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?
-Original Message-
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
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
ever its called for an antenna) may be shared by
Marlon,
thanks wll take tha into consideration.
On 1/17/06, Marlon K. Schafer [EMAIL PROTECTED] wrote:
That's a LOT of customers in a very small area.
Use sector antennas, no omni and NO amps
Keep things low to the ground.
Work your channel plans very carefully.
marlon
-
Anyone have Patrick's contact info. I need to talk with him ASAP.
Thank You,
Brian Webster
www.wirelessmapping.com
Free World Dialup #481416
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Marlon
(509) 982-2181 Equipment sales
(408) 907-6910 (Vonage)Consulting services
42846865 (icq)And I run my own wisp!
64.146.146.12 (net meeting)
www.odessaoffice.com/wireless
Indeed and this seems to be what is happening with my RadioWave antennas. I
did ask about this prior to purchasing the antennas and was assured by the
vendor that there was isolation between the ports. Testing suggests
otherwise. Has anyone else used dual-polarized RadioWaves in this way? If
the
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 agreements also, have restrictions in the agreement
that disallow using multiple radios our spectrum ranges on the antennas
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
Hi Tom,
Our tower rentals are all based on wind-loading so a dual-pol
antenna costs the same as a single pol. What are the advantages of using
both polarities for the same signal in a good LOS environment?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
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
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, is
there anything else that could be preventing us having 2 separate
simultaneous
Reading further through the RadioWaves docs it clearly states that each
polarization is isolated from the other so I'm guessing the issue isn't the
dishes or feeds. The radios are mount about a foot from the dishes and the
RF cable is LMR-400. Is it possible/plausible that the interference is
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 consumer grade hardware
Remember the days of KarlNet ORiNOCO?? Back in those days, when using
Charles I hope we don't get kicked off this list for talking about
canopy. :)
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 Charles Wu
Sent: Tuesday, January
Nah, we aren't selling anything, just keep it civil. You guys could pay
your dues though, that would help the effort! ;) When is the last time you
guys heard from the moderator? Good job!
Rick Harnish
President
OnlyInternet Broadband Wireless, Inc.
260-827-2482 Office
260-307-4000 Cell
anybody got a couple for sale? Used is fine.
--
Brian Rohrbacher
Reliable Internet, LLC
www.reliableinter.net
Cell 269-838-8338
Caught up in the Air 1 Thess. 4:17
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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
Charles,
What equipment did you use to build up your WISP? Also what did you
start with and what did you end up with?
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
Mmm let me guess, he started with wavelan or probably lucent Orinoco
ended up with Trango and / or Canopy before he sold out... for Millions!
I started with Raylink... ended up with Canopy
Gino A. Villarini,
Aeronet Wireless Broadband Corp.
[EMAIL PROTECTED]
www.aeronetpr.com
787.273.4143
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