Tom,
What you are "probably" seeing is the GPS sync antenna if it's on a cell
phone tower. That is what enables them to reuse the same spectrum on all
their towers.
Mac
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
> Behalf Of Tom Sharples
> Sent: Wednes
That's an interesting point to discuss.
WiMax profiles AFAIK go up to 64QAM
So does WiFi 802.11a, g, n
Orthogon AFAIK goes to higher order modulation, but are for P2P links where
SNR is (or can be) higher - at least with high gain antennas.
AFAIK No-one seems to be proposing more than 64QAM for P2M
>From a spectral efficiency standpoint, WiMax is better than anything but
Orthogon. I'm not saying to do mobile stuff, but for PtMP fixed wireless
that we do now. More spectral efficiency is always better for the industry.
--
Mike Hammett
Intelligent Computing Solutions
http://www.ics
Mike,
My personal opinion is... in 5Ghz, Wimax is not the ideal solution.
In 5.3-4 G, the allowable power is not high enough.
In 5.8G, there is to much noise, from traditional legacy gear.
We proved that in our trials 4 years ago, beta testing Aperto, pre-Wimax.
It wasn't affordable to deploy a sm
I hardly think WIMax is a joke.
I agree WiMax is no better substitution than What WISPs are already doing.
I'd rathewr have the higher throughput and lower cost of unlicenced
proprietary gear. But it is no joke.
Expecially not for those few players that do have legitimate Licensed
spectrum.
WiMa
Well this is what I've been doing. For the last couple years I have had
multiple secorized sites with antennas mounted at the same vertical level
with only 1 foot of horizontal separation and using channels 1,4,7 on
802.11b I am able to get 4mbps to the clients and I am experiencing no
problems wha
How much does second order improve over none?
Cost differences between none, second, and fourth?
--
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
- Original Message -
From: "Patrick Leary" <[EMAIL PROTECTED]>
To: "WISPA General List"
Sent: Tuesday, April
Travis,
Just a few notes on the economics of this (and, why I think single
play providers are in trouble):
The ARPU for triple play is generally considerably above $100 per
month, most figures put this around $160 per month on an industry
basis. Typically, churn is considerably lower as well for
Who have you been getting information\pricing from on the Aperto and Airspan
products?
--
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
- Original Message -
From: "Jeff Booher" <[EMAIL PROTECTED]>
To: "WISPA General List"
Sent: Wednesday, April 23, 2008 1
Who have you been getting information\pricing from on the Aperto and Airspan
products?
--
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
- Original Message -
From: "Jeff Booher" <[EMAIL PROTECTED]>
To: "WISPA General List"
Sent: Wednesday, April 23, 2008 1
Would I be correct, then, that the Alvarion solutions are the Mercedes of
the WiMax world?
I know I've asked you before, but is 5 GHz on Alvarion's timeline for 802.16
based devices?
--
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
- Original Message -
F
Related question - I've noticed that many multi-sector cell towers have what
looks like a single vertical bar located midway between adjacent sectors. I
assume this is some sort of passive tuned element that's been set up to
reduce inter-antenna coupling and interference, but I have been unable
comments inline.
On Apr 22, 2008, at 12:17 PM, Mike Hammett wrote:
> Anyone doing a 20 MHz channel?
Not to my knowedge.
>
>
> Would that be enough capacity to allow for typical oversubscription
> on say a
> 10 meg client?
Certainly.
>
>
> What does it cost to get the first AP up ($5k, $15k, $
Ross,
In general, physically separate them as much as possible. You do not
want the transmitter signal from one sector to overload the receivers of
the other sectors. That is a form of self-interference. If you happen to
have a copy of my book handy, you can read more about antenna separation
Separation is always a good thing. The lower the frequency, the more
separation needed.
With our 900mhz AP's, we do at least 10 feet of vertical and 5 feet of
horizontal.
Travis
Microserv
Ross Cornett wrote:
How long have you done this and have you had any issues with anything at
all...
How long have you done this and have you had any issues with anything at
all... All Documentation tells us to seperate them 10 or so due to the front
to back ratio?
Ross
_
Galatians 6:7-8: "Be no
are they the tranzeo sectors? I have the same setup, 16db HPOL and i have
them all at the same level on the tip of a Rohn SSV self supporter. Since
they stand off a little from the tower i can climb through them as long as I
am careful where i step.
--
Kurt Fankhauser
WAVELINC
P.O. Box 126
Bucyru
Anyone know for a fact if it is worthy to seperate sector antennas on the same
tower. Using 2.4 H Pol 16 db We are readying our 31st tower location and I
have been asked why do we seperate the sectors . Besides the reasonable fact
that if you place 3 sectors on a 3 sided tower at the exact sa
OK, let me put it this way; how old is the Ethernet technology/protocol you
are using?
How old is the 802 Ethernet spec?
GPON G.984 compliant equipment is the same as IEEE 802 complaint equipment.
A spec is a spec.
The G.984 spec was ratified 5 years ago.
How old is g.707 SONET? 15 years old? OC-
We think so now, but is something that came out 5 years ago still good
enough? Maybe, though I'm leaning towards no. 10 years? No way.
Now, yes, a class 5 would be fine because phone technology doesn't change
nearly as much as data connectivity, especially with the Web 2.0 boom we're
on the
I have ONTs that are 5 years old now out in the field and are doing fine.
I have class 5 central office switchs deployed that are closer to 10 years
old that are still current technology.
What is going to get out of date with a GPON ONT? 2.4 Gbps is plenty of
bandwidth, don't you think?
- O
The fiber would be good for 20 years and is the most costly part, but the
other pieces wouldn't be good for 20 years... I'd say only 5 years on
active components. They may technically work, but they'd be so outdated by
then you wouldn't want them anymore.
--
Mike Hammett
Intelligent
http://lessig.org/blog/2008/04/testifying_fcc_stanford.html
Interesting presentation. On Net Neutrality.
WISPA Wants You! Join today!
http://signup.wispa.org/
-
Panaway.
GPON
- Original Message -
From: "Joe Miller" <[EMAIL PROTECTED]>
To: "WISPA General List"
Sent: Wednesday, April 23, 2008 8:42 AM
Subject: Re: [WISPA] Future
> Chuck,
>
> I'm currently working a proposal for FTTH for a 654
> unit developement. I would like to know where you are
Highly variable. TV content is costly. Everyone has different costs for
transport. But if you are delivering symmetric 10-100 mbps and the TV and
phone are a good value, you will probably lock in the customer. On the telco
side of the house, we try to make the system pay for itself over a 20
Chuck,
I'm currently working a proposal for FTTH for a 654
unit developement. I would like to know where you are
getting these numbers on the equipment. I had one
company give me a price of $3,500.00 per unit, and
another for $2,800.00 per unit. Please let us know
where we can find a reasonable co
A couple quick things:
(1) You don't necessarily have them for life. People can change to DISH
and a wireless provider and do VoIP over that. Especially if they can
save $5/month, a lot of people will change. DISH is $35/month for
decent programming. Wireless is another $40/month and VoIP can
Hello,
Anyone who can service this location ?
1480 Oakridge Farms Road
Osteen, Fl 32764
Please contact me off list.
Thanks.
Faisal Imtiaz
SnappyDSL.net
WISPA Wants You! Join today!
http://signup.wispa.org/
---
FTTH ONT pricing (the unit on the house) keeps falling. They are about $400
now.
You can put in fiber for $1-2/foot (if you have a clear ROW).
The CO end is about $50K/terminal that is capable of serving thousands.
I don't know what the pro-rata single fiber COT card is, but I think they
are are
I wonder if it also works well as WiMax-blocking paint ...
==
Stephen Patrick
Cablefree Solutions Ltd
Web:www.cablefreesolutions.com
==
-Original Message-
From: Kurt Fankhauser [mailto:[EMAIL PROTECTED]
Sent
The Canopy SM does this ...
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 Dennis Burgess - LinkTechs.net
Sent: Wednesday, April 23, 2008 9:44 AM
And what do you use to control that bandwidth?
Chuck McCown wrote:
> We sell 10.2 Mbps burst service. And most of them actually get that speed.
> If they start streaming or downloading a large file, we throttle them down.
> Most are at 768.
> When the stream or download stops, they go back to w
Surprised no one has posted this before. Looks like an old article.
http://tech.yahoo.com/blogs/hughes/10031/wi-fi-blocking-paint
WISPA Wants You! Join today!
http://signup.wispa.org/
How could anyone ever get mad at you Marlon?!?! :-)
Jeff
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Marlon K. Schafer
Sent: Wednesday, April 23, 2008 12:44 AM
To: WISPA General List
Subject: Re: [WISPA] Future
I just got back a customer that left
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