SoDiRa

Software radio

Version 0.099


| german | download | handbook (german) | First Steps Video | history | home


last changes version 0.099

  • small bug fixes

  • soundfiles

    (saving via right mousebutton, with SoDiRa via "play" button starts playing )

    France Bleu 864 kHz AM Stereo demonstration, AM signal close right
    Radio Klassik VHF FM stereo with RDS, 192k samplerate
    Radio Vatican 7190 kHz DRM with high SNR > 35 dB
    Spark DRM+ demonstration generated with Spark and 1000 Hz frequency offset
    AM Signal 17700 kHz IQ balancing demonstration, (button "IQBal")
    RTL Radio 6095 kHz noise blanker demonstration, (button "iNB")
    DCF77/HBG Signal DCF77 Decoder demonstration

    characteristics:

  • Software Defined Radio (SDR) for analogue and digital modulation types
  • modulation types: AM envelope, AM synchronous, AM stereo, AM synchronous upper/lower band, LSB, USB, FM, VHF FM mono/stereo, DRM30, DRM+
  • decoding of AMSS, DCF77, RDS

  • minimal requirements:

  • 1 soundcard stereo with 48 kHz samplerate
  • at least Pentium 1000 MHz
  • 32 Bit Windows OS (Windows 98/2000/XP/Vista/7)
  • for 192 kHz recording, Windows XP SP1 is needed at minimum

  • internal direct supported receiver:

    model name tuning range audiobandwith oscillator chip communication device distributor/developer
    Elektor DRM receiver 03/2004 500 kHz - 20 MHz 12 kHz AD9835 DDS COM-Port,
    FTDI-USB seriell adapter
    Geist Electronic
    Burkhard Kainka
    DRT1 30 kHz - 30 MHz 12 kHz AD9951 DDS COM-Port,
    FTDI-USB seriell adapter
    SAT Schneider
    DiRaBox DRB30 30 kHz - 30 MHz 15 kHz AD9951 DDS DRB30/32 USB-LPT adapter NTI
    DiRaBox DRB32 30 kHz - 30 MHz 15 kHz AD9951 DDS DRB30/32 USB-LPT adapter NTI
    Elektor USB receiver 05/2007 30 kHz - 30 MHz 100 kHz IQ Cypress CY27EE16 FTDI-USB intern Burkhard Kainka
    HCJB Pappradio Version 1 30 kHz - 30 MHz 100 kHz IQ ICS307-03 COM-Port,
    FTDI-USB seriell adapter
    Pappradio Homepage

    ExtIO DLL supported receiver:

    Please note! I dont have this receiver! I can not test this receiver directly. PLease send me your feedback, good or bad or errors, else i can not find out problems. Some DLLs have errors. See the notes at: Winrad DLL Test

    model name tuning range audiobandwith known problems distributor/developer
    PM-SDR 100 kHz - 55 MHz 96 kHz max, IQ - Link
    Harzburg II 500 kHz - 30 MHz 96 kHz max, IQ - Link
    FiFi-SDR 0 kHz - 30 MHz internal soundcard, 96 kHz max, IQ - Link
    Perseus 0 kHz - 40 MHz 2000 kHz max, IQ - Link
    RFspace SDR-14 0 - 30 MHz 196 kHz max, IQ - link not known
    LD-1A 500 kHz - 30 MHz 96 kHz max, IQ - Link
    Softrock 0 - 30 MHz ? 96 kHz max, IQ - Link
    Pappradio Version 1 30 kHz - 30 MHz 96 kHz max, IQ crash while setting free DLL, DLL problem Link
    Pappradio Version 2 30 kHz - 30 MHz 96 kHz max, IQ DLL version 210 MHz is wrong, crash while setting free DLL, DLL problem Link
    Elektor SDR 30 kHz - 30 MHz 96 kHz max, IQ - Link
    FUNcube Dongle 64 MHz - 1700 MHz 96 kHz max, IQ - Link
    RTL2832 with USRP interface DLL 64 MHz - 1700 MHz 3000 kHz max, IQ soundinput has dropouts, DRM and RDS decoding corrupted, fail while frequency changing Link
    RTL2832 with SDR# interface DLL 64 MHz - 1700 MHz 2000 kHz max, IQ crash while closing program if GUI was opened, fixed bandwith of 2 MHz, audio quality is better than USRP Interface DLL Link
    Afedri SDR-Net 100 khz - 30 MHz 1250 kHz max, IQ - Link

    all other receiver:

    for all others the decoding functionality can be used via virtual soundcard VAC


    first beginning:

  • download software and driver for FTDI Chip, unzip this in any directory, install FTDI driver
  • plug communication device cable to PC and receiver (COM or FTDI-USB port)
  • plug wave device cable to PC and receiver (line-In or mikrofon-In)
  • select wavedevices and mixerchannels (->config ->wavedevice)
  • select receiver hardware (->config -> receiver), click "connect"
  • select a frequency via mouse or keyboard
  • select a demodulation or decoding mode at the main window right below

  • known problems, questios and answers:

    DRM is not operating with 192 khz samplerate

  • with version 0.072 this problem is solved
  • that is the DRM decoding performance?

  • since version 0.060 close to DREAM, practically the performance is the same
  • The DRM signal is good but the decoder is not working

  • DRM mode C und mode D are not supported at this tiome
  • sometimes synchronisation is wrong, use "reset" button
  • the audiocodec is not supported
  • How can i receive the VHF FM? The receiver range is only up to 30 MHz.

  • you need a second receiver with 10.7 MHz IF output signal and a soundcard with 192 kHz samplingrate
  • plug this signal to your receiver, select 10.7 MHz with SoDiRa
  • choose FM mode
  • Is the DCF77 time ecactly?

  • about 50 - 200 ms is the differences
  • The DCF77 time is not taking over after "synchronise systemtime"

  • The program has to started with admin permission