Radio Receiver R-109 / GRC

MILITARY U.S. (different makers for same model)

Data
Forum
Pictures
Collections

  • Year
  • 1954 ??
  • Category
  • Military Receiver
  • Radiomuseum.org ID
  • 217742

 Technical Specifications

  • Number of Tubes
  • 14
  • Main principle
  • Superhet with RF-stage; ZF/IF 4300 kHz; 2 AF stage(s)
  • Wave bands
  • Short Wave (SW only)
  • Power type and voltage
  • 6-24 Volt
  • Power out
  • 0.8 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Radio Receiver R-109 / GRC - MILITARY U.S. different makers
  • Shape
  • Boatanchor (heavy military or commercial set >20 kg).
  • Dimensions (WHD)
  • 7 x 9 x 12 inch / 178 x 229 x 305 mm
  • Notes
  • Frequency Range: 27 to 39 mc. Type of tuning: Continuously variable, and detent selection of 3 preset frequencies. Channel Spacing 100 kc. Number of channels: 120.
    Receiver type: FM, single-conversion, super-heterodyne. Types of signals received: voice-modulated or tone. Method of calibration of tuning dial: built-in, 4.3 mc, crystal-controlled oscillator. Calibration frequencies: multiples of 4.3 mc.
    Accuracy of calibration: approximately ± 0.1 percent.
    External (emergency supply): 6.3 volt and 130 volt external dc supply.
    Antenna: portable whip antenna. Coaxial connector and binding post on front panel.
    Sensitivity: over 25 db signal plus noise-to noise ratio at 0.5 µv (microvolt), deviation ± 15 kc.
    RF oscillator range: 31.3 to 43.3 mc. Bandwidth: (6 db down) 85 kc ± 15 kc.
    Audio output impedances (each): 600 ohm, unbalanced. Squelch circuit: continuously variable mounted SQUELCH control adjusts squelch sensitivity to open on signals from approximately 0.3 µv to 80 µv.
    OFF position of control disables squelch circuit.
  • Net weight (2.2 lb = 1 kg)
  • 25 lb (25 lb 0 oz) / 11.350 kg
  • Source of data
  • -- Original-techn. papers.
  • Author
  • Model page created by Jos Lauth. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum