Adding GPS for Drone Speed Testing

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OK, I'm gonna do speed testing! Not with a radar gun but with GPS instead. There will be plenty of comments about how this is not accurate but no proof with be offered as to why GPS is any less accurate than radar gun measurements.
✔️I used the BN-180 but others will work just as well...
BN-180 -
BN-200 -
BN-220 -
BN-280 -
BN-800 -
BN-880 -
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