I think what you're looking at with the dual antenna mounts is a
diversity antenna.  It won't work too well with one hooked up to the
pringles can and the other hooked up to a regular rubber duck.
-Ian.
On Tuesday, October 1, 2002, at 01:04 PM, Eugen Leitl wrote:
>
> 1) reinforced concrete shields like the dickens; wood lots less so
> 2) line of sight is best (o'really?)
> 3) if you want to boost range, use directional aerials, not omnis
>
> Direct line of sight (no trees, no nothing) can give you ~10 km with
> well
> aligned directional aerials (and, say, no sleet, no locusts, nor rain
> of
> blood). If you want to fan out afterwards, use a bridge of a
> directional
> coupling to an omni. 802.11a should shield within building lots more
> than
> 802.11b, ditto line of sight with lots of precipitation inbetween.
>
> On Tue, 1 Oct 2002, Damien Morton wrote:
>
>> I just bought a LinkSys BEFW1154v2 Access Point Router for $150
>> (http://www.linksys.com/products/product.asp?grid=22&prid=415). Im
>> doing
>> some dev work on a Symbol PocketPC device with built in 802.11b.
>>
>> In this 600 sq ft pre-war New York apartment it goes through 2 or 3
>> walls, into the hallway and halfway down the first flight of stairs
>> before it loses contact with the base station. That's less than 50 ft.
>> Inside the apartment, it works just fine.
>>
>> I just did some further testing - through 2 brick walls the range is
>> about 25 feet. The signal also goes through the roof pretty much
>> unimpeded.
>>
>> That said, the Symbol device doesn't have an antenna to speak of, and
>> I
>> havent done any tweaking to try to extend the range.
>>
>> The Linksys unit has two antenna mounts - you could leave one as an
>> omni
>> antenna while hooking up a directional antenna to the other.
>>
>> You might find that you have to use several access points and/or
>> repeaters to get the coverage you want.

from localhost (jalapeno [127.0.0.1])
	by jmason.org (Postfix) with ESMTP id 4E40D16F1B
	for <jm@localhost>; Wed,  2 Oct 2002 11:47:39 +0100 (IST)
from jalapeno [127.0.0.1]
	by localhost with IMAP (fetchmail-5.9.0)
	for jm@localhost (single-drop); Wed, 02 Oct 2002 11:47:39 +0100 (IST)
from lair.xent.com (localhost [127.0.0.1]) by xent.com (Postfix)
    with ESMTP id 792772940FB; Tue,  1 Oct 2002 20:31:02 -0700 (PDT)
from rwcrmhc51.attbi.com (rwcrmhc51.attbi.com [204.127.198.38])
    by xent.com (Postfix) with ESMTP id 3166629409C for <fork@xent.com>;
    Tue,  1 Oct 2002 20:30:56 -0700 (PDT)
From fork-admin@xent.com  Wed Oct  2 11:48:05 2002