• Year
  • 1980–1982
  • Category
  • Amateur TRX: Transmitter/Receiver (and Transceiver)
  • Radiomuseum.org ID
  • 81666
    • alternative name: INOUE COMM. E. CORP

 Technical Specifications

  • Number of Transistors
  • 111
  • Semiconductors
  • Main principle
  • Transceiver; ZF/IF 10700/455 kHz
  • Wave bands
  • VHF incl. FM and/or UHF (see notes for details)
  • Power type and voltage
  • Line / Batteries (any type) / 117; 240 / 13.8 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: IC-251E - Icom, Inoue Communication
  • Shape
  • Tablemodel with Push Buttons.
  • Dimensions (WHD)
  • 241 x 111 x 264 mm / 9.5 x 4.4 x 10.4 inch
  • Notes
  • ICOM VHF-Transceiver IC-251E. Frequency range 144 - 146 MHz; Modes: SSB, CW, FM; Pout 10 W for SSB and CW, 1 - 10 W adjustable for FM.

    The British Mutek company sold a high-performance front-end board for this venerable RIG (Design by Ian White, G3SEK).

    Die britische Firma Mutek bot für dieses Gerät seinerzeit eine Hochleistungsvorstufenplatine zum nachrüsten an (Design nach Ian White, G3SEK). Die Eingangsempfindlichkeit und vor allem auch die Großsignalfestigkeit wurden dadurch erheblich verbessert.

    Superheterodyne receiver: in SSB/CW Single conversion, in FM double conversion.
    Sensitivity: In SSB/CW less than 0.5 µV for 10 dB S+N/N. In FM greater than 30 dB (S + N/N + D/N + D) at 1 µV.
    Transmitter: Dynamic Microphone 1.3 kΩ with preamplifier and PTT.
    This device can operate in Simplex and in Duplex.

    A model with the same characteristics except for the operating frequency is the IC 251 A. Frequency range 143.8000 - 148.1999 MHz.

  • Net weight (2.2 lb = 1 kg)
  • 5 kg / 11 lb 0.2 oz (11.013 lb)
  • Price in first year of sale
  • 1,900.00 DM
  • Source of data
  • -- Original prospect or advert
  • Mentioned in
  • RICOFUNK-Katalog 1980, 1983
  • Literature/Schematics (1)
  • -- Original prospect or advert (“Radio Rivista” official organ of "ARI Amat. Radio Assoc." of Italy, number 3, March 1981.)
  • Author
  • Model page created by Hugo Sneyers. See "Data change" for further contributors.

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