Software Defined Radio
From Wildsong
SDR's that are interesting to me.
RFSpace
RFspace has a receiver SDR-14 good for 0-30 Mhz. It uses a USB 2.0 interface to the computer and has a Windows program. It's $1099.
He is also working on a software defined spectrum analyzer. 500-30 Mhz.
The software component called SpectraVue is available separately from MOEtronix
WaveCOM
WaveCOM W61PC is a PCI card. W61LAN includes a computer.
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