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NAVAID INFORMATION AS PUBLISHED ON 22 OCTOBER 2009
- ORD
- CHICAGO O'HARE VOR/DME
CHICAGO, IL
Location
Lat/Long: 41-59-15.624N / 087-54-17.590W (41.9876733/-87.9048861)
Elevation: 650 ft.
Variation: 02E (1965)
Operational Characteristics
Type: VOR/DME
Class: L-VORW/DME
Frequency: 113.90
TACAN channel: 086X
Altitude code: L (low)
Use at high altitude: yes
Hours of operation: 24
Voice: no
Morse ID: --- .-. -..
NOTAM facility: ORD
FSS:
FSS hours of operation: 24
Technical Characteristics
Accuracy: NOS
Monitoring: Internal monitoring plus status indicator
at control point
Owner: FEDERAL AVIATION ADMIN
Operator: FEDERAL AVIATION ADMIN
Common system usage: yes
For public use: yes
Remarks
- HIWAS BROADCAST.
- VOR PORTION UNUSBL 140-155 DEG BYD 15 NM; 100-140 DEG & 155-060 DEG BYD 35 NM BLO 2500 FT.
- TACAN AZIMUTH UNUSBL 020-040; 065-200; 270-315; 340-350.
- DME UNLOCKS CAN OCCUR PERIODICALLY DUE TO GROUND STATION OVERLOAD WHEN MORE THAN 100 ACFT INTERROGATIONS ARE RECEIVED AT THE SAME TIME. THE PROBLEM MAY OCCUR WHEN ACFT ARE BEING HELD IN THE CHICAGO-O'HARE TERMINAL AREA AWAITING APCH CLNC AT O'HARE. POSSIBILITIES OF THE PROBLEM OCCURRING ARE REDUCED BY USERS DEACTIVATING INTERROGATORS DURING NONUSE OR SWITCHING TO AN ILS DME WHENEVER POSSIBLE. DEACTIVATING INTERROGATORS ON THE GROUND IS ESPECIALLY INPORTANT SINCE NEARBY ACFT CAUSE MORE OVERLOAD THAN DISTANT ONES.
