CMiK 9-Band World Receiver KK-9

Unknown - CUSTOM BUILT: China

Datos
Foro
Imágenes
Colecciones

  • Año
  • 2019 ?
  • Categoría
  • Radio - o Sintonizador pasado WW2
  • Radiomuseum.org ID
  • 334589

Haga clic en la miniatura esquemática para solicitarlo como documento gratuito.

 Especificaciones técnicas

  • Numero de transistores
  • 3
  • Semiconductores
  • Principio principal
  • DSP, Digital Signal Processor
  • Gama de ondas
  • OM, más de dos OC y FM
  • Tensión de funcionamiento
  • Pilas + jack (etc.) para alimentación externa. / AA: 2 x 1.5 / 3 Volt
  • Altavoz
  • Altavoz dinámico (de imán permanente) / Ø 5.7 cm = 2.2 inch
  • Potencia de salida
  • 0.1 W (unknown quality)
  • Material
  • Plástico moderno (Nunca bakelita o catalina)
  • de Radiomuseum.org
  • Modelo: CMiK 9-Band World Receiver KK-9 - Unknown - CUSTOM BUILT: China
  • Forma
  • Portátil de bolsillo , menor de 20cm.
  • Ancho, altura, profundidad
  • 130 x 78 x 29 mm / 5.1 x 3.1 x 1.1 inch
  • Anotaciones

  • This is a DSP version of the popular analog KK-9 Chinese model previously seen on several brands where the CD2003 analog radio IC is used.

    This CMiK KK-9 unit, using a PCB marked as "KK-9/A 2019.7.8", features the KT0936MB9 DSP radio chip (IC2 in the PCB) configured to run without an additional custom setup EEPROM.

    Unlike so many DSP designs, this implementation does not use the soft mute option, resulting in an analog like behavior when scanning radio signals.

    The design is pretty much based on the Micro KT0936MB9) published white paper. The FM and MW bands are handled directly by the DSP chip, while the SW signals are first passed thru a S9018 transistor front-end (Q3 marked as J8). The built-in paper cone 8 Ω 0.5 Watt speaker is driven by a 8002A class AB power amplifier (IC1). Two additional transistors (Q1, Q2) are used in the keyboard/dial scale PCB to drive the AM/FM band indicator LEDs.

    The fake DX/Local switch is also used here, as seen before in so many other KK-9 variants.The slider switch misses the metallic contacts, and the two switch poles in the PCB are disconnected.

  • Peso neto
  • 0.150 kg / 0 lb 5.3 oz (0.33 lb)
  • Autor
  • Modelo creado por Jose Mesquita. Ver en "Modificar Ficha" los participantes posteriores.

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Colecciones

El modelo CMiK 9-Band World Receiver es parte de las colecciones de los siguientes miembros.

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