SC-3

Type of Radar

Air Search/Surface Search

Manufacturer

General Electric

IEE Band

G Band

NATO Band

A Band

Exact Frequencies

195 – 205 MHz
215- 225 MHz

Power

100 kilowatts

Pulse Repetition Frequency (PRR/PRF)

60 pps

Pulse Length

6 to 30 microseconds

Antenna Beamwidth

17 x 60 degrees

Scan Rate

5 rpm

Range Accuracy

± 200 yards

Range Resolution

500 yards

Range Accuracy

± 100 yards

Bearing Resolution

10 degrees

Bearing Accuracy

± 3°

Performance Examples:

(Antenna at 100 foot altitude)

Medium Bomber at 1,000 feet at 30 nautical miles
Fighter at 25 nautical miles
Battleship at 10 nautical miles
Destroyer at 3 nautical 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:

Antenna weighs 1,478 lbs with dimensions of 4'6” x 15'. Antennas should be mounted as high as possible, preferably 100 feet or more, above other superstructures.

Personnel:

One operator per shift is minimum on all 3 sets.

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.

Notes.

Improved version of SC-2. There is no elevation control on any of the sets, but height can be estimated roughly from positions of minimum signal strength. The SC-3 is similar to the SC-2, SC-4 and SC-5. The SC-3 provides improved anti-jam video balance, back bias, IF rejection filter, and AVC features not found on earlier models. 200 produced.