OVERVIEW: The P-19 radar with the Kasta 2E2 Upgrade (NATO name: FLAT FACE E aka FLAT FACE X) is an mobile, 3-D early warning radar operating in decimetric (NATO C/D) Bands.

DETAILS:    The Kasta 2E2 (39N6E) FLAT FACE E is a mobile early warning radar. The system features high jamming immunity and is reportedly reliable and easy to maintain.  It also incorporates an IFF.  The Kasta 2E2 is a redesigned derivative of the P-19.  It performs automatic detection, range/azimuth/altitude measurements as well as “friend or foe” identification of various aerial targets such as aircraft, low speed and hovering helicopters, remotely-piloted vehicles and cruise missiles, including those flying at low and very low altitudes. Due to superior performance the radar is capable of acquiring “stealth-technology” air targets as well as moving objects at sea. The 2E2 is capable of tracking up to 50 targets.

Specifications:

Frequency: 		825-890 Mhz (approx)(NATO C-Band)
Power output: 		
PRF:
Range:			3-81nm; 
Altitude:		0-19,685 feet			
Range Resolution:	100 m/ 0.6 degrees azimuth/900 m height		
Runup time:		up to 3.3 minutes
Set up time: 		up to 20 minutes

Detection Range,2m2 RCS
14m antenna height:	22nm (100m altitude)
			51nm (1000m altitude)
50m antenna height:	30nm (100m altitude)
			51nm (1000m altitude)	:

Detection Range,0.3m2 RCS
14m antenna height:	16nm (60m altitude)
50m antenna height:	24nm (60m altitude)
			
 
NOTES: The P-19 Kasta 2E2 system is mounted in three vehicles: an antenna mounted on a single truck, the command post is contained in a second truck, and a third truck which contains a diesel-electric plant and auxiliary equipment.
   


SOURCES: "39N6 - Radartutorial." Grundlagen Der Radartechnik. Accessed September 26, 2020. https://www.radartutorial.eu/19.kartei/02.surv/karte028.en.html; "Kasta-2E2". Standfair Operations. Accessed September 26, 2020. https://www.standfairoperations.com/products/air-defence-systems/radar-and-electro-optical-equipment-for-air-target-detection/kasta-2e2/ ; ""KASTA-2E2" (39N6E) Wayback Machine. Accessed September 26, 2020. https://web.archive.org/web/20120410082004/www.mzrip.ru/products/kasta2/ ; Pike, John. "P-15 FLAT FACE." GlobalSecurity.org. Last modified 7, 2019. https://www.globalsecurity.org/military/world/russia/flat-face.htm.

