Navaid Information

Navaid Facility ID:	GCO
Official Navaid Facility ID:	GCO
Navaid Facility Type:	DME
Navaid Name:	Chicago
City:	CHICAGO
State:	ILLINOIS
FAA Region:
Latitude:	41-59-38.720N (41.9941)
Longitude:	087-54-08.380W (-87.9023)
Lat/Long Survey Accuracy:
Owner:	FEDERAL AVIATION ADMINISTRATION
Operator:	FEDERAL AVIATION ADMINISTRATION
Common System Usage:	Yes
Public Use:	Yes
Navaid Class:	L-DME
Hours of Operation:	24
Magnetic Variance:	3.9 W as of 5/8/2022
ARTCC High Altitude ID (Name):	ZAU (CHICAGO)
ARTCC Low Altitude ID (Name):	ZAU (CHICAGO)

Navaid Remarks

Navaid ID	Navaid Facility Type	Remarks
GCO	DME	DME UNUSBL 185-194 BYD 10 NM BLW 4000 FT; 264-288 BYD 30 NM; 351-354 BYD 20 NM BLW 4000 FT.

Compulsory and Non-Compulsory Airspace Fixes

Navaid ID	Navaid Facility Type	Magnetic Variance	Airspace Fixes
GCO	DME	00E	DEGAN IL - K5 FNUCH IL - K5 HARRL IL - K5 KENIL IL - K5 NAPER IL - K5 NOLEN IL - K5 PALIE IL - K5 RAHNN IL - K5 REKKS IL - K5 RIDGE IL - K5 SIRCO IL - K5

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