HF/VHF SWR Analyzer MFJ-259

• Paese
• USA (Stati Uniti d'America)

• Produttore / Marca
• MFJ Enterprises; Starkville (MS)

• Anno
• 1996 ?

• Categoria
• Altro apparecchio amatoriale (ma non tasto Morse) 

• Radiomuseum.org ID
• 336556

• Immagini
• Schemi

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• Numero di transistor
• A semiconduttori.

• Semiconduttori

• Principio generale
• Ricevitori speciali

• Gamme d'onda
• Gamme d'onda nelle note.

• Tensioni di funzionamento
• Batterie / presa di alimentazione supplementare / 8-18 or AA: 8 x 1.5 Volt

• Altoparlante
• - - Nessuna uscita audio.

• Materiali
• Mobile di metallo

• Radiomuseum.org
• Modello: HF/VHF SWR Analyzer MFJ-259 - MFJ Enterprises; Starkville MS

• Forma
• Tascabile (portatile molto piccola), < 20 cm

• Dimensioni (LxAxP)
• 4 x 7 x 2.5 inch / 102 x 178 x 64 mm

• Annotazioni

• 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.

   

• Bibliografia
• - - Manufacturers Literature (MFJ-259 manual version 1E (c)1996)

• Autore
• Modello inviato da Rich Post. Utilizzare "Proponi modifica" per inviare ulteriori dati.

• Altri modelli

• In questo link sono elencati 67 modelli, di cui 65 con immagini e 41 con schemi.
  Elenco delle radio e altri apparecchi della MFJ Enterprises; Starkville (MS)