RF Power Analyst 4381

Bird Technologies, Bird Electronic Corp., Bird Engineering Co.; Cleveland (OH)

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  • Year
  • 1979
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 342816

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Transistors
  • 9
  • Semiconductors
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Batteries / addl. power jack
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: RF Power Analyst 4381 - Bird Technologies, Bird
  • Shape
  • Tablemodel, slant panel.
  • Dimensions (WHD)
  • 158 x 93 x 226 mm / 6.2 x 3.7 x 8.9 inch
  • Notes

  • The Bird RF Power Meter 4381 Analyst has the following features:

    • Forward or reflected power meter with operating frequencies from 0.45 to 2,300 MHz with power measurement range from 0.1 to 10,000 Watts in CW or FM.
    • Four digit display with automatic comma placement.
    • Measurement options: Emitted power, both forward and reflected in Watts or dBm; VSWR; return losses in dB; peak power in Watts; and modulation in percentage.
    • Option to detect and store the minimum/maximum power.
    • Powered by rechargeable Ni-Cad batteries and equipped with a battery charger.
    • Accuracy
      Power Readings: ±5% of full scale
      SWR:  ±10% of reading
      % Modulation: ±5% (for CW power level > 1/3 of full scale)
      Return Loss:  ±0.3dB to corresponding SWR value
    • Modulation Frequency: 50-10kHz
    • Impedance: 50Ω
    • Insertion SWR: 1.05 max to 1GHz
  • Net weight (2.2 lb = 1 kg)
  • 1.8 kg / 3 lb 15.4 oz (3.965 lb)
  • Mentioned in
  • -- Original prospect or advert (“Radio Rivista” official organ of "ARI Amat. Radio Assoc." of Italy, number 3, March 1981.)
  • Literature/Schematics (1)
  • -- Original-techn. papers. (Original "Instruction Book" for series 4380 by Bird)
  • Literature/Schematics (2)
  • orig. Instruction Book
  • Literature/Schematics (3)
  • - - Manufacturers Literature (The Best Got Better, Bird 4381, Bulletin No. PA 4381-1179, dated 1979)
  • Author
  • Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.

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