NSN: 5895-01-193-7867

Technical Characteristics

• Test Data Document

  98230-0n311234 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)

• Frequency Rating

  47.0 hertz minimum and 440.0 hertz maximum

• Overall Depth

  18.000 inches nominal

• Information Recorded

  digital data

• Ac Voltage Rating

  115.0 volts nominal

• Overall Height

  5.250 inches nominal

• Overall Width

  19.000 inches nominal

• Recording Method

  tape

• End Item Identification

  an/fsq-137

• Type/Model Designation

  rd-557/fsq-137 recorder

• Functional Description

  contains a memodyne corporation model 3773 cassette recorder modified physically and electrically to meet tempest requirements; completely buffered and can accept and provide data at any random asynchronous rate of us to 1000 bytes/sec; records and plays

• Supplementary Features

  input/output: eia rs232c/ccitt i/mil current loop,8-bit parallel; baudrates: 110,150,300,600,1200,2400,4800,9600; data rate: up to 1000 characters/sec; storage capacity: up to 200,000 characters/sec; recording format: bit serial cnrz,dual track; error

• ~1

  back digital data

• ~1

  rate: 1 in 10,000,000 maximum,read/write tape sp