[MLB-WIRELESS] Antenna Orientation

[Matt Pearce]

Not sure if the question was properly asked so i'll slightly rephrase it.
If you had an area that was heavily populated by 2.4G wireless networks and
you couldnt get a link running becuase all the channels were used and all
are running with horizontal polarization.  If I decided to put up a PTP link
with someone else in that area say using a couple of 24dbi dishes and both
ends of the link had the dishes mounted vertically.  How would you go in
this instance ??

Hope thats a little clearer.

Matt.

----- Original Message -----
From: "evilbunny" <evilbunny at sydneywireless.com>
To: "Matt Pearce" <mattpearce at optusnet.com.au>
Cc: "melbourne wireless" <melbwireless at wireless.org.au>
Sent: Friday, December 27, 2002 1:38 PM
Subject: Re: [MLB-WIRELESS] Antenna Orientation


> Hello Matt,
>
> MP> Just a quick question about antenna's for those of you in the know.  I
> MP> realise that antenna's normally are polarised horizontaly or
vertically, so
> MP> in saying that if more people with PTP links using directonal
antenna's
> MP> turned them 90degree's would this mean you could effectively run 2
cards on
> MP> the same channel right next to each other but on differently polarized
> MP> antenna's because they would not interfere with each other ??  Would
this
> MP> also work for tipping the antenna onto a 45degree angle ??
>
> Turning the antenna 45 degrees = 3dBm loss, turning 90 degrees = 20dBm
> loss, so you can *IF* you have enough physical separation between them
> on the mast... or 2 directionals looking the other way etc etc etc,
> physical separation is the key though...
>
> --
> Best regards,
>  evilbunny                            mailto:evilbunny at sydneywireless.com
>
> The best kind of cat toy has a person on one end.
>
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