second rural range test

[James Cameron]

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.)

-- 
James Cameron    mailto:quozl at us.netrek.org     http://quozl.netrek.org/
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One Laptop Per Child (OLPC) Radio Range Testing

19/Dec/2006
7:30 - 8:30pm, just before to just after sunset.
Still, fine, hazy, slight cloud cover, comfortably warm, estimated 27 degrees C.

Waypoint 114 = Access Point, "Coomooroo" verandah.

Test A		Waypoint 115 = 100m East of Access Point.
		Laptop held at James' belt height,
		James facing West (toward Access Point),
		book mode, ears perpendicular to screen.
		
Test B		Waypoint 115 = 100m East of Access Point.
		Laptop held at James' belt height,
		James facing West (toward Access Point),
		book mode, ears stowed.		
		
Test C		Waypoint 115 = 100m East of Access Point.
		Laptop held at James' belt height,
		James facing North (perpendicular to Access Point),
		book mode, ears stowed.		
		
Test D		Waypoint 115 = 100m East of Access Point.
		Laptop held at James' belt height,
		James facing West (toward Access Point),
		laptop mode, ears vertical.

						
Test A	Q3	Test start 08:36:13	Test stop after one minute
	
Test B	Q3	Test failed (lost ping)

Test C	Q3	Test start 08:39:42	Test stop after one minute
		
Test D	Q3	Test start 08:41:40	Test stop after one minute


Test A	Q1	Test start 19:44:40	Test stop after one minute

Test B	Q1	Test failed (missing packet, timed out)

Test C	Q1	Test start 19:46:39	Test stop after one minute

Test D	Q1	Test start 19:47:56	Test stop after one minute


Test A	Q2	Test start 19:52:01	Test stop after one minute

Test B	Q2	Test failed (Ping loss, lost association)

Test C	Q2	Test failed (Very lossy, halting/starting)

Test D	Q2	Test start 19:55:42	Test stop after one minute


Test E		Waypoint 116 = 200m East of Access Point.
		Laptop held at James' belt height,
		James facing West (toward Access Point),
		laptop mode, ears vertical.

Test E	Q1	Test start 20:01:24	Test stop after one minute

Test E	Q2	Test start 20:03:32	Test stop after one minute

Test E	Q3	Test start 09:04:33	Test stop after one minute


Test F		Waypoint 116 = 200m East of Access Point.
		Laptop held at James' belt height,
		James facing West (toward Access Point),
		book mode, ears perpendicular to screen.
		
Test F	Q3	Test start 09:05:57	Test stop after one minute

Test F	Q2	Test start 20:08:18	Test stop after one minute

Test F	Q1	Test start 20:09:21	Test stop after one minute


Test G		20m north of Waypoint 117 (The Glen intersection)
		Laptop held at James' chest/shoulder height,
		James facing South (perpendicular to Access Point),
		no other laptop within 20m radius,
		laptop mode, screen vertical, ears vertical.
		
Test G	Q3	Test start 009:26:01	Test end 09:26:41 (lost signal)

Note	Q2	Gained connection 20:29:17 (5m north of Waypoint 117 (The Glen intersection))

Test G	Q2	Test start 20:30:23	Test stop after one minute (very successful)

Test G	Q1	Test failed (would not associate/reconnect)
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