Increasing Sensitivity (was Re: [MLB-WIRELESS] <PLUG> Cheap prices for wireless gear)

Clae clae at tpg.com.au
Thu May 22 07:22:19 EST 2003


At 11:36 PM +1000 21/5/03, rik wrote:
>there was cooling done with prism2.5 cards done about a year ago, it was
>shown not to cause that much diffrence, i will google a bit tommorow and try
>and find the artical

Considering thermal noise is proportional to absolute tempetature (ie 
distance from 0 Kelvin or -250-something Celcius), I can't see the 
few degrees you'll get out of a Peltier making any difference.

Try running liquid nitrogen through your enclosure :-)

>----- Original Message -----
>From: "John Dalton" <john.dalton at bigfoot.com>
>To: "Jason Brice" <Jason.Brice at kiandra.com>
>Cc: <melbwireless at wireless.org.au>
>Sent: Wednesday, May 21, 2003 11:27 PM
>Subject: Increasing Sensitivity (was Re: [MLB-WIRELESS] <PLUG> Cheap prices
>for wireless gear)
>
>
>>  On the subject, it would be an interesting
>>  experiment to strap a Peltier device to a WLAN
>>  card and see if freezing it lowers the
>>  noise floor, increasing its sensitivity.
>>  Might be useful for those who are into distance
>  > records?

-- 
"Our earth is degenerate in these latter days; bribery and corruption 
are common; children no longer obey their parents; and the end of the 
world is evidently approaching." -- Assyrian clay tablet 2800 B.C.

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