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ENTRY LIMITS
NEAREST LIST
ARTCC, FSS
Airspace
Airport, Intersection, VOR, VRP,
NDB, User, Weather FREQ
UPDATE INTERVALS
With the exception of nearest airspace, all lists update every 30 seconds. The nearest
airspace list updates once per second.
MULTIPLE FREQUENCIES
190-02488-01 Rev. B
Nearest Airspace
• Identifier • symbol • proximity
Nearest Air Route Traffic Control Center
• Facility name • distance • bearing • frequency
Nearest Flight Service Station
• Facility name • distance • bearing • frequency
("RX" denotes receive-only frequencies)
Nearest Weather Frequency
• Facility name • distance • bearing
• frequency of nearest ATIS, ASOS, and AWOS
ENTRY
LIMIT
05
20
25
This key displays when more than one frequency is
available at the indicated range.
Applicable to functions displaying information only
(ARTCC, FSS, and WX FREQ).
Pilot's Guide
The number of entries
displayed varies according
to item type.
Entries are ordered from
closest to farthest.
Navigation
3-63
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