High-performance Tactical Air Traffic Control System
Outstanding performance from a single compact sensor
Transports via single C-130 with setup in less than 90 minutes
Operates in high wind and other adverse weather conditions
Changes runways to any one of six preset touchdown points in under one minute
Latest architecture and technology for high availability and low life cycle costs
Uses only air cooling for high reliability and low maintenance
In operational use with the U.S. Air Force and in production for international customers
Tactical Area Surveillance and Precision Approach Landing System
AN/MPN-25
AN/MPN-25
The AN/MPN-25, a highly mobile, compact Airport Surveillance Radar (ASR) / Secondary Surveillance Radar (SSR) / Precision Approach Radar (PAR) System,
provides highly accurate detection of the airspace around an airport or air base. Simultaneous ASR/SSR and PAR operations from the single sensor develop
accurate radar data of both types. Versatile, multimode digital color displays and full communications in a tactical Operations Shelter support all controller
mission requirements. The ASR covers 30 nautical miles (nmi) and altitudes up to 8,000 feet. The SSR range is 100 nmi. The PAR range is 20 nmi with an
azimuth coverage of 30 degrees and elevation coverage of 8 degrees.
Superior Operational and Technical Performance
The AN/MPN-25 rolls on and off a C-130 transport for quick emplacement; it is fast and easy to install with automatic set-up; and its human-machine
interface is full color and arranged to reduce fatigue in the high-stress controller environment. The AN/MPN-25 achieves runway changes in less than a
minute - much faster than any competing system.The AN/MPN-25 achieves excellent target detection and tracking even in severe environments such as
heavy rain. High stability and advanced digital processing featuring Moving Target Detection (MTD) and extensive mapping ensure adaptation to the
changing environment.
Versatile High-Resolution Multimode Displays
The AN/MPN-25 Operations Shelter includes three universal color displays that controllers individually assign ASR or PAR mode based on traffic needs. The
FAA-certified ASR display format covers the air situation. The PAR display provides 3-D landing information in a state-of-the-art, digital Az-El format. This
patented display adds an innovative “bullseye” to give the controller a pilot’s view of the approach.
Focused Advanced Technology
The AN/MPN-25 achieves its outstanding capabilities through integration of
advanced technology into a cohesive user-friendly system. GaAs Transmit/Receive
Modules populate two active apertures for the azimuth and elevation antennas,
thereby eliminating the single point transmitter failure. Commercial off-the-shelf
(COTS) processors and power supplies ensure low-cost and high reliability.
Non-Stop Operation and Low Support Costs
The AN/MPN-25 modular, open architecture; solid-state design; and air cooling
achieve availability and reliability superior to any other radar-based landing system.
Incorporated redundancies increase fail-soft protection.
Very low support costs are inherent in the AN/MPN-25 through highly reliable
solid-state technology, minimized unique Line Replaceable Units (LRUs), and exten-
sive built-in test. Reduced deployed maintenance costs are a direct result of
designed-in fail-safe/fail-soft operation requiring only scheduled periodic mainte-
nance. Maintenance is further enhanced through remotely monitoring all system
functions via telephone lines.
AN/MPN-25 Performance Characteristics Overview
Target and Detection Definition:
Radar Cross Section 1 m2 to 1000 m2
Fluctuation Model Swerling I
Velocity PAR: +– 40 to +– 250 knots
ASR: +– 40 to +– 400 knots
Instrumented Coverage Volume
PAR Coverage Azimuth 30 degrees; Elevation -1 to +7 degrees
Altitude Min. 100 feet above Ground Intercept Point
Range 20 nmi in Clear Mode; 15 nmi in Rain Mode
Update Rate 1 per second
ASR Coverage Azimuth 360˚; Elevation 0˚ to 20˚; Altitude 0 to 8,000 ft.
Range 30 nmi in Clear Mode; 19 nmi in Rain Mode
Update Rate Each 5 seconds (antenna rotation 60 rpm)
SSR Coverage 360˚
For further information, contact: Range 60-250 nmi depending on interrogator selected
Update Rate Each 4.8 seconds (antenna rotation 12.5 rpm)
ITT Industries, Gilfillan Division
Aircraft Target Processing
7821 Orion Avenue
PAR Targets 50 plots/scan in azimuth; 22 plots/scan in elevation
Van Nuys, CA 91409-2085 ASR & SSR Targets 250 plots/scan
Phone: 818-988-2600 Reliability MTBCF 2212 hrs
Fax: 818-901-2435 Maintainability MTTR 0.25 hrs
http://www.ittgil.com Scheduled Maintenance Once per Quarter, 2 hrs.
Weather Processing Entire Radar Coverage Area, 3 Levels
