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by Johnythree
2892 days ago
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You what? Any sensitive Spectrum Analyser or SDR can see the bump in the spectrum caused by the GPS Signals. And quite a few amateurs have built homebrew GPS receivers. Or they can buy a little GPS module and use the data stream for a huge range of projects. Most modern digital Ham communication methods require a 10MHz feed from a GPS module to maintain sufficient time and frequency accuracy. |
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