AOR AR-ONE Specifications download pdf (Page 59)

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59 / 86 28.8.2007 13:16

NEW! 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 realtime. 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.

NEW! The latest version of SpectraVue supports a network SDR-14 under the InputSource menu. Server

software is available for Windows and Linux platforms. Due to the massive amount of data transfered, full

demod capabilities are only supported on intranets with over 2 Mb/s rates (50KHz BW). A linux USB driver is

now available for the SDR-14.

The list of possible uses of the SDR-14 include:

Panoramic adapter for use with communications receivers. (HF band IF frequencies 8.83, 10.7, 21.4, etc)1.

Radio astronomy spectral analysis.2.

Direct HF band reception using appropriate antenna.3.

Ionospheric and band propagation monitoring.4.

Interference surveying.5.

Power, noise and antenna measurements.6.

Law enforcement.7.

Homeland security.8.

Search for coherent signals hidden in noise.9.

Educational.10.

SpectraVue Software The SDR-14 uses Windows software for all of the display and demod functions. There are

currently Windows and Linux drivers for the USB chipset used in the SDR-14 hardware. The command

structure will be made available to those wishing to write their own applications. There is also the possibility that

a windows Activex control will be made available. The SDR-14 is supplied with the latest version of

SpectraVue software by Moetronix. This software includes Raw I&Q, 2D, 3D, Continuum (power vs. time) and

waterfall displays.

Full Band Spectral Scans This is a 30 MHz wide HF spectral scan during a thunderstorm. The horizontal burst

are caused by lightning. The receive antenna is a Cushcraft A3S. There is a lot of local interference at low

frequencies as shown on the plot.

These are some of the spectrograms captured using the SDR-14. Click on the preview picture to enlarge. (Some

browsers does not support this large of an image. If this occurs, right click and select "save as".)

High Resolution (14252x1355px) image of the 14.000 to 14.500 MHz band. NEW

Spectrogram of Amsat Oscar 40 Satellite at 2.4 GHz. Signal was converted to 10.7 and processed using the

SDR-14.

This spectrogram shows the 26 to 28 MHz band using a 406Hz resolution bandwidth (RBW). The ionospheric

sounder can be seen streaking up the band.

This spectrogram shows the 14.2 to 14.3 MHz SSB portion of the Amateur 20 meter band. The ionospheric

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AOR AR-ONE Specifications Page 59

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