HF/VHF SWR Analyzer MFJ-259

MFJ Enterprises; Starkville (MS)

Data
Forum
Pictures
Collections

  • Year
  • 1996 ?
  • Category
  • Amateur Equipment (Other, but not Key)
  • Radiomuseum.org ID
  • 336556

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

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Special principle (see notes)
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Batteries / addl. power jack / 8-18 or AA: 8 x 1.5 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: HF/VHF SWR Analyzer MFJ-259 - MFJ Enterprises; Starkville MS
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 4 x 7 x 2.5 inch / 102 x 178 x 64 mm
  • Notes

  • MFJ-259 HF/VHF SWR Analyzer

    The MFJ-259 combines four basic circuits: a wide range oscillator, a frequency counter, a 50 Ω RF bridge and a calibrated bridge unbalance indicator. This combination of circuits allows measurement of the SWR (referenced to 50  Ω) of any load connected to the ANTENNA connector. The FREQUENCY switch selects the following frequency ranges:
    1.8 - 4 MHz, 4 - 10 MHz, 10 - 26.2 MHz, 26.2 - 62.5 MHz, 62.5 - 113 MHz, 113 - 170 MHz.

    The MFJ-259 can be used to adjust or measure the following:
    Antennas: SWR, resonant frequency, bandwidth, efficiency
    Antenna tuners: SWR, frequency
    Amplifiers: Input and output networks
    Coaxial transmission lines: SWR, velocity factor, losses, resonance
    Balanced transmission lines: Impedance, velocity factor, resonance
    Matching or tuning stubs: SWR, resonant frequency, bandwidth
    Traps: Resonant frequency
    Tuned circuits: Resonant frequency
    Small capacitor: Value
    RF chokes and inductors: Self resonance, series resonance, value
    Transmitters and oscillators: Frequency

    The frequency counter can be used directly but signal must be limited to 5 V peak.

    Power: Uses 8 AA batteries, Alkaline or rechargeable. Power draw is 200 mA.  AC adapter model MFJ-1312B is compatible.

     

  • Mentioned in
  • - - Manufacturers Literature (MFJ-259 manual version 1E (c)1996)
  • Author
  • Model page created by Rich Post. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

The model HF/VHF SWR Analyzer is part of the collections of the following members.

 Forum