MOCA's specify NAVAID reception distance between NAVAIDs as what value?

MOCA's specify NAVAID reception distance between NAVAIDs as what value?

• A. 22 NM
• B. 18 NM
• C. 25 NM
• D. 15 NM

Answer: (A)

MOCA defines the distance over which NAVAID signals are guaranteed for navigation. Specifically, a MOCA guarantees VOR/DME reception within 25 nautical miles of the VOR/DME facility. This means you can reliably use the DME for distance measurements and maintain obstacle clearance guidance when you’re within 25 NM of the VOR. Outside that radius, DME reception isn’t guaranteed (though VOR reception may still occur). So the correct value is 25 NM.

MOCA defines the distance over which NAVAID signals are guaranteed for navigation. Specifically, a MOCA guarantees VOR/DME reception within 25 nautical miles of the VOR/DME facility. This means you can reliably use the DME for distance measurements and maintain obstacle clearance guidance when you’re within 25 NM of the VOR. Outside that radius, DME reception isn’t guaranteed (though VOR reception may still occur). So the correct value is 25 NM.