Now for the 64 dollar question on dual pol antennas...Can one run 2 separate links using a Dual Pol Antenna pair. I'm looking at using 2 sets of Trango Link 45's. I would like to run 1 link Vertical and 1 link Horizional. using differant freqs of course. Can both of these links use the same dual pol antennas pair. I want to use one for a backup.
Best Regards, DSLbyAir, LLC 228-238-2563 --- On Mon, 9/29/08, Tom DeReggi <[EMAIL PROTECTED]> wrote: > From: Tom DeReggi <[EMAIL PROTECTED]> > Subject: Re: [WISPA] Dual Pol Antennas > To: "WISPA General List" <wireless@wispa.org> > Date: Monday, September 29, 2008, 2:02 PM > > They have SNR but not RSSI, which > > Does that mean they can't do a spectrum scan to get > rssi of AP? And need to > be associated to get a SNR? > > Tom DeReggi > RapidDSL & Wireless, Inc > IntAirNet- Fixed Wireless Broadband > > > ----- Original Message ----- > From: "jp" <[EMAIL PROTECTED]> > To: "WISPA General List" > <wireless@wispa.org> > Sent: Monday, September 29, 2008 10:34 AM > Subject: Re: [WISPA] Dual Pol Antennas > > > > The NS5 two small antennnas in it, one for each > polarity. They have SNR > > but not RSSI, which > > I don't like. They don't currently do WPA2+WDS > together very well; the > > firmware is > > improving quickly and has a lot of room for > improvement, but is promising. > > You can't turn > > radio power down lower than 10dbm, and it's a > 50/50 chance whether the > > radio will have an > > SMA or reverseSMA connector if you want to use an > external antennas. I'd > > like to see a > > few more months of polishing before recommending them. > We have only used > > them with MT and > > nanostation APs. > > > > On Sun, Sep 28, 2008 at 01:49:02PM -0500, Tom DeReggi > wrote: > >> Just looked up the Arc wireless 5.x DP subscriber > antenna. Looks like a > >> pretty awesome option. > >> 20dbi DP for around $60 + $60 for mount and > enclosure if desired. Thats > >> makin' it real. > >> > >> Not to switch subjects but... The NanoStation5, > has two 14dbi Dual pol > >> antennas inside. A great value, for near range > residential, for $100. > >> Any negatives with these units (for their > purpose)? Do they report full > >> RF > >> stats such as SNR and RSSI of the link? > >> > >> Have people found that they work well with StarOS > and Mikrotik APs? (for > >> their purpose of a single user residential type > CPE) > >> > >> Tom DeReggi > >> RapidDSL & Wireless, Inc > >> IntAirNet- Fixed Wireless Broadband > >> > >> > >> ----- Original Message ----- > >> From: <[EMAIL PROTECTED]> > >> To: "WISPA General List" > <wireless@wispa.org> > >> Sent: Sunday, September 28, 2008 12:52 PM > >> Subject: Re: [WISPA] Dual Pol Antennas > >> > >> > >> > The MTI 5GHz dual-pol sectors we bought were > around $600 if I remember > >> > correctly. > >> > > >> >> Interesting. I wasn't saying that it > isn't hard. > >> >> > >> >> Some manufacturers have found easy and > cost effective ways to make > >> >> Dual > >> >> Pol > >> >> antennas. But I'm guessing there > could be some intelectual property > >> >> patent > >> >> issues, or anyone to do it? > >> >> > >> >> But there has to be some savings > attributed to shared costs such as > >> >> ... > >> >> mounts, case, shipping costs, overhead, > distributor markup, R&D. > >> >> These > >> >> things are all a tangable cost that goes > toward the cost of a single > >> >> pol > >> >> antenna, and are not increased when the > inside of the antenna design > >> >> gets > >> >> modified to be DP. I'd be intereted > in what percentage of a single > >> >> pol > >> >> antenna cost is for the above 4 things > compared to the element itself. > >> >> > >> >> Truthfully, we have come a long way with > DP design and price for > >> >> parabolics > >> >> and subscriber panels. > >> >> > >> >> What realy confuses me is, why > manufacturers still can;t come up with > >> >> a > >> >> low > >> >> cost DP AP sector antenna? > >> >> > >> >> Its ironic as heck, that trango can sell > an entire AP radio and int DP > >> >> sector antenna, for less than third > parties sell a single DP sector > >> >> antenna > >> >> by itself. > >> >> > >> >> Thats still the missing peice of the > puzzle in 5.x Ghz DP. > >> >> > >> >> Its Ironic as heck... Titltek can make a > 4ft 900Mhz dual pol 90deg for > >> >> under > >> >> $700. But can't find a < 2ft 5.x > Ghz Dp 90 for less than a grand. > >> >> The last few I did, I took my old Trango > 5800s, drill holes in them > >> >> for > >> >> the > >> >> pigtails, took out the SBC, and used them > for the antenna. It was > >> >> cheaper > >> >> than buying an antenna. > >> >> > >> >> A couple vendors have represented that > they can make them. But I don't > >> >> see > >> >> part numbers listed. I'd love to see > these in the sub $300 range. > >> >> > >> >> Tom DeReggi > >> >> RapidDSL & Wireless, Inc > >> >> IntAirNet- Fixed Wireless Broadband > >> >> > >> >> > >> >> ----- Original Message ----- > >> >> From: "Chuck McCown - 3" > <[EMAIL PROTECTED]> > >> >> To: "WISPA General List" > <wireless@wispa.org> > >> >> Sent: Saturday, September 27, 2008 11:30 > AM > >> >> Subject: Re: [WISPA] Dual Pol Antennas > >> >> > >> >> > >> >>>A dual pol panel antenna can be an > order of magnitude more difficult > >> >>>to > >> >>>make > >> >>> than a single linear polarized > antenna. Almost all panel antennas > >> >>> are > >> >>> either an array of patches or an > array of butterfly dipole elements > >> >>> over > >> >>> a > >> >>> ground plane. Most designers are > trying to put as much gain in the > >> >>> area > >> >>> as > >> >>> they can. The means the feed network > and driven elements are crammed > >> >>> in > >> >>> so > >> >>> close together that you suffer some > degradation. To make a dual pol > >> >>> patch > >> >>> you have to use a square patch. That > already is less than optimum. > >> >>> Then > >> >>> you have to produce a second feed > mechanism for feeding the second > >> >>> feed > >> >>> point on all the patches. That means > other layers and intermediate > >> >>> ground > >> >>> planes etc. Not easy at all. > >> >>> > >> >>> ----- Original Message ----- > >> >>> From: "Tom DeReggi" > <[EMAIL PROTECTED]> > >> >>> To: "WISPA General List" > <wireless@wispa.org> > >> >>> Sent: Saturday, September 27, 2008 > 9:49 AM > >> >>> Subject: Re: [WISPA] Dual Pol > Antennas > >> >>> > >> >>> > >> >>>> Drew, > >> >>>> > >> >>>> Who sells/stocks it? > >> >>>> > >> >>>> I also saw someone was selling > what looked like the MTI Dual pol > >> >>>> 25dbi > >> >>>> for > >> >>>> about $200, I think it was > wlanparts.com. Thats starting to get > >> >>>> affordable. > >> >>>> > >> >>>> I'm fine with Dual Pol dishes > for $225, its a lot of metal. Plus > >> >>>> there > >> >>>> usually needed for more critical > links. Also used more often on > >> >>>> tower > >> >>>> sites > >> >>>> where I get charge per antenna. > >> >>>> However, when a standard panel is > only $50, it can't be that more > >> >>>> expensive > >> >>>> to add a couple more elements for > the second pol. > >> >>>> Clearly a lot of markup fat in > the price model. I think there is a > >> >>>> huge > >> >>>> market for the dual pol Panels at > sub $150, but at $250, a WISP > >> >>>> really > >> >>>> has > >> >>>> to think about whether its worth > their while, when they can just > >> >>>> install > >> >>>> two > >> >>>> single pol antennas side by side. > Expecially if isntalled on > >> >>>> customer > >> >>>> roofs > >> >>>> where there aren;t colo fees. I > see no reasons that the smaller gain > >> >>>> panels > >> >>>> couldn't be made and sold for > sub $125. Don't get me wrong, its > >> >>>> still > >> >>>> good > >> >>>> news to learn of new DP panels > available as option. Trango also has > >> >>>> their > >> >>>> external model, but its about > $300. > >> >>>> > >> >>>> Tom DeReggi > >> >>>> RapidDSL & Wireless, Inc > >> >>>> IntAirNet- Fixed Wireless > Broadband > >> >>>> > >> >>>> > >> >>>> ----- Original Message ----- > >> >>>> From: "Drew Lentz" > <[EMAIL PROTECTED]> > >> >>>> To: "WISPA General > List" <wireless@wispa.org> > >> >>>> Sent: Friday, September 26, 2008 > 6:58 PM > >> >>>> Subject: Re: [WISPA] Dual Pol > Antennas > >> >>>> > >> >>>> > >> >>>>>A product I really like for > dual-pole is the Mars WA56-DP25N. It's > >> >>>>>a > >> >>>>> pretty inexpensive panel from > 4.9 - 5.875 @ 25dBi .. There are 2 > >> >>>>> versions, 1 is the antenna > alone, the other is with an enclosure. > >> >>>>> Its > >> >>>>> ~ > >> >>>>> $260. I know its not $150, > but its not too bad! > >> >>>>> > >> >>>>> -d > >> >>>>> > >> >>>>> > >> >>>>> On Sep 25, 2008, at 10:04 PM, > Mike Brownson wrote: > >> >>>>> > >> >>>>>> A broadband dual pol dish > will work from 5.2 to 5.9Ghz. You'll > >> >>>>>> get > >> >>>>>> the same gain on both > polarities. But there's noting I know of > >> >>>>>> less > >> >>>>>> than $150. Usually dual > pol dishes are used where you may need a > >> >>>>>> higher quality antenna, > so all the manufacturers I know of > >> >>>>>> (RadioWaves, Maxrad, Pac > Wireless) for dual pol are the higher > >> >>>>>> grade > >> >>>>>> varieties. > >> >>>>>> > >> >>>>>> Mike > >> >>>>>> > >> >>>>>> > ________________________________ > >> >>>>>> > >> >>>>>> From: > [EMAIL PROTECTED] on behalf of Blair Davis > >> >>>>>> Sent: Thu 9/25/2008 8:41 > PM > >> >>>>>> To: WISPA General List > >> >>>>>> Subject: [WISPA] Dual Pol > Antennas > >> >>>>>> > >> >>>>>> > >> >>>>>> All this talk about Dual > Pol feedhorns has got me curious.... > >> >>>>>> > >> >>>>>> I'm looking for a > dual pol antenna... > >> >>>>>> > >> >>>>>> What I need is H-Pol on > 5.3GHz band with 18db or more of gain and > >> >>>>>> V- > >> >>>>>> Pol on 5.8GHz with 15db > or more of gain. A narrow beam width is a > >> >>>>>> plus. > >> >>>>>> > >> >>>>>> A grid or a dish will be > fine. I'd like to keep the price down as > >> >>>>>> if it is over $150 or so, > it really won't be cost effective. I > >> >>>>>> can > >> >>>>>> mount 2 antennas at this > location if I have to. > >> >>>>>> > >> >>>>>> This is for a short link, > about 2000ft, but it will be at the end > >> >>>>>> of > >> >>>>>> about 50ft of LMR-400. > >> >>>>>> > >> >>>>>> Thanks for any ideas.... > >> >>>>>> > >> >>>>>> Blair > >> >>>>>> > >> >>>>>> > >> >>>>>> This email and any files > transmitted with it are confidential and > >> >>>>>> intended solely for the > use of the individual or entity to whom > >> >>>>>> they > >> >>>>>> are addressed. If you > have received this email in error please > >> >>>>>> notify the system > manager. This message contains confidential > >> >>>>>> information and is > intended only for the individual named. If you > >> >>>>>> are not the named > addressee you should not disseminate, distribute > >> >>>>>> or copy this e-mail. > >> >>>>>> > >> >>>>>> <winmail.dat> > >> >>>>>> > >> >>>>>> > -------------------------------------------------------------------------------- > >> >>>>>> WISPA Wants You! Join > today! > >> >>>>>> http://signup.wispa.org/ > >> >>>>>> > -------------------------------------------------------------------------------- > >> >>>>>> > >> >>>>>> WISPA Wireless List: > wireless@wispa.org > >> >>>>>> > >> >>>>>> Subscribe/Unsubscribe: > >> >>>>>> > http://lists.wispa.org/mailman/listinfo/wireless > >> >>>>>> > >> >>>>>> Archives: > http://lists.wispa.org/pipermail/wireless/ > >> >>>>> > >> >>>>> > >> >>>>> > >> >>>>> > -------------------------------------------------------------------------------- > >> >>>>> WISPA Wants You! 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