SC-2

Type of Radar

Air Search/Surface Search with integral IFF

Manufacturer

General Electric

IEEE Frequency

I and G Bands

NATO Frequency

A Band

Exact Frequency

175 – 225 MHz

Peak Power

200 kilowatts

Pulse Repetition Frequency (PRR/PRF)

60 pps

Pulse Length

3 to 6 microseconds

Antenna Beamwidth

17 x 60 degrees

Antenna Gain

13.5 dB

Scan Rate

5 rpm

Range Resolution

500 yards

Range Accuracy

± 100 yards

Bearing Resolution

10 degrees

Bearing Accuracy

± 3°

Minimum Range

1,200 yards

Maximum Instrumented Range

5” A-Scope – 375 miles
12” PPI – 200 miles

Performance Examples:

(Antenna at 100 foot altitude)

Bomber at 30,000 feet at 90 miles
Bomber at 10,000 feet at 60 miles
Fighter at 10,000 feet at 40 miles
Battleships/Cruisers at 12 miles
Destroyers at 10 miles
Submarines (Surfaced) at 3 miles

Description:

Long wave search sets, installed on destroyers and larger ships to search for planes and surface vessels and for control of interception. All sets have an "A" scope, provision for IFF connections, and work with a gyro-compass repeater.

Transportability:

Shipment includes spares for each set. If separate generator is needed, it is included in shipment. Not air transportable.

Installation:

Has 6 components weighing a total of 3,000 pounds, with an antenna weighing 1,478 lbs with dimensions of 15' x 4'6”. Antennas should be mounted as high as possible, preferably 100 feet or more, above other superstructures.

Personnel:

One operator per shift is minimum.

Power:

Requires 2500 watts at 115 volts, 60 cycles. Uses ship's power of 115 volts, 60 cycles; transformer, if ship's power is 440 volts AC or 220 volts AC; motor generator if ship's power is DC.

IFF Frequency

31 MHz

Notes

Improved SC-1 with integral IFF. There is no elevation control on any of the sets, but height can be estimated roughly from positions of minimum signal strength. 415 had been produced by the time production completed in December 1943.