OVERVIEW:  The MR-750 aka Fregat aka TOP PLATE radar is a shipborne 3-D air and surface search radar operating in the NATO E- band (IEEE S-Band).

DETAILS:  The Fregat is a family of 3D, 360-degree/full-coverage ship-based radar systems designed to provide surveillance and detection of surface and airborne targets and to deliver target designation data to weapon systems. 

The MR-750/TOP PLATE is a 3-D radar, employing two back-to-back canted planar arrays optimized for two different frequency bands.  The radar is a serially fed frequency scanning phased-array type.

  The Fregat radar system can operate effectively in intense jamming and countermeasures environments.


Specifications:

	Frequency:	2.0-2.5 GHz (E-band (NATO))
	PRF:		??
	Power: 		 30 kW (peak)
	Range:		160 nm (instrumented); 70 nm vs. fighter size targets 				(7m2RCS) 	(Fregat MAE); 16nm (missile) radar horizon for 				surface targets
	Accuracy:		120 m (range); 24 min (aziumth); 26-40 min (elevation)
			
NOTES:  IOC ???.  The radar received several modernizations, which were marked with the addition “…-M” and a sequential numbering. 

SOURCES: Friedman, The Naval Institute Guide to World Naval Weapons Systems 1997-98, pg. 331-32 ; "Ancile." Ancile. Accessed May 23, 2022. https://www.deagel.com/Sensor%20Systems/Fregat/a001879. ;""MR-750 “Top Plate” - Radartutorial." Grundlagen Der Radartechnik. Accessed May 23, 2022. https://www.radartutorial.eu/19.kartei/07.naval/karte091.en.html.;  Jane's Radar and Electronic Warfare Systems, "Fregat series surveillance radars," 02 July 2001; 


