Difference between revisions of "Modez"
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The full write-up with screenshots, experimental results, comparisons to other hardware, overseas tests, etc, can be found on the [http://spench.net/drupal/research/mode-s main page]. | The full write-up with screenshots, experimental results, comparisons to other hardware, overseas tests, etc, can be found on the [http://spench.net/drupal/research/mode-s main page]. | ||
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| + | [[File:AvMap_514km.png|centre|thumb|800px|Distance record! 514km]] | ||
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| + | [[File:AvMap_GE_AngleToYSSY.PNG|centre|thumb|800px|Looking at Sydney airport from side-on, you can see the approach path of planes coming in to land on the active parallel runways]] | ||
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| + | [[File:AvMap_GE_ACARSBuildUp.png|centre|thumb|800px|ACARS messages are shown at the circular markers (one is shown in the balloon). Quite a few are sent over the course of a few hours.]] | ||
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| + | [[File:AvMap_TrailsBuildUp.png|centre|thumb|800px|Build-up of trails showing different runway configurations throughout the day]] | ||
== Decoder == | == Decoder == | ||
Revision as of 23:15, 1 April 2012
Contents
[hide]Summary
The full write-up with screenshots, experimental results, comparisons to other hardware, overseas tests, etc, can be found on the main page.
Decoder
- Scope of Mode S short frame with (red) binary decode overlaid:
- Drawing on Eric Cottrell's original decoder, this is the Modez-enhanced scope view with preamble, reference level and data-start/end markers:
- Evolution of the decoder showing improved noise floor:
Raw Samples
- 4MHz chunk visualised in GNU Radio (notice the nearby GSM channel intermod on the right-hand side):
- 8MHz chunk visualised in Baudline:
Inspiration
- Accessing SFO RADAR using the magic code-breaking box in the classic film Sneakers:
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