Electronic Frequency Converter

Features

Specifications

• Overall Height:
  12.500 inches
• Overall Width:
  15.250 inches
• Average Life Measurement:
  Not rated
• Basic Shape Style:
  Rectangular or square
• Identification Designator:
  540b-28480
• Inclosure Type:
  Encased
• Installation Design:
  Top of cabinet/counter
• Circuit Construction Type:
  Electron tube
• Frequency Per Channel:
  10.0 megahertz operating channel
• Frequency Per Channel:
  12.4 gigahertz operating channel
• Operating Ac Frequency In Hertz:
  1000.0 single voltage
• Operating Ac Frequency In Hertz:
  50.0 single voltage
• External Ac Operating Voltage In Volts:
  115.0 single voltage
• External Ac Operating Voltage In Volts:
  230.0 single voltage
• Phase:
  Single
• Functional Classification:
  Aa-6.3
• Functional Description:
  Extends frequency measurement range of an/usm-26 & an/usm-207a into microwave range; along w/ an/usm-26 or -207a can measure frequencies up to 12.4 ghz, or w/ an external mixer 1-18 ghz; can be used w/out a frequency counter to measure frequencies below 4 ghz w/in about porm 0.5 pct; frequency is determined by zero-beating the unknown signal w/ a harmonic of an extremely stable signal generated w/in & to measure cm-77a fundamental frequency on a counter; multiplying counter readout by harmonic causing the zero-beat gives input frequency; harmonic no. Is determined from previous knowledge of input frequency or by computation; zer/-beat is displayed on internal oscilloscope
• Entry Date:
  70-12-01
• Reference Data And Literature:
  Dept of army publications: tb9-6625-336-50, 19 nov 64; tm11-6625-493-15 w/ changes 1 & 2, 29 sep 64; tm 11-6625-493-20p; tm11-6625-493-45p, 19 oct 64
• Relationship To Similar Equipment:
  Interchangeable w/ 6625009739267 & 6625007355167; similar to cm-77/usm
• Type/model Designation:
  Cm-77a/usm
• Federal Supply Class (fsc):
  Electrical and electronic properties measuring and testing instruments
• National Stock Number (nsn):
  6625-00-080-7204