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The MaxRad sector is certified I believe. You
add reflectors to make it 45, 60, 90, 120*
JH
----- Original Message -----
Sent: Saturday, November 01, 2003 4:19
PM
Subject: RE: [smartBridges] Omni antenna
coverage
Too bad Smartbridges
doesn�t have any FCC certified 120 or 180 degree sectors . . .
<smartbridges> HINT, HINT
-----Original
Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On
Behalf Of Derek Breiland
Sent: Saturday, November 01, 2003 6:08
PM
To: [EMAIL PROTECTED]
Subject: Re: [smartBridges] Omni antenna
coverage
What
manufactuer and model of 100 degree sector are you using? Using
Smartbridges APPO's?
-----
Original Message -----
Sent: Saturday,
November 01, 2003 1:02 PM
Subject: RE:
[smartBridges] Omni antenna coverage
Certainly you do
not get to add the gain in one radio. When you put the
sectors together your total output in 360 degree coverage area is
24dbi. This is not combined in anyway it is simply what you get when
you look at how many dbi's you have to cover the area that is
intended.
I have
2 190 degree sectors back to back separated by about 5 ft Horizontally on a
water tower(200ft). One radio on channel 1 and the other on channel
11. This works great for me and give me a coverage area of up to 15
miles without an amp. I plan to introduce an amp which will most
likely increase the coverage by about 5 miles or so in open
space.
-----Original
Message-----
From: Jason
Baugher [mailto:[EMAIL PROTECTED]On Behalf Of Jason
Baugher
Sent: Saturday,
November 01, 2003 1:42 PM
To:
[EMAIL PROTECTED]
Subject: RE: [smartBridges] Omni
antenna coverage
Possibly, but the assumption is
that with 2 sectors, each sector is on a separate radio. Therefore
you don't get to add their gains together.
As far
as the mechanical downtilt on the omni, yes, you can do that, but why
would you want to, unless you are in the unique position of being on the
side of a mountain with people above and below you on the
slope.
-----Original Message-----
From: Rudolph Worrell
[mailto:[EMAIL PROTECTED]
Sent: Fri 10/31/2003 4:48 PM
To:
[EMAIL PROTECTED]
Cc:
Subject: RE: [smartBridges] Omni
antenna coverage
Yes! 2 190
degree sector gives you 380 overlapping coverage. 12dbi on one
side and 12dbi on the other = 24dBi overall.
You can always
tilt an antenna to create a down tilt. With an omni you would lose
coverage on the side you tilt away from.
-----Original
Message-----
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]On Behalf Of Jason
Baugher
Sent: Friday,
October 31, 2003 5:35 PM
To:
[EMAIL PROTECTED]
Subject: RE: [smartBridges] Omni
antenna coverage
2 180 deg
12dBi sectors combine to make 24dBi in 360
deg?
Mechanical
downtilt on an omni?
Maybe my
brain is just fried, but something doesn't add up
here.
Jason
Baugher
-----Original
Message-----
From:
Rudolph Worrell [mailto:[EMAIL PROTECTED]
Sent: Friday, October 31, 2003
4:26 PM
To:
[EMAIL PROTECTED]
Subject: RE: [smartBridges]
Omni antenna coverage
I only use
Omni's at repeater sites with low number of clients. I use 190
degree sectors for all serious connections. 12dbi in 180 or
12dbi in 360. Well I chose the 12 dbi in 180 each
therefore giving me 24 dbi coverage for 360
degrees.
On your
Omnis you should get them with a 3 degree elec downtilt or use a
mechanical downtilt. Electrical is
better!
-----Original
Message-----
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]On Behalf Of Rob
Cleminson
Sent:
Friday, October 31, 2003 5:13 PM
To:
[EMAIL PROTECTED]
Subject: RE: [smartBridges]
Omni antenna coverage
I too am
running with a 12dbi Omni at about 150� - customers at about
2-4km get a good signal but the closer you get the worse the
signal gets � I am about to swap out and try a 9dbi Omni to see if
the RF pattern improves for the clients that are closer. Failing
this I will chuck the omni�s and use sectored antenna�s
Rob
-----Original
Message-----
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Ian
Ellison
Sent: 31
October 2003 14:57
To:
[EMAIL PROTECTED]
Subject: Re: [smartBridges]
Omni antenna coverage
I am currently running airPointPro Outdoor
units with Comet GP24-3 Omni's, which is a 12 db antenna. I
am servicing customers as far as 5 miles away with sufficient
results. However, the equipment is about 150' above ground
level which im sure helps. Good
luck.
Ian
Derek Breiland wrote:
Up to this point I
have been running off of one tower with 3 sectors. I am
looking at putting an addtional AP up about 6 miles from this
tower to penetrate into a community of homes that will otherwise
be difficult to cover due to the number of obstructions not to
mention their elevation on the map leaves a little to be
desired. It will also enable me to install a less expensive
CPE at the customer site if I can bring the AP closer to the
customer making the service a bit of an easier
sell.
I want to utilize an
omni antenna in this area. I have not yet decided what to
backhaul with yet but I am considering an APPO to the new XO2
at the remote. I can use one radio on the XO2 for the
backhaul on one channel and the other radio for the access to the
customers. I am not a big fan of repeaters unless absolutley
necessary. It seems that most complaints on this site have
the word "repeater" in the paragraph so I will try and stay away
from it.
My
question is to anyone currently
working with onmi antennes on an AP. What ranges can I
expect for the various dB omni antennas? 9dB seems small to
me, 12dB is maybe the ticket, 15db - way overkill? I do not
want the pattern to get too large to cause problems with my main
tower. I am looking at trying to get out no more than 3
miles for the AP. The AP and omni will be mounted on a
40'-50' existing tower. Also has anyone had better results
with one manufacturer over the other with the same dB
antenna?
Any suggestions are
greatly appreciated. I will be doing more and more of this
so I would like to get it right the first time based on others
experiences in already doing
it.
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