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SDR/DSP Noise Cancellation Device
I do not know of any stand-alone digital hardware versions of the dual-antenna diversity function. The most likely reason is that you would need expensive A/D and D/A converters and a fast CPU to implement the algorithm. It is much cheaper to do an analog version like the Timewave or MFJ.
Roger
Roger
Jerry Lofstead W3CDE
The MFJ one is wonderful!!! Eliminated all the electric fence problems and other neighborhood noise.
Jerry W3CDE
On Sat, Sep 25, 2021 at 10:48 AM Al Hearn <alhearn@...> wrote:
Has anyone done work in creating a stand-alone DSP hardware implementation of the outstanding dual-antenna diversity function in SDRuno with the RPSduo? The idea would be a digital DSP version of, say, the Timewave ANC-4 or QRM Eliminator device, that would input to an existing receiver or transceiver to provide for two-antenna noise cancellation, beam forming, and orthogonal fade reduction. A digital version would allow for easier and more precise operation. Most current stand-alone SDRs such as the Russian Malachite DSP2 already have the necessary components except for a second tuner and logic to control IQ phase/amplitude.
Al Hearn <alhearn@...>
Has anyone done work in creating a stand-alone DSP hardware implementation of the outstanding dual-antenna diversity function in SDRuno with the RPSduo? The idea would be a digital DSP version of, say, the Timewave ANC-4 or QRM Eliminator device, that would input to an existing receiver or transceiver to provide for two-antenna noise cancellation, beam forming, and orthogonal fade reduction. A digital version would allow for easier and more precise operation. Most current stand-alone SDRs such as the Russian Malachite DSP2 already have the necessary components except for a second tuner and logic to control IQ phase/amplitude.