• Year
  • 2011 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 333125

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

 Technical Specifications

  • Main principle
  • DSP, Digital Signal Processor
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Power type and voltage
  • Dry Batteries / AAA: 2 x 1.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: Pocket Radio M-01 RS - Muse brand, New-One S.A.S.;
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 59 x 105 x 22 mm / 2.3 x 4.1 x 0.9 inch
  • Notes
  • Main specifications

    • Receiver coverage
      • AM: 540 - 1600 kHz
      • FM: 88 - 108 MHz
    • Built-in 8 Ohm 0.5 Watt speaker
    • Earphone socket

    Technical details

    These observations were taken from a unit with a PCB identified as "MODEL:R1791N, AM/FM RADIO, THICKNE:1.2mm, Rev_1.1_2012/03/08".

    This model was designed around the KT Micro KT0922M (IC2 in the PCB) DSP AM / FM Receiver with built-in MCU and Class AB amplifiers able to drive earphones. This chip features analog-like tuning by using a 10K potentiomer (VOL1 in the PCB) for band scan. On this radio model, soft-muting was enabled during station scan.

    One 24C02N (IC1 in the PCB) 2kbit serial EEPROM is used by the KT0922M to initialize its operation mode with configuration data stored beforehand in this EEPROM.

    The audio output of the KT0922M  is then passed to one LB4890 (IC3 in the PCB) Audio Amplifier to drive the built-in speaker.

     

     

     

     

  • Net weight (2.2 lb = 1 kg)
  • 0.1 kg / 0 lb 3.5 oz (0.22 lb)
  • Author
  • Model page created by Jose Mesquita. See "Data change" for further contributors.

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