Further, an airport's existing airport surveillance radar
(ASR) and automation system provides positional and flight plan information.
It consists of an airport surveillance radar
able to identify aircraft at ranges of up to 60 nm using primary radar and 200 nm with secondary radar, as well as of a precision approach radar (Par) which provides azimuth and elevation information from 20 nm to touchdown.
An FAA spokeswoman said the Airport Surveillance Radar
9 (ASR9) system is considered to be 99.6% reliable.
Balad Air Base is scheduled for a significant upgrade in radar equipment, with upgrades such as a new Airport Surveillance Radar
(ASR), radar scopes, and radios that will improve upon the aged equipment currently being used.
I make prior arrangements with the Marine Corps Air Station at Yuma (KYUM) for multiple Ground Control Approaches, both Precision Approach Radar (PAR) and Airport Surveillance Radar
New ASR-11 Airport Surveillance Radar
will replace older-generation analog radars nearing the end of their service life.