FST-2

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FST-2 - A Radar Data Coordinate Data Transmitter built by Burroughs Corporation for use in the SAGE System. The FST-2 took the analog radar data, processed and digitized it and created digital target words that were transmitted to the SAGE Direction Center.

FST-2 Radar Data Coordinate Data Transmitter

The FST-2 was a very large duplex digital system using vacuum tube technology. Over 6900 vacuum tubes were used in each FST-2 requiring 21 air conditioned cabinets, 40 tons of airconditioning, 43.5 kva of prime power and usually a large new addition to the operations building. The FST-2B modification added two more cabinets but with newer solid state (transistor) technology to process coded responses from aircraft transponders.

The FST-2 used a magnetic drum synchronized with the radar set to store target "Hits", when sufficient hits were recorded a target message was created and sent to the direction center over voice grade telephone lines. Once a target was identified, the direction center could return a request for height information and slew the radar site height-finder to the correct azimuth where an operator would identify the target and transmit the target altitude to the direction center.

FST-2 Radar Data Coordinate Data Transmitter
Element Value Notes
Nomenclature FST-2
Variants FST-2A
FST-2B
Manufacturer Burroughs Corporation
Type Radar Data Processor
Inputs Radar Video
Beacon Video
SAH/F Requests
From Radar receivers
From Beacon receiver
From SAGE DC
Outputs 1300 bps Target Messages To SAGE DC
Number Made 134
Introduced 1959
Stock Number 5895-583-1140
5895-678-2621
FST-2A
FST-2B
FST-2B Aboard Texas Tower II circa 1961. Picture shows the solid state SIFF Cabinet opened for troubleshooting using a Tektronic 545 Oscilloscope and the Lewyt RO-65 Data Recorder
Sketch of OA-1163/FST Coordinate Data Monitor and RO-65/FST Data Recorder
Typical FST-2 Installation Plan



FST-2 Major Components (edit list)
Item Component Model Quantity Height Width Deep Weight Notes
1 Interconnecting Box J-797/FST-2 1
2 Decoder-Generator Group OA-2147/FST-2A 2
2 Decoder-Power Supply Group OA-2444/FST-2B 2
3 Quantizer Group OA-2149/FST-2A 2
3 Quantizer-Synchronizer Group OA-2329/FST-2B 2
4 Coordinate Data Storage Group OA-2148/FST-2A
OA-2328/FST-2B
2
2
5 Magnetic Drum Storage Amplifier AM-210?/FST-2A
AM-2218/FST-2B
2
2
6 Coordinate Data Monitor IP-366/FST-2
IP-498/FST-2
2
7 Data Processing Group OA-2150/FST-2A
OA-2327/FST-2B
2
2
8 Power-Signal Transfer Cabinet SA-621/FST-2A
SA-672/FST-2B
1
1
9 Data Processing Cabinet MX-2668/FST-2A
MX-2753/FST-2B
2
2
10 Power Supply Assembly PP-2210/FST-2
PP-2340/FST-2B
2
2
11 Converter-Shift Register Group OA-2051/FST-2A
OA-2326/FST-2B
2
2
12 Power Control-Regulating Cabinet C-2753/FST-2A
C-3005/FST-2B
2
2
13 Electronic Counter-Shift Register CP-117/FST-2A
CP-192/FST-2B
2
2
14 Data Processing Automatic
Clutter Mapper Cabinet
 ????/FST-2A 2
15 Interconnecting Box J-798/FST-2 2
16 Target Position Indicator IP-370/FST-2 4
17 Motor-Generator Control C-1979/FST-2 4
18 Motor-Generator PU-367/FST-2 2
19 Message Console OA-2140/FST-2 4
21 Message Console Panel PT-443/FST-2 4
24 Moving Target Indicator Group OA-1638/FST-2 2
Control-Indicator C-2969/FST-2 1
Indicator-Amplifier G-2843/FST-2A 1

See Also:

Sources:

  • Ogletree, Taylor, Veitch and Wylen, AN/FST-2 Radar-Processing Equipment for SAGE, Proceedings of the Eastern Computer Conference, December 1957, page 156-160. Pdf
  • MIL-HDBK-162A, 15 Dec 1965.

Links:



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