If you have already committed to that idea, then I can't really persuade
you. With the exception of Canopy and some of the other specialized
gear, just about everything else is 802.11 based in one way or another.
Karlnet/Terabeam, Trango and even the Alvarion VL is based on 802.11
chipsets with a fancy MAC in front of it.
FWIW, I know of quite a few people who have had better luck with Tranzeo
5.8 and StarOS units for backhauls and ptmp compared to non-802.11
systems like Canopy. Higher speeds and more flexibility when dealing
with interference. But if that doesn't meet your parameters, then that
is your prerogative.
Matt Larsen
[EMAIL PROTECTED]
Matt Liotta wrote:
The Tranzeo radios at least are 802.11, which we refuse to use for
fixed wireless.
-Matt
Matt Larsen - Lists wrote:
Matt,
I've talked to quite a few people who are looking at Tranzeo
CPE/StarOS APs for 5.3/5.8Ghz multipoint deployments and have had
good luck myself so far. The combination of StarOS AP units and
Tranzeo CPE units seems to work fairly well. Within a 5 mile radius,
you will probably be able to maintain 15-20meg of throughput and
40-50 subs per sector depending on the size of the pipes that you
deliver to the customers. StarOS can handle batch firmware uploads,
routing at the AP, bandwidth control at the AP, vlan tagging,
OSFP/RIP routing, DNS at the AP, QOS and packet shaping for VOIP and
other traffic and it also has great troubleshooting information
along with hooks into several of the open source monitoring and
traffic graphing systems. Another plus is that it will run on
several hardware combinations, so you can choose the type of
radio/sbc platform that best suits your needs. The Tranzeo CPE units
are inexpensive ($225-$300), easy to install and work great with StarOS.
If you go with an all StarOS system, my understanding is that the new
version (v3) will also have the ability to use 5mhz, 10mhz and 20mhz
channels and will be ready for 5.4Ghz with no need for additional
hardware changes. It also works in the 4.9Ghz public safety
spectrum. We provide the backhaul for several video feeds for the
local law enforcement on 4.9 - works great.
I think that is a combination worth considering.
Matt Larsen
[EMAIL PROTECTED]
Brad Larson wrote:
Matt, How much capacity do you need per 5.8 Ghz sector? Is this a
business
or residential rollout or both? How many subscribers per sector do
you want
to support? How large do you want to scale this network and is
managment,
batch firmware loads for radio updates, vlan tagging, voip support
important
to you? Brad
-----Original Message-----
From: Matt Liotta [mailto:[EMAIL PROTECTED]
Sent: Tuesday, January 03, 2006 7:02 PM
To: WISPA General List
Subject: [WISPA] 5.8Ghz Multi-point radios
We are looking to start deploying 5.8Ghz multi-point radios at some
of our sites. I am hoping some folks on this list can share
experiences and ideas on what radios might meet our needs. We have
experimented with Canopy and Trango, but would really like some
better choices. From a specification standpoint, Canopy general
meets our needs, but we don't like being constrained on the antenna.
We would like to use sectors bigger than 60 degrees and we would
like to use horizontal polarization. We don't want to use Trango for
no other reason than they can't work with distributors. We really
like the flexibility on many 802.11a-based radios and certainly the
price, but the contention aspects of the protocol and the perception
of Wi-Fi being a consumer grade technology stop us from going that
route.
Any thoughts from the list?
-Matt
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