second rural range test

Jim Gettys jg at laptop.org
Tue Dec 19 11:05:32 EST 2006


Cool!

Is there a map of where the referred to waypoints are located?
                     Thanks for your efforts!
                          - Jim


On Tue, 2006-12-19 at 22:11 +1100, James Cameron wrote:
> G'day,
> 
> My wife Petria and I did some more testing this evening.  Summary of
> results:
> 
> 1.  ears down hindered connectivity, especially if the ears pointed
> toward or away from the access point, converting good coverage to
> marginal, but we haven't quantified the effect yet,
> 
> 2.  successful operation at 100m and 200m distance tested between all
> three laptops against an access point, to establish a baseline for
> further tests,
> 
> 3.  two of the three units were able to re-establish and operate a
> wireless network connection over 1.5km from the access point, to the
> point of pinging,
> 
> All three BTest-1 units are running olpc193_A62.zip from Mitch.
> 
> The access point has been mounted below the rain gutter on the side of
> the farm house, with both antennae connected.  The antennae are about 2m
> off the ground.
> 
> We've made a log of battery capacity, signal level, noise level, and
> ping time, at one second intervals, on each laptop.
> 
> Petria's test notes are attached.  She was my scribe.  Timestamps there
> are relative to the kernel clock of the unit under test.  No ntp or
> rdate.
> 
> Trac #595 and #596 raised for a couple of observations regarding
> iwconfig and battery capacity respectively.
> 
> (One laptop per ants nest nearly happened ... in a wheat stubble paddock
> with thistles and flies ... but the ants decided to abandon the laptop
> when I picked it up.)
> 
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-- 
Jim Gettys
One Laptop Per Child





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