
Where required, APR, DEP, CL B, CL C, CTA, and TMA frequencies
are sectorized. That is, a frequency may be used only within a cer-
tain range of radials from a designated reference location. The
format for displaying the sectorization is to show the frequency first,
followed by the identifier of the associated reference point, followed
next by the associated altitude restrictions. For example, figure 3-
139 shows that the Orlando approach
control frequency 121.10 MHz is used
between the 311° radial and the 60°
radial from KMCO (Orlando
International Airport) for altitudes at
and below 5500 feet.
In a few cases, APR, DEP, CL B, CL C, CTA, and TMA frequencies
are sectorized such that the restrictions cannot be displayed on a sin-
gle page. When this occurs the following message is displayed on
the APT 4 page:
Text of Freq Use
Not Displayed
KLN 35A Pilot’s Guide Basic GPS Operation
3-49 Effective Date 5/95 006-08791-0000 Rev 0
Basic GPS Operation
Chapter 3
APT VOR NDB SUP ACT NAV FPL CAL SET OTH
åå.ånm KORL
ееееее APR 121.10
>Leg KMCO 311°-060°
APT+4 Below 5500'
Figure 3-139