Software defined radio

From: Jonathan Naylor (nzwxuxm@hbm.com)
Date: Wed Feb 19 2003 - 19:12:09 EET

  • Next message: Margaret Leber: "Re: Software defined radio"

    Hi Folks

    I came across the SDR-14 software defined receiver whilst trawling the
    web. It looks very interesting for a number of uses. The supported
    software is Windows based but if they release the specs then everything
    should be alright. I am happy to see that they are using USB as the PC
    to radio connection mechanism.

    According to the blurb:

    ===========================================================
    The SDR-14 is a 14Bit Software defined radio receiver. It offers a broad
    range of demodulation and spectrum analyzer functions. The hardware
    directly samples the whole 0-30 MHz band using a sampling rate of
    66.666 MHz. This sampling rate allows the SDR-14 to capture the whole
    0-30 MHz band or any nyquist band up to 250 MHz with little degradation
    in performance. The digital data is processed into I and Q format using
    a direct digital converter (DDC) . The I and Q data is then sent to the
    PC for processing using a high speed USB interface. The SDR-14 also
    supports high resolution spectral captures using it's 512Kx16 deep
    memory.

    All of the demod and spectral functions are done on the PC side.
    Supported formats at this time include USB, LSB, AM, FM and CW.

    Some of the possible uses of the SDR-14 hardware include:

    Digital demodulation of signals in the 0-250 MHz bands.
    High quality spectral captures as wide as 30 MHz and resolution
    bandwidths as low as 0.02 Hz
    Ionospheric and band condition monitoring.
    Power, noise figure and antenna noise measurements.
    Radio astronomy observations and coherent signal detection in noise.
    Recording a 100KHz segment of any band (0-250 MHz) to hard drive in real
    time.
    Panoramic adapter for use with communication receivers like the AOR5000
    and IC-R8500.
    =============================================================

    Its home page is at http://www.rfspace.com/

    I have no connection to the company, I just thought it interesting.

    Jonathan

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