These are silos:
http://www.plant.uoguelph.ca/performance_recommendations/ofcc/pub/SILO.htg/silo2.gif
The round things are bins and the center is a grain leg aka bucket elevator:
http://www.grainbinsupply.com/images/bins.jpg
-----
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
----- Original Message -----
From: "ralphlists" <[EMAIL PROTECTED]>
To: "'WISPA General List'" <wireless@wispa.org>
Sent: Wednesday, January 02, 2008 3:56 PM
Subject: RE: [WISPA] brain cramp, can someone jog my memory?
Thanks.
I don't understand it, but I did it 3 times. You can do a lot with line of
sight. 11 miles on 2.4 is never a problem for us when we have it.
It is hard for me to visualize your terrain or what a grain leg even is,
but
I guess it must be like a silo or something.
Ralph
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of John Valenti
Sent: Wednesday, January 02, 2008 4:45 PM
To: WISPA General List
Subject: Re: [WISPA] brain cramp, can someone jog my memory?
Wow, thank you!
(really meant to send that message directly to you, but now the list
can see your plots, too)
It is flat here, but the trees are the problem for RF.
Do I understand the last plot correctly: that ignoring trees, a
2.4GHz signal would work for ~12 miles? Amazing.
I feel lucky when I can get a 2.4 customer connected at better than
-80, and they are usually within a mile of a grain leg.
On December 29, at 1:54 AM December 29, ralphlists wrote:
Went ahead and did it.
You were right. Without considering trees, a 26 meter high tower
(grain
leg) on each end would do it.
I used a 200 mw radio and a 23 dBi panel antenna (like the
Deliberant 1A23
self contained radio).
Of course the Alvarion units would be the choice if you had the $$.
See the results at
http://brightlan.net/test.jpg Plot over Mapquest
http://brightlan.net/test1.jpg Plot over Google Maps
http://brightlan.net/test2.jpg Your grain leg with a 2.4
GHz 5.5
dBi omni
Just a quick demo of some of the power of Radiomobile
BTW- I was amazed at what you flatlanders can do on 2.4!
----------------------------------------------------------------------------
----
WISPA Wants You! Join today!
http://signup.wispa.org/
----------------------------------------------------------------------------
----
WISPA Wireless List: wireless@wispa.org
Subscribe/Unsubscribe:
http://lists.wispa.org/mailman/listinfo/wireless
Archives: http://lists.wispa.org/pipermail/wireless/
--------------------------------------------------------------------------------
WISPA Wants You! Join today!
http://signup.wispa.org/
--------------------------------------------------------------------------------
WISPA Wireless List: wireless@wispa.org
Subscribe/Unsubscribe:
http://lists.wispa.org/mailman/listinfo/wireless
Archives: http://lists.wispa.org/pipermail/wireless/
--------------------------------------------------------------------------------
WISPA Wants You! Join today!
http://signup.wispa.org/
--------------------------------------------------------------------------------
WISPA Wireless List: wireless@wispa.org
Subscribe/Unsubscribe:
http://lists.wispa.org/mailman/listinfo/wireless
Archives: http://lists.wispa.org/pipermail/wireless/
