-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Tom DeReggi
Sent: 17 January 2006 18:08
To: WISPA General List
Subject: Re: [WISPA] Multiple Radios on Single antenna
I'm not saying there isn;t a benefit now and then sharing a Dual pol
antenna
between two
DeReggi
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Tom DeReggi
Sent: 17 January 2006 18:08
To: WISPA General List
Subject: Re: [WISPA] Multiple Radios on Single antenna
I'm not saying there isn;t a benefit now and then sharing a Dual pol
] [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
Ah..Lets do some math...
Lets say the radio has a +20 dB output. For this example there is no
line loss. The antenna
General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna
A tightly notched cavity filter (but then, you lose system flexibility in
other ways)
Jeez, why am I still awake (and why am I responding to listserv emails at
this hour?)
-Charles
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
: RE: [WISPA] Multiple Radios on Single antenna
Canopy isnt economic viable? Hmmm you can buy SM's @ $250 or less... and
now the SM lite is out around $175. Its a tough call not to use Canopy.
Gino A. Villarini,
Aeronet Wireless Broadband Corp.
[EMAIL PROTECTED]
www.aeronetpr.com
787.273.4143
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
Ah..Lets do some math...
Lets say the radio has a +20 dB output. For this example there is no
line loss
-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
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
, 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
.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Bob Moldashel
Sent: 18 January 2006 13:07
To: WISPA General List
Subject: Re: [WISPA] Multiple Radios on Single antenna
Paul,
You may have a bad feed horn or you may have a bad radio. I would
consider both before
'
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
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
-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Bob Moldashel
Sent: 16 January 2006 23:40
To: WISPA General List
Subject: Re: [WISPA] Multiple Radios on Single antenna
Hey Paul,
Yes, that is exactly what I am doing. But both radios are 5.7-5.8 range
without issues.
I can't answer
Paul Hendry wrote:
Yep. 2 separate WRAP boards in 2 separate mini-box metal enclosures. I have
had a look at the spec sheet for the RadioWaves antenna's but they don't
mention any isolation between the horizontal and vertical N-Type ports. Have
you used these particular antennas before?
I
- Fixed Wireless Broadband
- Original Message -
From: Paul Hendry [EMAIL PROTECTED]
To: 'WISPA General List' wireless@wispa.org
Sent: Monday, January 16, 2006 2:23 PM
Subject: RE: [WISPA] Multiple Radios on Single antenna
Bob, are you saying that you are running 2 simultaneous links
Subject: Re: [WISPA] Multiple Radios on Single antenna
On a side note, for general info, not necessarilly applicable to the task in
question
Just because an antenna is Dual polarity, does not mean that both polarities
can be used at the same time by seperate signals. The wiring/circuitry (what
Wireless, Inc
IntAirNet- Fixed Wireless Broadband
- Original Message -
From: Chadd Thompson [EMAIL PROTECTED]
To: WISPA General List wireless@wispa.org
Sent: Tuesday, January 17, 2006 10:30 AM
Subject: RE: [WISPA] Multiple Radios on Single antenna
Who sells dual band antennas? That could save
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
] On
Behalf Of Tom DeReggi
Sent: 17 January 2006 18:08
To: WISPA General List
Subject: Re: [WISPA] Multiple Radios on Single antenna
I'm not saying there isn;t a benefit now and then sharing a Dual pol antenna
between two freqs, otherwise nobody would make them. BUt
We have found most tower
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
Sorry but this whole thread is going sour fast.
1. Dual Polarity antennas work for transmit and receive. They are not TX
only or RX only in configuration.
2. The normal isolation between vertical polarity and horizontal
polarity can range from 10-30 dB depending on the operating
Bob,
Item 4 is what I am talking about. If your radios have very good
adjacent channel rejection, are not transmitting at high levels, and the
antenna has minimized any of the coupling I mentioned, then they may be
able to listen through the noise from the other transmitter.
A lot of this
links running through these parabolics?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Bob Moldashel
Sent: 17 January 2006 18:51
To: WISPA General List
Subject: Re: [WISPA] Multiple Radios on Single antenna
Sorry but this whole thread is going sour fast
To: 'WISPA General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna
Just checked the specs for the RadioWaves antennas that I'm having the
problems with and see that they have 28dB X-Pol. Rejection would this
suggest that the circuitry controlling the 2 feeds are separate? If so
-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Paul Hendry
Sent: Tuesday, January 17, 2006 2:59 PM
To: 'WISPA General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna
Reading further through the RadioWaves docs it clearly states that each
polarization is isolated from
, 2006 1:14 PM
To: 'WISPA General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna
Hi Paul,
I haven't been paying attention to this thread close enough to know your
exact situation, but it is worth noting that there are always extrra
headaches to deal with when trying to jerry-rig
-918-4340 VoIP
www.oibw.net
[EMAIL PROTECTED]
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Kurt Fankhauser
Sent: Tuesday, January 17, 2006 8:09 PM
To: 'WISPA General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna
Charles I hope we
Ah..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
] On
Behalf Of Charles Wu
Sent: Tuesday, January 17, 2006 6:55 PM
To: 'WISPA General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna
Hi,
I would recommend that you do some research on the terms dynamic range
and
front-end compression as it relates to your particular hardware /
radio
platform
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Kurt Fankhauser
Sent: Wednesday, January 18, 2006 3:12 AM
To: 'WISPA General List'
Subject: RE: [WISPA] Multiple Radios on Single antenna
Charles,
What equipment did you use to build up your WISP? Also what
January 2006 23:53
To: WISPA General List
Subject: Re: [WISPA] Multiple Radios on Single antenna
I should revise that to say we do it on dual polarity antennas. Not 2
radios on one antenna
-B-
Bob Moldashel wrote:
Paul,
We do this all the time. Explain what model radios and how you
.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Bob Moldashel
Sent: 15 January 2006 23:53
To: WISPA General List
Subject: Re: [WISPA] Multiple Radios on Single antenna
I should revise that to say we do it on dual polarity antennas. Not 2
radios on one antenna
:* RE: [WISPA] Multiple Radios on Single antenna
Radios are WRAP/CM9's with StarOS on RadioWaves SPD2-5.2NS. Is there
anything special you do/use to get this to work? Only things I can
see that
would help are band pass filters.
-Original Message-
From: [EMAIL PROTECTED
Paul,
We do this all the time. Explain what model radios and how you are
doing this?? I'll try to help.
-B-
Paul Hendry wrote:
Has anyone successfully installed more than 1 radio on a single
antenna with virtually no interference between links? We had
originally planned to run 2
35 matches
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