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Just how accurate is this 2000$ GPS supposed to be? Because my 40$ Ublox M8N GNSS modules on several copters produce a solid lock with constant HDOP<1.5 under n
by olex 11y ago
Just how accurate is this 2000$ GPS supposed to be? Because my 40$ Ublox M8N GNSS modules on several copters produce a solid lock with constant HDOP<1.5 under normal conditions, averaging around ~1.5m horizontal position deviation, and altitude is locked in via barometer down to several cm. To get more position accuracy, you really need DGPS, which AFAIK planes don't normally use either... and do those couple meters really matter?
- neurotech1 11y agoIts about certified accuracy. The UBlox or similar module could drift under certain conditions. From a practical point of view, knowing where the RPV is within a 100 meters would be more than enough. The $2000+ GPS is certified to provide position under Instrument Flight Rules for an RNAV (Required NAVigation performance) approach and landing. Not required for a RPV flown under 400ft visually.