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RFspace SDR-14
Software Defined Receiver


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Specifications | Screens | Spectral Scan | Spectrograms | Front Panel | Rear Panel | F.A.Q.

RFspace SDR-14

The RFspace SDR-14 is a 14-bit software defined radio receiver. It offers a broad range of spectrum analyzer and demodulation capabilities. The hardware samples the whole 0-30 MHz band using a sampling rate of 66.667 MHz. The digital data from the ADC 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 USB interface. All of the demod and spectral functions are done on the PC side. The panoramic adapter application is for use with communications receivers HF band IF frequencies at 8.83, 10.7, 21.4 MHz. etc). The connection between the SDR-14 and your PC is the USB jack on the rear panel. The SDR-14 is USB 2.0 'Full Speed' and is also fully compatible with USB 1.1.

Supported formats at this time include USB, LSB, AM, FM, WFM, CW, CWr and DSB. Filter bandwidths are continuously adjustable. DRM is now supported via special demod mode using third-party software (DREAM) by routing the demod audio through the mixer control.

The SDR-14 comes with a High Frequency (HF) amplified frontend with switched attenuators and 1Hz tuning. A direct input port to the analog to digital converter is also included. This port can be used to sample signals directly up to 200 MHz+. This port can also be used to connect downconverters and spectrum analyzer frontends. The SDR-14 also supports high resolution spectral captures using up to 262144 point FFTs. The maximum spectral display width is 30 MHz simultaneously.

One of the most exciting features of the SDR-14 is the ability to record band segments of any band to hard drive in real time. This is done at a rate of 52GB/day for a 150 kHz wide segment. The stored file contains everything that happened in that segment of the band for the duration of the recording. The fidelity of the file is superb with over 96dB of dynamic range. The recording can be played back at any time with full tunability and choice of demodulation modes. The recording can also be analyzed for hidden signals and carriers.

The SDR-14 operates from 12 VDC at 360 mA and comes with AC power supply, USB cable and computer CD. The SDR-14 software works with Windows 2000, XP and Vista.

Please see the December 2005 issue of QST for an in-depth review of this radio on pages 63-66.   View RFspace model comparison chart

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