AM/FM/SW Radio MP3 REC Player V115 SWR-710SV2

Retekess Technology Co., Ltd.; Shenzhen

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  • Année
  • 2019 ?
  • Catégorie
  • Radio - ou tuner d'après la guerre 1939-45
  • Radiomuseum.org ID
  • 324519

 Spécifications techniques

  • No. de transistors
  • 4
  • Semi-conducteurs
  • Principe général
  • PLL (Phase-locked Loop, boucle à phase asservie)
  • Gammes d'ondes
  • PO, OC et FM
  • Particularités
  • Autre appareil d'enregistrement
  • Tension / type courant
  • Accumulateur (par exemple pour autoradios ou radio) / Lion: 3.7 Volt
  • Haut-parleur
  • HP dynamique à aimant permanent + bobine mobile / Ø 3.7 cm = 1.5 inch
  • Puissance de sortie
  • 2 W (qualité inconnue)
  • De Radiomuseum.org
  • Modèle: AM/FM/SW Radio MP3 REC Player V115 SWR-710SV2 - Retekess Technology Co., Ltd.;
  • Dimensions (LHP)
  • 4.7 x 3.1 x 0.9 inch / 119 x 79 x 23 mm
  • Remarques

  • This is a feature rich world band digital pocket radio, recorder, and MP3 player. Main features:

    • FM band: 87-108MHz
    • MW band: 522-1710KHz (9KHz), or 520-1710 (10KHz), selectable
    • SW band: 4.75-21-85MHz
    • 100 radio presets (auto-scan and direct entry)
    • Dot matrix LCD backlit with programmable timer
    • Menus on 3 languages (Chinese, English, Spanish)
    • Sleep timer from 5 to 90 min
    • MP3/WMA format music player
    • Recorder from buitl-in microphone, from 3.5mm Aux Line in, or from radio reception (selectable from 64kbps, 96kbps, to 128kbps)
    • Nominal audio output power: 2Watt on speaker wth passive bass radiator
    • 3.5mm headphone jack
    • MicroSD card slot up to 32GByte
    • BL-5C 1000mAh rechargeable (cellphone) lithium battery
    • Charging: DC 5V, Micro USB interface

    This radio model is one among several other models from another brands that share the same chassis type. There are at least three chassis types corresponding to different production dates:

    • SWR-710 2014.11.20
    • SWR-710S 2017-4-20
    • SWR-710SV2 2019-3-16

    At least two firmware releases are in use: V1.2 and V1.4

    Besides Retekess, several brands share the above chassis types, like the Audiomax SRW-710S, Kaimeda SRW-710S, Tivdio V-115, and VRrobot_WC-710S.

    The above three chassis types share a common set of components, with minor changes. It uses 4 smd transistors and 4 smd IC's. Transistor Q3 is the RF front-end that feeds the IC3 Stereo FM / TV / MW / LW / SW digital tuning radio AKC6951(55) made by ETC, followed by IC4 Class D Audio Power Amp  MIX2008 made by Mixinno. The IC2 16Megabit Serial Flash Memory 25D16S16 made by Fentech is used by the IC1 Media MicroController FCK6C0N.1 made by AppoTech. This AppoTech IC seems to have several distinct labels on different radio chassis brands and variants, but most probable it is custom programmed for this application and seems to be based on AppoTech  own chips such as the AX2009  or the AX2220.

    A more recent variant of this chassis (2019.11.28) came to the market with Bluetooh capability (using a more recent AppoTech Media MicroController)  and it is in use at least in these radios:

    ZHIWHIS ZWS-603
    Audiomax K603

  • Poids net
  • 0.140 kg / 0 lb 4.9 oz (0.308 lb)
  • Auteur
  • Modèle crée par Jose Mesquita. Voir les propositions de modification pour les contributeurs supplémentaires.

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Le modèle AM/FM/SW Radio MP3 REC Player fait partie des collections des membres suivants.

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