Downconversion and Filtering

Downconversion and FilteringThis video shows the progress made on Cocoa Radio since the last video. The spectrum that is visualized in the waterfall and graph is AFTER the downconversion mixer and FIR filter. As I move the red line (software tuning) around on the display, it changes the tuning of the downconverter, and you can see the spectrum change. Also, when I change the IF bandwidth, you can see the effects of the filtering. There’s still quite a bit of work to be done, but these results are encouraging. Source

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Noxon DAB Stick SDR (osmocom rtl-sdr) RTL2832U

Noxon DAB Stick SDR (osmocom rtl-sdr) RTL2832UFirst attempts on trying the Noxon DAB Stick at 144.800 MHz APRS with the delivered Antenna (indoors). See more here: sdr.osmocom.org This Stick was designed for listening to DAB only. Under Ubuntu it works for DVB-T and as a SDR with a Bandwidth up to 3.2 MHz. Tuning range could be from 64-1700 MHz (not tested with this NOXON Stick) 73 Oliver DL6KBG Source

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