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[Paparazzi-devel] GPS precision


From: Ethan Arnold
Subject: [Paparazzi-devel] GPS precision
Date: Tue, 4 Sep 2007 09:56:45 +0200

Dear List,

Has anyone ever tried laying 2 GPS receivers (same model) side by side and
comparing the output over a reasonable period of time?

I noticed (with one receiver, under good reception) the measured GPS
position slowly (under 1m/s) wanders around in an area of about 10-20m
diameter. I was wondering if a second GPS receiver of the same model would
show the same deviation at the same time. If this were the case, couldnt one
use the stationary receiver as a reference point to correct the mobile GPS,
as long as they are relatively close together (<1km), and hereby be able to
detect the slow horizontal drifting of a helicopter, which otherwise couldnt
be detected with only the on-board GPS receiver?

Regards,
Ethan

-----Urspr√ľngliche Nachricht-----
Von: address@hidden
[mailto:address@hidden Im Auftrag von
address@hidden
Gesendet: Dienstag, 4. September 2007 08:39
An: address@hidden
Betreff: Re: [Paparazzi-devel] Funjet

Hi Matt,

> Could you send a photo or explain how you mounted the brushless
outrunner to the
> FunJET if there are any special considerations?  You use the 2216/26
correct?

The Funjet comes with a plastic motor holder, the Axi is mounted to that
with screws, no magic here :-)

Make sure you carefully adjust the motor down thrust (in manual flight) as
described in the manual.

Martin





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