Using two radios will not subject the user/network to the
"Tropos-effect" throughput-halving as long as:
1. The two Orion channels are configured for either 5 MHz or 10 MHz
channel width. Configuring for 20 MHz channel width will result in them
"stepping on" each other and reducing throughput.
2. Separating the two Orion antenna systems far enough apart
(physically) to prevent one Orion transmitter from overloading and
desensitizing the other Orion receiver and thus reducing throughput.
That's it. Do the above and you could have a reasonably decent way of
distributing some backhaul capacity using 900 MHz.
NOTE: I always advise separating the backhaul network from the access
network - makes it easier to do throughput management. Simply sticking a
CPE off of an existing AP and using the CPE to feed another AP while the
first AP is serving throughput to end-users is (IMHO) a half-fast way to
design a reliable network.
Rick Smith wrote:
Yes, you're right, but I believe they RECOMMEND putting two radios at the site...
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jack Unger
Sent: Thursday, June 15, 2006 3:45 PM
To: WISPA General List
Subject: Re: [WISPA] Fw: Orion 900 MHz OFDM 22 Mbps
Remember that when a CPE (or any radio) is used as an AP to relay to other radios that we
really have a single-frequency "repeater" and the throughput capability will be
halved for each additional hop.
P.S. - If I start calling this throughput-halving effect "The Tropos-effect",
maybe I can motivate Tropos to add a second (non-2.4
GHz) radio to their product. :)
Rick Smith wrote:
$732 for each unit - cpe or AP - and the AP can serve up to 3 cpe's.
Supposedly, each CPE can also be an AP to 3 more...
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Marlon K. Schafer (509) 982-2181
Sent: Monday, June 12, 2006 2:59 PM
Subject: [WISPA] Fw: Orion 900 MHz OFDM 22 Mbps
Anyone know anything about these guys?????
(509) 982-2181 Equipment sales
(408) 907-6910 (Vonage) Consulting services
42846865 (icq) And I run my own wisp!
126.96.36.199 (net meeting)
----- Original Message -----
From: Wireless Interactive Comm., Inc.
To: List Member <mailto:[EMAIL PROTECTED]>
Sent: Tuesday, June 06, 2006 11:19 AM
Subject: Orion 900 MHz OFDM 22 Mbps
Home <http://rd.bcentral.com/?ID=4143437&s=187045> Company Info
<http://rd.bcentral.com/?ID=4143438&s=187045> How to Buy
THE COMPETITION DOESN'T STAND A CHANCE
ORION 900 gives you the option to expand your wireless infrastructure,
while at the same time providing your clients with up to 22 Mbps
effective throughput. The competition offers an average of less than 3
But what makes the ORION 900 truly a breakthrough radio, is that it is
equipped with built-in OFDM technology -- something no other 900 Mhz
radio on the market can claim -- so you can be sure to get signal
where you wouldn't normally expect.
A BACKHAUL SOLUTION
The diagram on the right shows just one of a few ways the ORION 900
can be used to enhance an infrastructure. It is shown as an Access
Point that can connect to up to 4 unique MAC addresses, including
another Access Point to even further extend the range of the wireless
To see other examples of how the ORION 900 can be incorporated in your
22 Mbps EFFECTIVE THROUGHPUT
UP TO 70 km RANGE
Site Map <http://rd.bcentral.com/?ID=4143440&s=187045> Contact
Info <http://rd.bcentral.com/?ID=4143434&s=187045> Total Solutions
Wireless Interactive Comm., Inc.
23112 Alcalde Drive, Suite C · Laguna Hills, California 92653 USA
Phone: +1 (949) 215-6277 · Fax: +1 (949) 215-6278
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Jack Unger ([EMAIL PROTECTED]) - President, Ask-Wi.Com, Inc.
Serving the License-Free Wireless Industry Since 1993
Author of the WISP Handbook - "Deploying License-Free Wireless WANs"
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