[Testing] clarification about wirless indicator

James Cameron quozl at laptop.org
Wed Mar 24 19:56:58 EDT 2010


On both the XO-1 and the XO-1.5 there are two indicator LEDs on the left
of the front panel next to the screen rotate button.

Both indicator LEDs light to green only.

On XO-1 and XO-1.5, the left-most LED lights to indicate that the
wireless device is associated.

On XO-1 only, the right-most LED lights to indicate data flow via the
wireless connection.

On XO-1.5 only, the right-most LED does not light.  We have a ticket
open to remedy this; http://dev.laptop.org/ticket/9988 ... it will be an
indicator of data transfer on internal storage.

On Wed, Mar 24, 2010 at 05:23:52PM +0530, johan sahabandu wrote:
> Are the two antennas of laptops having any contact with wireless
> connection?

Yes, the antennas are a transducer that convert the radiofrequency
energy from the wireless device, into an electromagnetic field in the
air.

The antennas work best when vertical to the horizon.

There is no switch or sensing of the antenna rotation position by the
laptop.

There are no indicators on the antenna.  However, they visually indicate
polarisation.

When the wireless LED indicators flash, it is very likely that the
antennas are transmitting or receiving energy.  The reverse is not true;
non flashing indicator does not prove there is no energy transfer.

-- 
James Cameron
http://quozl.linux.org.au/


More information about the Testing mailing list