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Recensione Tecnica - Ricevitore satellitare HD DREAMBOX DM500

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  • Recensione Tecnica - Ricevitore satellitare HD DREAMBOX DM500

    Dopo Dm800 e Dm8000, Dream Multimedia esce sul mercato con quello che da qui a breve, dopo l’abbandono dei vetusti modelli Enigma1, è diventato l’entry level della più nota casa tedesca produttrice di decoder linux based. Vediamo nel dettaglio quali sono le caratteristiche di questo nuovo piccolissimo decoder, in commercio dai primi mesi del 2010.



    CARATTERISTICHE TECNICHE

    400 MHz MIPS Processor
    Linux Operating System
    2 LED status
    MPEG-2 / H.264 Hardware decoding
    Tuner: DVB-S2
    1 x Smartcard-Reader (Dreamcrypt CA)
    Mini USB, Service
    10/100Mbit Ethernet Interface
    1 x Scart (RGB, FBAS or S-Video)
    HDMI
    analog modem
    S/PDIF Interface for digital bit stream out (AC-3)
    64 MByte Flash, 256 MByte RAM
    unlimited channel lists for TV/Radio
    channel-change time < 1 second
    automatic service scan
    directly bouquet-lists
    EPG (electronic program guide)
    multiple LNB-Switching control (supports DiSEqC)
    OSD in many languages and skin-support
    Videotext Decoder
    extern 12V power supply

    DreamBox DM 500 HD technical data

    DBS-Tuner, DVB-S2:
    Frequency Range 950 .... 2150 MHz
    Demodulation DVB-S (QPSK); DVB-S2 (8PSK,QPSK)
    Symbol rate DVB-S: 2 ... 45 Mbaud/s, SCPC/ MCPC
    DVB-S2: 10 – 31 Mbaud/s (8PSK) , 10 –30 Mbaud/s (QPSK)

    Video decoder:
    Video Compression MPEG-2 and MPEG-1 compatible, H.246
    Video Formats 4:3 / 16:9
    Letterbox for 4:3 TV-Device

    Audio decoder:
    Audiokompression MPEG-1 & MPEG-2 Layer I and II, MP3
    Audio Mode Dual (main/sub), Stereo
    Frequency: 32 kHz, 44.1 kHz, 48 kHz, 16 kHz, 22.05 kHz, 24 kHz

    Output analog:
    Output Level L/R 0,5 Vss on 600 Ohm
    THD > 60 dB (1 kHz)
    Crosstalk < -65 dB

    Output digital:
    Output Level 0,5 Vss on 75 Ohm
    Sampled Data Filtering 32 kHz, 44.1 kHz, 48 kHz
    S/PDIF-Output optical, Toslink

    Ausgang Video:
    Ausgangspegel FBAS 1 Vss +/- 0.3 dB an 75 Ohm

    Video parameter:
    Input Level FBAS 1 Vss +/- 0.3 dB on 75 Ohm
    Teletext filter in conformity with ETS 300 472 Standard

    TV-Scart:
    Output: FBAS, RGB, S-Video

    MiniUSB service connector
    Function: Update of Firmware

    Ethernet:
    10/100 MBit compatible interface
    Function: Update of Firmware

    Analoge modem:
    analoge modem for Internet connection

    LNB power and polarisation per tuner:
    LNB Current 500mA max.; short-circuit-protected
    LNB Voltage vertical < 14V no load, > 11,5V at 400mA
    LNB Voltage horizontal < 20V no load, > 17,3V at 400mA

    Count of active satellite position:
    DiSEqC 1.0/1.2 SAT POSITION / SAT OPTION
    DiSEqC - Rotor Control

    Power consumption:
    < 12W at 12V in operation
    < 1W in standby

    External PSU
    Input:
    110-240V AC / 50-60Hz / 0,6A
    Output:
    12V = / 3,0A

    Physical specification:
    Ambient Temperature +15°C...+35°C
    Humidity < 80%
    Size (W x D x H): 195 mm x 130 mm x 40 mm
    Weight: 0,7 kg without HDD

    DreamBox DM 500 HD technical data

    DBS-Tuner, DVB-S2:
    Frequency Range 950 .... 2150 MHz
    Demodulation DVB-S (QPSK); DVB-S2 (8PSK,QPSK)
    Symbol rate DVB-S: 2 ... 45 Mbaud/s, SCPC/ MCPC
    DVB-S2: 10 – 31 Mbaud/s (8PSK) , 10 –30 Mbaud/s (QPSK)

    Video decoder:
    Video Compression MPEG-2 and MPEG-1 compatible, H.246
    Video Formats 4:3 / 16:9
    Letterbox for 4:3 TV-Device

    Audio decoder:
    Audiokompression MPEG-1 & MPEG-2 Layer I and II, MP3
    Audio Mode Dual (main/sub), Stereo
    Frequency: 32 kHz, 44.1 kHz, 48 kHz, 16 kHz, 22.05 kHz, 24 kHz

    Output analog:
    Output Level L/R 0,5 Vss on 600 Ohm
    THD > 60 dB (1 kHz)
    Crosstalk < -65 dB

    Output digital:
    Output Level 0,5 Vss on 75 Ohm
    Sampled Data Filtering 32 kHz, 44.1 kHz, 48 kHz
    S/PDIF-Output optical, Toslink

    Ausgang Video:
    Ausgangspegel FBAS 1 Vss +/- 0.3 dB an 75 Ohm

    Video parameter:
    Input Level FBAS 1 Vss +/- 0.3 dB on 75 Ohm
    Teletext filter in conformity with ETS 300 472 Standard

    TV-Scart:
    Output: FBAS, YUV, RGB, S-Video

    MiniUSB service connector
    Function: Firmware update

    Ethernet:
    10/100 MBit compatible interface
    Function: Firmware update

    Analoge modem:
    analoge modem for Internet connection

    LNB power and polarisation per tuner:
    LNB Current 500mA max.; short-circuit-protected
    LNB Voltage vertical < 14V no load, > 11,5V at 400mA
    LNB Voltage horizontal < 20V no load, > 17,3V at 400mA

    Count of active satellite position:
    DiSEqC 1.0/1.1/1.2 and USALS - Rotor Control

    Power consumption:
    < 12W at 12V in operation
    < 1W in standby

    External PSU
    Input:
    110-240V AC / 50-60Hz / 0,6A
    Output:
    12V = / 3,0A

    Physical specification:
    Ambient Temperature +15°C...+35°C
    Humidity < 80%
    Size (W x D x H): 195 mm x 130 mm x 40 mm
    Weight: 0,7 kg

    d-sat
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