Yeppers, that's about what I was thinking.
It really depends on the rec. signal that you need though.
Also, how about putting the antenna inside something that doesn't look like
an antenna?
marlon
----- Original Message -----
From: "Mark Koskenmaki" <[EMAIL PROTECTED]>
To: "WISPA General List" <wireless@wispa.org>
Sent: Saturday, April 21, 2007 6:41 PM
Subject: Re: [WISPA] 5GHz Amps
I don't know what equiopment you use... but... here's a scenario...
20 dbm radios... 15 db panel on one side and a 32 db solid dish on the
other. At 15 miles, you should have a -68 signal. (Araya's link
calculator
says this) You're WELL within the P2P eirp rules for 5.8, and at -68
you
should be able to use a star-os or mikrotik or other similar based link at
around 36Meg data rate.
My stuff will stay pretty much at 54meg data rate at a -68, and even
serious
weather fade should keep you at 24Meg or above.
Workable? pacwireless sells the solid 32db dish for 270 online.
I sometimes use Compex 23 dbm a/b/g radios, for the power at 5 ghz, and
they
cost what I used to pay for CM-9's.
----- Original Message -----
From: "Mark Nash" <[EMAIL PROTECTED]>
To: "WISPA General List" <wireless@wispa.org>
Sent: Saturday, April 21, 2007 4:28 PM
Subject: [WISPA] 5GHz Amps
I'm needing to do a 14-mile link at 5.8GHz. I will have to use a
15"-or-so flat panel antenna due to building owner's asthetics
requirements.
On this 8-story building, I'll mount to the side of the masonry, then I'll
have about 25 feet of LMR-400 from the antenna to a weatherproof enclosure
with 110v power.
On the other side I'll be 100' up on a tower on a hilltop, and I can use
a
higher-gain antenna.
I believe I'll have to use an amplifier to achieve this.
Soo...
A) Am I incorrect about this?
B) If I'm correct, what 5GHz amps have you found to be effective?
C) Opinions on using regular or bi-directional amps?
Mark Nash
Network Engineer
UnwiredOnline.Net
350 Holly Street
Junction City, OR 97448
http://www.uwol.net
541-998-5555
541-998-5599 fax
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