SV, SV-a, SV-1 SEARCH RADAR
Description.-An 8 cm. aircraft warning radar for use on submarines
to supersede the SD.
Number of operators.-One Weight installed.-3,400 lb. Power suppIy. 6 kva, 115 volts, 60 cps, 1 phase. Maximum reliable range. (miles): Bombers, at 30,000 ft 7.5 Bombers, at 10,000 ft 10 Fighters, at 10,000 ft 12 Battleships 12.5 Cruisers 15 Destroyers 10 Submarines, surfaced 7.5 Resolution: Range (yd.) 5.7 Bearing (deg.) 5 Accuracy: SV SV-1 Range (yd.) +-(50+0.1%). 15+-1%. Bearing (deg.) +-2. 1/2. Minimum range (yd.) 400. 400.Indication and data output: Range: SV uses SJ-1 indicator (5 inch A scope with 10, 30 mi. ranges). SV-1 uses SS range indicator (3 inch A scope 10, 30 mi. ranges). Bearing: SV-1 uses SS bearing indicator (3 inch B scope with 4,000 yd. range). P.P.I.: 5-inch scope. Provision for four radar repeaters. Ranges: 4, 10, 40 miles on SV; 4, 10, 20, 80 miles on SV-1 Other: Provisions for IFF trigger and display. Antenna specifications: Total weight (lb.) 500 including pedestal but not torque tube. Feed Wave guide. Reflector: Type Slotted csc2 parabola. Size 2 ft. high x 4 ft. wide. H.P. beam width: Horizontal 5.5 degrees. Vertical 60 degrees. Polarization Horizontal. Gain (db) 30. Scan 360 degrees at 0 to 6 r.p.m. by motor. D-c motor control. Transmitter specifications: Frequency (Mc.) 3400-3700. R-f Source Magnetron. R-f Lines Wave guide. Pulser type Nonlinear coil. R-f peak power (kw) 500. R-f average power SV-0.2; SV-1-0.15.(kw). Pulse rates (pps) SV-300 +-5%; SV-1-300 +-5%. Pulse length (micro sec) 1. ![]() SV Radar PPI.
Receiver specifications: Type Superheterodyne. Stages 7 i.f. 2 video. Local oscillator 2K29. Intermediate freq. 60.(Mc.). Band pass (Mc.) 2 i.f.; 3 video. Mixer Crystal IN21B. Noise, db above 13. theoretical.Tube complement.-2 type 1B27; 1 type 2AP1; 1 type 2K29; 2 type 3B24; 4 type 5D21; 2 type 371B; 10 type 6AG7; 6 type 6AK5; 7 type 6AL5; 1 type 6S5GT; 18 type 6SN7GT; 1 type 6V6GT; 3 type 705A; 1 type 807; 1 type 4J36; 1 type 2X2; 5 type 5HP1; 17 type 6AC7; 4 type 991; 7 type OD3/VR150; I type 6Y6-G; 1 type 3B24; 1 type SFP7; 1 type 6H6GT; 2 type 6L6-GA; 2 type 991; 6 type SR4GY; 2 type 393A; 2 type C6J. Literature.-Instruction book, Ships 340. Dimensions and weights Unit Navy Type Length Width Depth Weight Pampanito Inches Inches Inches Pounds Serial # Antenna projector 66AJV 27 48 36 400 Transmitter-receiver 43ACW 22 21 70 800 C.R. Echo box 13ABG 16 8 7 10 Torque tube drive 10AFB 16 22 30 500 unit. Motor drive gear unit 10AFD 11 18 13 125 Motor drive shaft (#1) (#1) (#1) 14 Spline shaft drive unit. 1OAFC 11 17 9 50 Spline shaft (#2) (#2) (#2) 100 Spline shaft upper 10AFE 8 6 8 25 bearing unit. Synchro unit 21ADE 12 17 11 90 Main control unit 23AGD 18 21 18 100 #28,C.R. Range unit 23ACC 19 10 7 60 #28,C.R. PPI 55ADE 20 12 15 120 #28,C.R.,#6,C.T. Range indicator 55AGE 21 17 13 110 #28,C.R. Regulated rectifier 2OADN 27 20 18 250 #28,C.R. Auxiliary rectifier 20ADO 27 20 18 200 #28,C.R. Wave guide switching 24AAK 20 13 9 75 C.R. unit. Dummy antenna 66AJW 20 11 C.R. Motor controller unit. 23AGE 12 12 14 50 #28,C.R. Motor control rectifier. 2OADP 27 20 18 300 #28,C.R. Antenna drive motor. 21ADC 21 11 11 260 Adaptor control unit 23ABX 5 6 10 7 C.T., C.R. Frequency power meter TS-295/UP 10 9 9(#1) 1.5 diameter. Length cut on job. (#2) 2.25 diameter. 14' in length. REFERENCES:The information enclosed here is excerpted from:Catalogue of Naval Electronic Equipment-April 1946- NavShips 900,116.
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