7 Satellites but no LOCK

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HI

I just aquired a previously crashed Iris+. The transmitter shows 7 sats but the GPS lock light never shows locked. The Iris does ARM but will not spin up after arming.

Am totally new to drones.

Any help much appreciated.

Cheers
Alan
 
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Number of sats is not the indication of a suitable lock.
The HDOP has to be low and be consistent enough that the EKF is happy (search the Arducopter web site for references to these)
If the device has been shipped a long way you may need to wait until the GPS downloads a new almanac.

How long have you let it sit and waited for the lock?
I have know it to take 20 minutes sometimes.
Make sure you have clear sky above the GPS
 
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Hi Mike
Thanks for your reply, I probably left it in the open for 10 minutes with nothing obscuring the sky. Will try for longer when it stops raining.

Cheers
Alan
 

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