Hmmm. Would you want to change out 60ish customers?
Will canopy go 17+ miles?
Will canopy NOT interfere with all of the other systems in the area?
Canopy works well, but it's not always the solution.
What I need to find are wifi radios that have good rx and tx properties. I
also need to find some better hpol sectors.
marlon
----- Original Message -----
From: "Gino Villarini" <[EMAIL PROTECTED]>
To: "WISPA General List" <wireless@wispa.org>
Sent: Thursday, July 26, 2007 3:17 AM
Subject: RE: [WISPA] self inflicted interference
What you need is Canopy
Gino A. Villarini
[EMAIL PROTECTED]
Aeronet Wireless Broadband Corp.
tel 787.273.4143 fax 787.273.4145
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Marlon K. Schafer
Sent: Thursday, July 26, 2007 12:01 AM
To: WISPA General List
Cc: [EMAIL PROTECTED]
Subject: Re: [WISPA] self inflicted interference
two different netgear switches.
Using my laptop at the tower things always work as expected. Just when
the
customers are further away (lower signal levels) causes the problems.
I've
moved things further apart and the system is running better than it ever
has. But it should still be better......
What I need are better radios. Something with better oob tx and rx
stats.
marlon
----- Original Message -----
From: "D. Ryan Spott" <[EMAIL PROTECTED]>
To: "WISPA General List" <wireless@wispa.org>
Cc: <[EMAIL PROTECTED]>
Sent: Tuesday, July 24, 2007 5:13 PM
Subject: Re: [WISPA] self inflicted interference
Marlon,
How are these APs hooked to each other? If you are using a hub, get a
switch. If it is a switch, get a different switch. I have had this
happen
on 3 of my repeater sites.
ryan
On Jul 24, 2007, at 8:09 AM, Marlon K. Schafer wrote:
Hi All,
I just completely rebuilt a tower site. It had inconsistent speeds
and
I'd hit the point that I normally change things around.
When I hit 50 people to a tower I'll sectorize it.
On this tower I had an omni at about 25' (the hill is 700 feet over
the
valley) and a 15dB integrated Tranzeo ap at about 15'.
Omni was vertical, sector was horizontal.
I rented a manlift and put an hpol maxrad wisp series 120*
adjustable
beam sector at about 45', a vertical at 37ish and another horizontal
at
about 30. All antennas are also 6 to 8' horizontally separated.
Each on
a standoff attached to the different legs of the tower.
All antennas are fed with lmr600 and the radios are right beside
each
other at the base of the tower (I'm too chicken to climb so the
radios
stay where I can get to them).
Here's my problem, with all of the radios on and transmitting the
speeds
are worse than before for most customers.
The sector to the west has 2 customers and sits at the 30' level and
is
hpol. Those two customers get around 4 megs down and up.
The sector to the north east is vertical and a customer at 10ish
miles
gets .7 to 1.5 megs down and .25 to .5 up.
The sector to the south east is hpol and sits at the 45 or 50'
level.
Customers get .6 to 1.5 down and .1 to .5 up.
Unplug any two radios and speeds hit the 2 to 3 meg, sometimes 4 meg
speed for all customers on that system. Plug the other one back in
and
speeds drop back down.
The hpol maxrad antennas have a 30dB fb ratio. I've not yet looked
at
the patterns lately, as I recall they are pretty good though. APs
are
Teletronics 11-152s with metal cases.
I've had GREAT luck with ALL of these components at other sites.
Just
never all at the same time and place like this. As most of you
know,
most of my coverage areas are VERY low density so I tend to use a
lot of
omni antennas, or am mounted on hills that have no coverage behind
them
so only one or two sectors are used.
The two systems that interfere with each other the most are north
east
and south east. One's hpol one's vpol. They are on channel 1 and
9.
To get things working MUCH better than they were before, I've
replaced
the north east and south east radios with Tranzeo ap's. I also
moved
the southeast antenna (actually put up a new one) back down to the
roof
of the shack. It's also a Tranzeo ap now. It, however, now sits in
front of, though much lower than the west antenna, both are hpol
though.
If the channels are anywhere near the same for west and southeast
the
folks to the west get really slow speeds.
I also moved the antennas on the tower further apart, they are now
at
least 5 or 6 feet apart from each other. I don't know how much that
helped as I changed one of the radios to a Tranzeo at that same
time.
This helped but didn't fix the speed and consistency problem.
That's
when I moved the south east system back down where I could more
easily
get to it.
Things still aren't as consistent as they need to be. If one system
gets busy the others slow down. Any ideas? My first thought is to
try
a REALLY high end access point or two. You'd think those systems
could
sit side beside when using channels so far apart from each other.
It's
like the new radios are soooooo sensitive that they will pick up the
noise close to them no matter what. OR, more likely, that the new,
cheaper, gear has really really sensitive radios but with rotten
side
band isolation on both tx and rx.
Any ideas? Radios/antennas to try? Changing the radios is easy.
Getting a manlift back out to change the antennas will suck big time
(due to the stand offs it would be too hard/dangerous to change
antennas
from the tower).
thanks,
marlon
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