Messenger 109

Johnson Company, E.F.; Waseca, MN

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  • Year
  • 1970
  • Category
  • Citizen Band Equipment
  • Radiomuseum.org ID
  • 367948
    • Brand: Viking

 Technical Specifications

  • Number of Transistors
  • 14
  • Semiconductors
  • Main principle
  • Transceiver
  • Wave bands
  • Short Wave (SW only)
  • Power type and voltage
  • Batteries / addl. power jack / 13.8 / 13.8 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Messenger 109 - Johnson Company, E.F.; Waseca,
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 3.26 x 8.5 x 1.76 inch / 83 x 216 x 45 mm
  • Notes

  • Lightweight and rugged. Utilizes 14 transistors, 9 diodes and a thermistor to give excellent performance in both transmit and receive modes. Receiver sensitivity 10 db S+N/N ratio with 0.5 microvolts (30 % modulation at 1000 HZ). 6K HZ bandwidth at -6 db. Squelch is highly immune to impulse type noise. Noise limiting is series type with automatic threshold adjustment and IF clipping. Comes with nickel cadmium battery pack and built-in charger. Gives 8 hours service on a single charge. Squelch control silences receiver on "standby", prolongs battery life. Transmitter power input 3.7 watts at 13.8 VDC. RF power output 2.1 watts. High level class B modulation with speech compression, clipping and audio filtering.
    With channel 11 crystals.

  • Price in first year of sale
  • 149.95 USD
  • Mentioned in
  • -- Original prospect or advert (1970 Burstein catalog page 198 "NEW! JOHNSON MESSENGER 109")
  • Author
  • Model page created by Glen Orriss. See "Data change" for further contributors.

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