References:
Naval Radar by Norman Friedman, Naval Institute Press, 1981.

AN/BPS-1

Manufacturer: Western Electric
Type: Submarine Attack Radar
IEEE Band: X Band
Power: 100 kW
Beamwidth: 2.6 x 16 degrees
Bearing Accuracy: 0.25 degrees
Range Accuracy: 25 yards
Detection Example: Destroyer at 12 nautical miles (alternately at 10 nm)

Notes:: Modified SS-1. First attack radar to operate at periscope depth.

AN/BPS-2

Manufacturer: Raytheon
Type: Submarine Air Search Radar
IEEE Band: L Band (1300 MHz)
NATO Band: D Band
Power: 500 kW
Beamwidth: 4 x 10 degrees
Bearing Accuracy: 0.5 degrees
Maximum Altitude: 70,000 feet
Detection Example: Bomber at 70 nautical miles

AN/BPS-3

Manufacturer: Western Electric
Type: Submarine Height-Finder
IEEE Band: S Band
Power: 125 kW
Beamwidth: 2 x 1.8 degrees
Detection Example: 20m2 target at 40 nautical miles
Maximum Range: 131 nautical miles?

AN/BPS-4

Manufacturer: Westinghouse
Type: Submarine Air Search Radar
IEEE Band: S Band
Power: 500 kW
Beamwidth: 5.3 x 50 degrees
Range Accuracy: 200 yards, or 3% of range
Bearing Accuracy: 1 percent
Detection Example: Bomber at 15 nautical miles

AN/BPS-5

Manufacturer: Lockheed
Type: Submarine Surface Search Radar
IEEE Band: X Band
Power: 100 kW
Beamwidth: 2.6 x 16 degrees
Range Accuracy: 2 percent of range
Bearing Accuracy: 0.25 degrees
Minimum Range: 0.1 nautical miles (200 yards)
Maximum Range: 79 nautical miles (160,000 yards)
Detection Example: Destroyer at 12 nautical miles

AN/BPS-6

Notes: Modified AN/BPS-2. Project was canceled.

AN/BPS-7

Manufacturer: Raytheon
Type: Submarine Height Finder

Notes: Canceled project.

AN/BPS-9

Manufacturer: Western Electric
Type: Submarine Surface Search Radar
IEEE Band: X Band
Power: 75 to 110 kW
Beamwidth: 2.6 x 16 degrees

AN/BPS-11

Manufacturer: Western Electric
Type: Submarine Surface Search Radar
IEEE Band: X Band
Power: 75 to 100 kW
Beamwidth: 2.6 x 16 degrees
Range Accuracy: 2 percent of range
Bearing Accuracy: 0.25 degrees
Minimum Range: 0.1 nautical miles (200 yards)
Maximum Range: 79 nautical miles (160,000 yards)

AN/BPS-12

Manufacturer: Fairchild Camera and Instrument Corporation
Type: Submarine Surface Search/Navigational Radar
IEEE Band: X Band
Power: 75 kW
Beamwidth: 2.6 x 12 degrees
Range Accuracy: 1-2 percent of range
Bearing Accuracy: 1 degree
Minimum Range: 0.2 nautical miles (400 yards)
Maximum Range: 39.5 nautical miles (80,00 yards)

Notes:: Redesigned AN/BPS-5.

AN/BPS-15

Manufacturer: Sperry
Type of Radar: Submarine Surface Search/Navigational Radar
IEEE Band: X Band
Power: 35 kW
Beamwidth: 3 x 13 degree beamwidth
Minimum Range: 25 yards
Range Accuracy: 30 to 100 yards