RADAR

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Revision as of 11:16, 23 January 2012 by Balint (talk | contribs) (→‎Visualisation of RADAR activity)

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DFS with ath5k

  • With a view to Dynamic Frequency Selection powered by RADAR PHY errors reported to the driver.

Visualisation of RADAR activity

Visualisation app
  1. Patched ath5k driver reports PHY error details to userspace via debugfs.
  2. Python daemon on Linux collects details, sweeps frequency ranges on-demand, and reports details to any connected client over the network.
  3. .NET GUI visualises legitimate WiFi packets and RADAR errors over frequency/time, plots histograms of pulse width, RSSI distribution, time between pulses, and draws time-series graphic to help uncover repetition rate within a sample of pulses.

Spectrum Sweep

RADAR ath5k Count20.png RADAR ath5k RSSI20.png

RADAR ath5k Count10.png RADAR ath5k RSSI10.png

RADAR ath5k Count5.png RADAR ath5k RSSI5.png

Kurnell Weather RADAR

  • 5500/5600MHz

RADAR ath5k Kurnell TimeCount.png RADAR ath5k Kurnell TimeRSSI.png RADAR ath5k Kurnell TimeWidth.png RADAR ath5k Kurnell TimeTime.png RADAR ath5k Kurnell PRF1000.png

RADAR ath5k Kurnell PRF5000.png RADAR ath5k Kurnell HistoTime5000.png

5800MHz

  • DECT nearby?

RADAR ath5k Room RSSI.png RADAR ath5k Room PRF.png

5140MHz

RADAR ath5k 5140 TimeCount.png RADAR ath5k 5140 TimeRSSI.png RADAR ath5k 5140 TimeWidth.png RADAR ath5k 5140 TimeTime.png

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