I've given up on this. There is just too much cross talk. I put all radios in the same band in their own METAL enclosure nowadays. I try to keep them at least 3 or 6 feet apart too. Life is much much nicer. marlon
----- Original Message ----- From: "Mike" <m...@aweiowa.com> To: "WISPA General List" <wireless@wispa.org> Sent: Wednesday, December 02, 2009 8:13 AM Subject: [WISPA] Multiple Radio cards in an enclosure > Since I am probably one of the veterans called out yesterday for my > messaging etiquette, I am changing the subject. > > I am interested in the multiple radios in an enclosure idea. I do > have a couple with 5.8 and 2.4 gear in the same box, but have been > afraid to put cards in the same band in the same case. > > The foil spacer you put between cards Bob, do you then ground it to > create a sort of Faraday shield? I know the XRx cards do a good job > of shielding if you attach the pigtail. > > How about the receive sensitivity on the 411 cards? Has that been an > issue? I think the XR cards have better specs. Wouldn't having > multiple 411 cards in the same box possibly have desense issues too? > > Mike > > > At 09:41 AM 12/2/2009, you wrote: >>Forgot to add, if you're concerned with any RF collisions inside the box, >>the other thing I talked about earlier, having just 3 411 cards in their >>own >>box at the sector then running Cat5 to transparent bridge the 411's to a >>central RouterOS device would take any of that issue totally away. That's >>one that I'm doing just to do it, basically. Was an idea from someone a >>couple of months ago. (I actually listen to you guys) Had a 600a doing >>nothing and some 411 cards "so why not play?" was my thinking. >> >>Bob- >> >> >>-----Original Message----- >>From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On >>Behalf Of Mike >>Sent: Wednesday, December 02, 2009 9:48 AM >>To: WISPA General List >>Subject: Re: [WISPA] Sectors >> >>Have you had any issues with putting 3 radio cards in the same >>spectrum in the same box? I've thought about that but wondered if >>there would be desense issues where one transmitting desensitizes >>another one listening. >> >> >>At 08:38 AM 12/2/2009, you wrote: >> >Yep, looks like you're hitting the wall. We aren't lucky enough to push >> >3 >> >meg here, the most is usually 1 so again, all depends on your customer >>base. >> > >> >I'd say if you already have 35 on that one AP, just splitting it into 2 >> >180 >> >degree sectors will just cost you cash as soon as you gain a few more >> >customers. You already have 35 pulling it down, sounds like if you just >> >do >> >2 180's, if split evenly (and it never will be) that would put you to >> >where >> >you probably want to be for smooth delivery but not much room for more >> >growth. I'd go with 3 120's and a 433AH with 3 cards on it, one per >>sector. >> >I have a few like that and it works fine for what I do but again, I only >> >dole out 1mb per sub typically. I've also been upgrading some of my >> >remote >> >AP's to one 433AH with only one radio installed and an Omni. The >> >anticipated upgrade path is to just add a sector or 2 and radio card as >> >needed to the point where I have 3 sectors. Keeping the Omni of course >> >until the third sector is needed. That's something someone already >> >suggested doing and I like the economics of it. >> > >> >Bob- >> > >> > >> > >> >-----Original Message----- >> >From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On >> >Behalf Of Jason Hensley >> >Sent: Wednesday, December 02, 2009 9:26 AM >> >To: 'WISPA General List' >> >Subject: Re: [WISPA] Sectors >> > >> >Max 3meg - b only mode on this particular AP. Most are still able to >> >get >> >that, but we're seeing a decline on how many can pull 3meg. At peak >> >times, >> >we've seen it to where users aren't able to get much over 1meg, but >> >that's >> >not happening very often right now. >> > >> > >> > >> >-----Original Message----- >> >From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On >> >Behalf Of Robert West >> >Sent: Wednesday, December 02, 2009 8:23 AM >> >To: 'WISPA General List' >> >Subject: Re: [WISPA] Sectors >> > >> >Yeah, how much bandwidth are you passing to those 35 customers, Jason? >>Just >> >curious. >> > >> >Bob- >> > >> > >> > >> >-----Original Message----- >> >From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On >> >Behalf Of os10ru...@gmail.com >> >Sent: Wednesday, December 02, 2009 9:10 AM >> >To: WISPA General List >> >Subject: Re: [WISPA] Sectors >> > >> >Do you think you're hitting the limit of 802.11b/g or is it the lack of >> >horsepower on the AP's CPU? >> > >> >Greg >> >On Dec 2, 2009, at 8:33 AM, Jason Hensley wrote: >> > >> > > On this same subject, would it be better to put up 3 individual AP's, >> > > or >> > > would something like the Deliberant Quad work well if the issue is AP >> > > overload. I have an AP that has 35 subscribers right now. We've >> > > seen a >> > > performance drop on it and are considering sectoring. >> > > >> > > Any thoughts on a dual (or quad) radio on a single board vs multiple >> >boards >> > > with single radios? >> > > >> > > >> > > >> > > -----Original Message----- >> > > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] >> > > On >> > > Behalf Of Rick Harnish >> > > Sent: Wednesday, December 02, 2009 6:28 AM >> > > To: 'WISPA General List' >> > > Subject: Re: [WISPA] Sectors >> > > >> > > Mark, >> > > >> > > If I remember right, you are in Missouri. I was looking for the >>strength >> >of >> > > your omni. We have had good success with 9 db omni's in the Indiana >> > > farmland. When we need to sectorize but the market capacity is not >> > > that >> > > high, we often go to (2) 180 Superpass 9 db sectors. We have had >> > > good >> >luck >> > > with them over the years. They improve our signal to existing >> > > clients >>and >> > > enable affordable expansion in rural areas. If the market will >> > > justify >>3 >> > > sectors, I would go that way though. >> > > >> > > Many of our Wireless POPs are pico-cells and we try to limit our >>salesmen >> >to >> > > a 6 mile diameter around the tower. Although, we can often go >> > > farther, >>we >> > > try to stay inside these guidelines when possible. To achieve a high >> >density >> > > of broadcast stations, many locations are needed. Luckily, we are >> > > well >> > > established in our area and have most of these sites already in >>operation. >> > > Your mileage may vary given your topology and broadcast site density. >> > > >> > > Rick Harnish >> > > >> > >> -----Original Message----- >> > >> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] >> > >> On >> > >> Behalf Of Mark McElvy >> > >> Sent: Tuesday, December 01, 2009 10:51 PM >> > >> To: WISPA General List >> > >> Subject: [WISPA] Sectors >> > >> >> > >> I am running 2.4 HPOL It has taken about 1.5 yrs to grow this AP to >> > >> 32 >> > >> subs. >> > >> >> > >> -----Original Message----- >> > >> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] >> > >> On >> > >> Behalf Of 3-dB Networks >> > >> Sent: Tuesday, December 01, 2009 9:37 PM >> > >> To: 'WISPA General List' >> > >> Subject: Re: [WISPA] Sectors >> > >> >> > >> What frequency band and polarization? >> > >> >> > >> I would also strongly consider your reasoning for moving from the >> > >> Omni >> > >> to >> > >> the sectors. If it is because your AP is overloaded so you need to >> > >> offload >> > >> some, 3 AP's might be attractive for future proofing sakes. >> > >> >> > >> Daniel White >> > >> 3-dB Networks >> > >> http://www.3dbnetworks.com >> > >> >> > >> >> > >> -----Original Message----- >> > >> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] >> > >> On >> > >> Behalf Of Mark McElvy >> > >> Sent: Tuesday, December 01, 2009 8:29 PM >> > >> To: WISPA General List >> > >> Subject: Re: [WISPA] Sectors >> > >> >> > >> 9db >> > >> >> > >> -----Original Message----- >> > >> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] >> > >> On >> > >> Behalf Of Rick Harnish >> > >> Sent: Tuesday, December 01, 2009 7:42 PM >> > >> To: 'WISPA General List' >> > >> Subject: Re: [WISPA] Sectors >> > >> >> > >> What size omni are you using? >> > >> >> > >>> -----Original Message----- >> > >>> From: wireless-boun...@wispa.org >> > >>> [mailto:wireless-boun...@wispa.org] >> > >> On >> > >>> Behalf Of Josh Luthman >> > >>> Sent: Tuesday, December 01, 2009 7:59 PM >> > >>> To: WISPA General List >> > >>> Subject: Re: [WISPA] Sectors >> > >>> >> > >>> That is the general suggestion - two 120s. That one guy that does >> > >>> antenna design said so :) >> > >>> >> > >>> You will get some less coverage then three 120s but at the cost of >> > >> the >> > >>> extra radio/antenna it isn't cost efficient. >> > >>> >> > >>> On 12/1/09, Mark McElvy <mmce...@accubak.com> wrote: >> > >>>> I need to sector a tower that currently is an omni. I don't >> > >>>> really >> > >>> want >> > >>>> to go to 3x 120's but find it hard to find 180's and have heard >> > >> they >> > >>>> don't tend to work great. I have also heard 2x 120's will work, >> > >>>> any >> > >>>> comments? >> > >>>> >> > >>>> >> > >>>> >> > >>>> Mark >> > >>>> >> > >>>> >> > >>>> >> > >>>> >> > >> --------------------------------------------------------------------- >> > >>> ----------- >> > >>>> WISPA Wants You! 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