Wide Frequency Radio Receiver TR110

Retekess Technology Co., Ltd.; Shenzhen

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  • Anno
  • 2022 ?
  • Categoria
  • Radio (o sintonizzatore del dopoguerra WW2)
  • Radiomuseum.org ID
  • 349967

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 Specifiche tecniche

  • Numero di transistor
  • 5
  • Semiconduttori
  • Principio generale
  • DSP, Processore di segnale digitale
  • Gamme d'onda
  • Onde medie (OM), più di 2 gamme di onde corte (> 2 x OC) e MF (FM).
  • Tensioni di funzionamento
  • Batterie / presa di alimentazione supplementare / Li-Ion: 3.7 / USB-C: 5 Volt
  • Altoparlante
  • AP magnetodinamico (magnete permanente e bobina mobile) / Ø 4 cm = 1.6 inch
  • Materiali
  • Plastica (non bachelite o catalina)
  • Radiomuseum.org
  • Modello: Wide Frequency Radio Receiver TR110 - Retekess Technology Co., Ltd.;
  • Forma
  • Tascabile (portatile molto piccola), < 20 cm
  • Dimensioni (LxAxP)
  • 60 x 111 x 20 mm / 2.4 x 4.4 x 0.8 inch
  • Annotazioni

  • The Retekess TR110 FM.MW.SW.AIR.CB/VHF.UHF.WX.HAM Wide Frequency Radio Receiver  is a pocket unit featurig a variety of modulation modes like AM, WFM, NFM, and SSB (USB/LSB).

    This radio is sold under other brands like Raddy model RF760 or HanRongDa model HRD-747. All share the same chassis and cabinet. At least four chassis versions are known.

    Some specification discrepancies have been noted between the radio behavior and the user guide, like the claimed ability to receive VHF on WFM modulation; the recent production batches only allows NFM. A notable non-documented feature extend the MW band to receive LW when using an external antenna.

    Main features

    • FM:
      • Coverage: 64 - 108, 76 - 108, 87.5 - 108 MHz
      • Stepping: 10.0, 50.0, 100.0 kHz
      • De-emphasis: 50, 75 uS
      • Bandwidth: 110, 84, 60, 40 kHz
      • Modulation: WFM
      • Sensitivity: 1 μV
    • MW:
      • Coverage: 
        • 520 - 1710 kHz (10, 5 kHz steps)
          • 150 - 1710 kHz (10, 1 kHz steps) on ext. antenna
        • 522 - 1710 kHz, (9, 3 kHz steps)
          • 153 - 1710 kHz (9, 1 kHz steps) on ext. antenna
      • Bandwidth: 6, 4, 3, 2.5, 2, 1.8, 1 kHz
      • Modulation: AM
      • Sensitivity: 1.5 mV/m
    • SW:
      • Coverage: 3.20000 - 30.00000 MHz continuous scan (14 sub-bands)
      • Stepping: 5, 1, 0.1, 0.02, 0.01 kHz
      • Bandwidth: 6, 4, 3, 2.5, 2, 1.8, 1 kHz
      • Modulation: AM, SSB (USB), LSB
      • Sensitivity: 10 μV
    • AIR:
      • Coverage: 118.0000 - 138.0000 MHz continuous scan (5 sub-bands)
      • Stepping: 25, 12.5, 8.3 kHz
      • Bandwidth: 6, 4, 3, 2.5, 2, 1.8, 1 kHz
      • Modulation: AM
      • Sensitivity: 1 μV
    • CB:
      • Coverage: 25.00000 - 28.00000 MHz
      • Stepping: 5, 1, 0.1, 0.02, 0.01 kHz
      • Bandwidth: 6, 4, 3, 2.5, 2, 1.8, 1 kHz
      • Modulation: AM, NFM
      • Sensitivity: 10dBμV
    • VH/UHF: 
      • Coverage: 30.0000 - 520.0000 MHz continuous scan (8 sub-bands)
        • VHF: 30.0000, 136.0000, 174.0000, 220.0000 MHz
        • UHF: 409.0000, 446.0620, 462.5620, 443.0000 MHz
      • Stepping: 25, 12.5, 7.5, 5, 1 kHz
      • Bandwidth: 4.5, 3.75, 2.5, 1.7 kHz
      • Modulation: NFM
      • Sensitivity: -9dBμV
    • WX: (North American weather band)
      • Coverage: 162.4000 162.5500 MHz (7 fixed frequencies)
      • Bandwidth: 3 kHz
      • Modulation: NFM
      • Sensitivity: -9dBμV
      • Scan abd Alert mode (NOAA)
    • Squelch with 9 levels for SW, AIR, CB, and VHF/UHF bands
    • Manual and ATS tuning
    • 1000 memory presets
    •  
    • 3.5 mm Stereo earphone jack
    • 3.5 mm External antenna jack
    • USB-C port for battery charging
    • Digital thermometer
    • Clock, Sleep timer, and Alarm

    Brief technical details

    There are at least four revisions of the PCB assembly. Please see the schematic diagrams for details:

    • BY-747 V2.6 2021.4.15
    • BY-747 V3.6 2021.9.23
    • BY-747 V4.2 2022.11.11
    • BY-747 V5.0 2023.5.18
  • Autore
  • Modello inviato da Jose Mesquita. Utilizzare "Proponi modifica" per inviare ulteriori dati.

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