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fosphor - Demo

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Published on Oct 26, 2013

Short demonstration of gr-fosphor ( https://sdr.osmocom.org/trac/wiki/fos... ), a GNU Radio block for RTSA-like display.

The first signal is capture around 2.4GHz and shows different type of wifi signals along with some frequency hopping bluetooth communication overlapping. Captured at 20 Msps with a Hack RF.

The second signal shows the GSM band, captured at 40 Msps with a Blade RF. At this sample rate, GSM seems pretty narrow band. You can clearly see the various type of channels and on the C0 ones (continuous) you can even see the periodic FCCH bursts (pure tones)

The last signal is a LTE signal, again captured at 40 Msps with a Blade RF. On the top histogram view you can clearly see the two power levels present in the signal (when there is something and when there isn't). On the bottom waterfall view, the "block" allocation is very visible. Not much activity on the cell here.

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