Some specs on the Royal Thai Navy Naresuan Class (25T) Frigates:
Displacement: 2,900 tons full load
Dimensions: 119 x 13 x 3.8 meters (390.5 x 42.5 x 12.5 feet)
Propulsion: 2 shafts; 2 cruise diesels, 14,770 bhp; 2 LM2500 boost gas turbines, 50,000 shp, 32 knots
Crew: 150
Aviation: aft helicopter deck and hangar; 1 light helo
Radar: LW-08 2-D air search
Sonar: DE-1160 hull
Fire Control: Mk 92, Mk 91 missile control, STIR-18 gun control
EW: SLQ-32(V)2 intercept
Armament: 8 Harpoon SSM, 1 8-cell VL Sea Sparrow launcher 1 5/54 DP, 2 dual 37 mm AA, 2 triple 12.75 inch torpedo tubes
LW-08 Radar:
It's somewhat like a smaller version of the Dutch Kortenaer multipurpose frigate, minus the Goalkeeper CIWS system.