the sectorization is to show the frequency first,
followed by the identifier of the associated reference
point, followed next by the applicable radials, and,
finally, the associated altitude restrictions.
When an altitude restriction is shown on
the APT 4 page, the abbreviation BEL
means at and below the specified altitude.
The abbreviation ABV means at and above
the specified altitude.
311o - 60o
Figure 3-24. APT 4 Page (BEL)
In a few cases, APR, DEP, CL B, CL C, TRSA,
CTA, and TMA frequencies are sectorized such that
the restriction cannot be displayed on a single page.
When this occurs, TEXT OF FREQUENCY USAGE
NOT DISPLAYED is displayed on the APT 4 page.
There are some airports in the database for which no
communications information is available. In this case,
COMM FREQ DATA NOT AVAIL is displayed.
(5) Airport 5 Page. The APT 5 page is used
to store and display user-entered remarks. These
remarks might include information on lodging, dining,
airport services, etc. Up to 100 airports may contain
these remarks. A remark may contain up to 3 lines of
11 characters each. Letters, numbers, hyphens, and
spaces may be used in the remark.
1. Select the APT 5 page for the desired
2. Press the right CRSR button.
3. Rotate the right outer knob until the
cursor fills the entire third line of the
4. Use the right inner knob to select the
first character of the remark.
5. Turn the right outer knob one step
clockwise to move the flashing portion
of the cursor to the second cursor
position, then use the right inner knob
to select the second character.
6. Use the right outer and inner knobs to
select the rest of the first line of the
7. Press the ENT button to approve the
first line. The cursor will move to the
8. Use the above procedure to select the
characters of the second and third
lines of the remark. Press the ENT
button to individually approve each
line of the remark.
9. Press the right CRSR button to turn
the right cursor function off.
(6) Airport 6 Page. The APT 6 page shows
aeronautical services available for the selected airport.
These services include customs, fuel, and oxygen
availability as well as an indicator of a landing fee.
(a) Customs Information. Refer to Table
3-9 for customs displays and their explanations.
Table 3-9. Customs Information
available in the database.
private aircraft arriving to the
U.S. from Canada or Mexico.
Advance notice of arrival to
transmitted to a FAA facility.
This code is used when this is
the only type customs facility
Customs facilities are available,
but require prior request or
permission for use.
Customs facilities are available
on a restricted basis. Check
with airport before planning to