That raises a question that I have been wondering. Since your running
advantage APs and non-advantage SM's do you still get 14mbps throughput
on the AP but each subscriber can only receive 7mbps throughput. So your
delivering 14mbps throughput to your group of associations? Or since
your only running non-advantage sm's does the ap only deliver 7mbps
throughput to the entire group?

Kurt Fankhauser
WAVELINC
114 S. Walnut St.
Bucyrus, OH 44820
419-562-6405
www.wavelinc.com


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of G.Villarini
Sent: Wednesday, January 18, 2006 8:09 AM
To: 'WISPA General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna

Nop, just regular sm's

Gino A. Villarini, 
Aeronet Wireless Broadband Corp.
[EMAIL PROTECTED]
www.aeronetpr.com
787.273.4143


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Kurt Fankhauser
Sent: Wednesday, January 18, 2006 3:07 PM
To: 'WISPA General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna

Are you using advanced sm's too? 

Kurt Fankhauser
WAVELINC
114 S. Walnut St.
Bucyrus, OH 44820
419-562-6405
www.wavelinc.com


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of G.Villarini
Sent: Wednesday, January 18, 2006 7:09 AM
To: 'WISPA General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna

We have Advantage APs , so we get 14 Mbps out of the System

Gino A. Villarini, 
Aeronet Wireless Broadband Corp.
[EMAIL PROTECTED]
www.aeronetpr.com
787.273.4143


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Paul Hendry
Sent: Wednesday, January 18, 2006 11:09 AM
To: 'WISPA General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna

What throughput do you get on these things?

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of G.Villarini
Sent: 18 January 2006 14:50
To: 'WISPA General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna

Do some shopping and you can buy SM's for about $250 or less... start at
ebay, The new SM lite has a MRSP of $200 on 25 packs, usually you can
get a
17 - 20 % discount from most Distributors.  

Gino A. Villarini, 
Aeronet Wireless Broadband Corp.
[EMAIL PROTECTED]
www.aeronetpr.com
787.273.4143


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Paul Hendry
Sent: Wednesday, January 18, 2006 8:09 AM
To: 'WISPA General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna

Really?? What models? We only use 5.8GHz and when we looked at Canopy in
the
past they where expensive and had limited throughput. 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of G.Villarini
Sent: 18 January 2006 10:53
To: 'WISPA General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna

Canopy isn’t economic viable? Hmmm you can buy SM's @ $250 or less...
and
now the SM lite is out around $175.  It’s a tough call not to use
Canopy.

Gino A. Villarini, 
Aeronet Wireless Broadband Corp.
[EMAIL PROTECTED]
www.aeronetpr.com
787.273.4143


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Paul Hendry
Sent: Wednesday, January 18, 2006 5:43 AM
To: 'WISPA General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna

Bob, I hear what you're saying and have been through the figures a few
times
and even tried turning the power of the radio cards down to 1dB output
(still unable to run both links simultaneously) but this doesn't explain
why
others are able to use the same radio cards with similar antennas with
little to no problems.

Charles, unfortunately Canopy isn't a financially viable solution at
present. I have a rough idea of these 2 terms but I'll research them a
little deeper to see if they shed some light. Anything else that may
help on
my quest?


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Bob Moldashel
Sent: 18 January 2006 00:25
To: WISPA General List
Subject: Re: [WISPA] Multiple Radios on Single antenna

Ahhhhh......Lets do some math.......

Lets say the radio has a +20 dB output.  For this example there is no 
line loss.  The antenna is rated at 30dB x-pole isolation.  Here we
go...

+20 dB
-30dB xpole
=
-10 dB receive level. 

In my book that is high enough to kill any link of the same freq on the 
opposite polarity....No???

Add to that a radio that needs to Rx and Tx on and off and you should 
have receiver blocking....... 

-B-




Matt Liotta wrote:

> Depending on various factors, you should see at least 15db of 
> attenuation between polarizations on a dual-pol antenna. 
> Theoretically, you should see 20db. In any case, 15db is enough 
> attenuation even on the same channel to operate two links reliably.
>
> -Matt
>
> Jason Wallace wrote:
>
>> List,
>>
>> When antennas are separated by normal distances, they can only "see" 
>> each other electromagnetically (ie, radio waves).  However, when they

>> are close they will experience capacitive and inductive coupling.  
>> Dual pol antennas work fine when only receiving (as in those large 
>> satellite dishes from the 80's that used 90° pol changes between 
>> adjacent channels).  I think you will always have trouble overloading

>> the receiver when transmitting with this setup.
>
>
>


-- 
Bob Moldashel
Lakeland Communications, Inc.
Broadband Deployment Group
1350 Lincoln Avenue
Holbrook, New York 11741 USA
800-479-9195 Toll Free US & Canada
631-585-5558 Fax
516-551-1131 Cell

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