Interference on your CPEs or APs ? in Wireless Service Providers http://www.dslreports.com/forum/r20739335 en Wed, 11 Nov 2009 14:50:58 EDT Wed, 11 Nov 2009 14:50:58 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20767495 AMD Phreak : LOL @ LLigetfa......

A bit sensitive to the matter aren't we?

;)]]> http://www.dslreports.com/forum/remark,20767495 Wed, 09 Jul 2008 23:03:41 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20753024 LLigetfa : [rant]
Ja right, but the whole problem with this "me generation" is that they don't care that the gain is non-linear. They will trample the spectrum for that additional 11mbps without any remorse. When the neighbor gets an N router, they look for one with heigher EIRP and then go shopping for an amp to put on it so that they can enjoy five bars in every corner of the house. The guy with the N router in the attic probably put it there so that he would have fewer walls to shoot through. When they still don't get five bars they load dd-wrt in the hopes of cranking up the power. Now they overdrive the amp pushing up EVM, pulluting the spectrum and have their five bars bragging rights but the 11bmps throughput gain is lost.
[/rant](Sorry)
--
Strange as it seems, no amount of learning can cure stupidity, and formal education positively fortifies it. -- Stephen Vizinczey]]> http://www.dslreports.com/forum/remark,20753024 Mon, 07 Jul 2008 11:57:03 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20752819 dongato17 : Right, what I mean is that the increase in speed is marginal and not double (e.g. WRT-600N goes from 74Mbps to 95Mbps). So IMO it is not worth it to double the bandwidth consumed if the CPU can't keep up with the load.

-Hal]]> http://www.dslreports.com/forum/remark,20752819 Mon, 07 Jul 2008 11:16:11 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20752690 LLigetfa :
said by dongato17 See Profile :

Most COTS pre-N products don't have the CPU to take advantage of the 300Mbps rate, so the 150Mbps rate would be adequate. You'll never convince a home user of this though.
Adequate for what?

SmallNetBuilder comparisons:
»www.smallnetbuilder.com/componen···hart,63/
»www.smallnetbuilder.com/componen···hart,65/

40MHz channel bonding is not new to N.
--
Strange as it seems, no amount of learning can cure stupidity, and formal education positively fortifies it. -- Stephen Vizinczey]]> http://www.dslreports.com/forum/remark,20752690 Mon, 07 Jul 2008 10:47:31 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20752620 dongato17 : Typically, there are two modes, 20Mhz mode and 40MHz mode. In 20MHz, the max datarate is around 150Mbps OTA. To get the advertised 300Mbps OTA, it requires the 40MHz channel.

Most COTS pre-N products don't have the CPU to take advantage of the 300Mbps rate, so the 150Mbps rate would be adequate. You'll never convince a home user of this though. :)

-Hal
--
Harold Bledsoe
Ligowave
»www.ligowave.com]]> http://www.dslreports.com/forum/remark,20752620 Mon, 07 Jul 2008 10:34:08 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20752481 superdog :
said by Airplane777 See Profile :

Is that because the n router is wider bandwidth than regular wireless routers, and thus will have more of a chance to interfere with the CPE?
Yes, the N routers use almost all of the 2.4Ghz spectrum to attain the high over the air data rates. :(
--
»www.wavecrazy.net
]]> http://www.dslreports.com/forum/remark,20752481 Mon, 07 Jul 2008 10:01:11 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20752277 Airplane777 : Is that because the n router is wider bandwidth than regular wireless routers, and thus will have more of a chance to interfere with the CPE?]]> http://www.dslreports.com/forum/remark,20752277 Mon, 07 Jul 2008 09:12:50 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20752117 superdog :
said by superdog See Profile :

and it takes one person with an 802.11N router to crush just about everything around.
I thought perhaps I would give a little more detail on what I meant by that sentence. Both your AP's and CPE's should be high enough in the air that small SOHO or consumer grade AP's may be seen in a site survey, but it should not be enough to crush your setup.

I have had one situation where an 801.11N router caused me problems, but that was because the customer decided to install the router in the attic, less than 8ft away from the CPE that was on the chimney. When fired up, it still didn't completely take out the CPE, it just caused enough issues that the speeds the customer was getting dropped down to 1/3 of what it was before.

When I went to the location and saw what was going on (The user claimed to not have made any changes!), I forced the router to G mode and changed the channel on it and life was good. I tell all of my customers that if they make any changes to please call me and I will walk them through any settings that may have to be adjusted to make things run smoothly, especially with wireless routers. I also tell all of my customers to stay away from any "N" router. This person went to Staples and the sales person told them I was stupid and had no idea what I was talking about. He said there was no way that an "N" router would cause any issues with a wireless internet connection, and in most cases where the CPE terminates in the basement or first floor, it may have been fine?, Oh well........... :huh:
--
»www.wavecrazy.net
]]> http://www.dslreports.com/forum/remark,20752117 Mon, 07 Jul 2008 07:58:12 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20750750 superdog : Bob, Keep in mind that just because that channel is open today doesn't mean it will be tomorrow?. You and I are smart enough to look around before just firing up a radio. Most others are not and it takes one person with an 802.11N router to crush just about everything around.

I personally do not get too excited about what other SOHO AP's are in use, as using H polarity seems to fix any issues you may get from one, and unless that AP is withing 15 feet of yours?, it isn't going to be an issue. If anything, your gear should stomp on them and keep right on going (While keeping your setup legal!, LOL!).

You saw the site survey I posted? and there were 19 AP's showing up with more coming every day. IMHO, you really need to try and engineer your network so that it functions no matter what happens?. If not?, you will be spending more time fixing issues and changing channels then you will anything else.

I like to be able to go to bed and actually sleep and not lay there and worry about what is going to blow up next. :)
--
»www.wavecrazy.net
]]> http://www.dslreports.com/forum/remark,20750750 Sun, 06 Jul 2008 21:38:18 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20749758 robbin : Agreed -- When I talk proprietary it is the same as saying polling MAC. However, if the terrain allows to get away from 2.4 it would probably be wise. The noise floor is almost always going to be worse on 2.4 than it is in the 5 GHz band. Of course, there will be more problems with trees in the upper band.]]> http://www.dslreports.com/forum/remark,20749758 Sun, 06 Jul 2008 17:23:43 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20749553 LLigetfa :
said by Airplane777 See Profile :

I think some 2.4 G radios say 25 or 30 is the max # of clients.
Bob, you cannot tar all 2.4 radios with that brush. That limitation is for 802.11 and there are lots of other products out there in 2.4 running polling MAC that supports more subs per AP.
--
Strange as it seems, no amount of learning can cure stupidity, and formal education positively fortifies it. -- Stephen Vizinczey]]> http://www.dslreports.com/forum/remark,20749553 Sun, 06 Jul 2008 16:31:28 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20749534 robbin : I've heard of people with over 100 (even up to 150). ]]> http://www.dslreports.com/forum/remark,20749534 Sun, 06 Jul 2008 16:25:15 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20749533 LLigetfa : Speaking of interference and spectum analyzers...

I was checking out some recent threads over at metageek and came across these two:
»metageek.net/forum/wi-spy/greek-···y-device
»metageek.net/forum/wi-spy/french···y-device

Just be grateful you aren't trying to run a WISP in Greece or France.
--
Strange as it seems, no amount of learning can cure stupidity, and formal education positively fortifies it. -- Stephen Vizinczey]]> http://www.dslreports.com/forum/remark,20749533 Sun, 06 Jul 2008 16:24:52 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20749460 Airplane777 : Great info Robbin. Thanks much.

That will help me out.

Since I only have one 2.4 G channel that I can use (ch 11) up on the mountain, if I need more AP point channels, I might have to go with 5 G.

Whats the max client radios that can operate into one Trango AP on 5 G? I think some 2.4 G radios say 25 or 30 is the max # of clients. Maybe more, since the BW is higher on 5 G?]]> http://www.dslreports.com/forum/remark,20749460 Sun, 06 Jul 2008 15:58:22 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20749425 robbin : It depends on your link -- how long is it? 5.2 is lower power than 5.8 but if you only need to go a couple of miles it would be better as there is less interference in that band. 5.4 is new and has unusual requirements regarding power, radar installations, etc. Personally I would stay away from that band unless the others were to crowded to use. 5.8 is best for distance. I don't know why Canopy sells a 5.7 also unless it is for overseas use -- Trango's units cover that upper band in one unit

Link-10 is Trango's first PtP backhaul radio pair. They operate on both 5.3 (what we are calling 5.2) and 5.8 GHz. The pair currently for sale is for external antennas. Unless you need to go a long ways I would look for a pair with integrated. They don't do as many packets per sec as some of the new radios but it would probably be a good choice for your first link. They do 10Mbps dynamically so if you need 9 down/ 1 up one second and 5/5 the next, that is what they deliver. They are rock solid if your area doesn't have a tremendous amount of interference and come with all of the normal Trango goodies.]]> http://www.dslreports.com/forum/remark,20749425 Sun, 06 Jul 2008 15:48:51 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20749384 Airplane777 : Whats a Link-10 pair. Never heard of that. Is that by Trango?]]> http://www.dslreports.com/forum/remark,20749384 Sun, 06 Jul 2008 15:40:04 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20749363 Airplane777 : Hi robbin:

Thanks for the info. Another fellow mentioned about Canopy SM modules yesterday. Thats nice to see that Trango has a spectrum analyzer feature also.

Aren't there 4 different 5 G bands? I guess I would need to figure which of the four 5 G bands is best for WISPs, then buy that Canopy or Trango radio off ebay.

Or maybe the spectrum analyzer feature in a Trango will cover all the 5 G bands?

I see Canopy sells 4 different 5 G band radios (5.2, 5.4, 5.7 and 5.8 G). Which band do you all think is best for WISPs? I have a vague recollection that one of these bands requires low power operation, and thus might not give as much coverage?

[edit] Is 5.4 & 5.7 not used that much?]]> http://www.dslreports.com/forum/remark,20749363 Sun, 06 Jul 2008 15:35:18 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20749346 robbin : Buy a used radio off of Ebay. Trango has a spectrum analyzer feature built-in. I think Canopy does as well. Then when you are finished, sell it. You won't be out much more than shipping.

[edit] A used 5830 series Trango will cover both the 5.2 and 5.8 GHz bands. Or just buy a used Link-10 pair and install and use them. There is a set on Ebay right now for $750 buy it now - may go cheaper with bidding.]]> http://www.dslreports.com/forum/remark,20749346 Sun, 06 Jul 2008 15:28:36 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20749323 Airplane777 : I was up on the mountain yesterday afternoon to check for interference in the 2.4 G band (to see which of the 2.4 G channels I can use).

Looks like I can only use ch 11. I see two other transmitters around ch 1 & 6 are already being used by someone else. I think they are propritary radios, since they don't show up at all on my Netstumbler. I found them using my RangeLAN spectrum analyzer.

I wish there was an inexpensive spectrum analyzer for the 5 G bands, similiar to the relatively inexpensive RangeLAN2 and Wi-Spy devices which are used on 2.4 G for spectrum analysis. I will need a 5 G PTP shot (to the mountain), and I will have no idea which channels are clear (without a 5 G spectruum analyzer). I guess I could try different channels and do pings on each channel, and pick the one with the fastest ping time. That might be a crude way to tell if a 5 G channel is clear.]]> http://www.dslreports.com/forum/remark,20749323 Sun, 06 Jul 2008 15:22:08 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20742219 AMD Phreak : You can have problems with 2.4GHz canopy as well. It just happens that the MAC is built from the ground up to deal with high noise environments. This allows it to tolerate if you will, more noise. Noise is noise however, and there comes a point where the receiver on the CPE or on the AP gets completely swamped and can no longer function.]]> http://www.dslreports.com/forum/remark,20742219 Fri, 04 Jul 2008 15:34:08 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20741220 Airplane777 : Thanks for the info Tim:

I will switch to a higher gain antenna to help lower this interference, which is coming in from the side. Right now I'm just using the antenna thats built into my 2300, which I guess isn't all that narrow beam. i can't find any antenna patterns on the manufacturer's web site, for the built-in antenna on my 2300.

I was out last night with my Netstumbler, and I could see if I switched to horizontal polarity, this interferer's signal level dropped down.

So I can see when I put an AP on the mountain, I definitely will use horizontal polarity. I might even switch to horizontal polarity here at home, if I can find a horizontal omni with downtilt...and it's not too heavy for my tv mast (I don't want my tv mast swaying in the wind due to a heavy antenna). A good 2.4 G horizontal omni with downtilt might be hard to find.]]> http://www.dslreports.com/forum/remark,20741220 Fri, 04 Jul 2008 11:38:11 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20741193 Airplane777 :
said by robbin See Profile :

Whatever the frequency -- that doesn't really matter.
I know Canopy can handle interference even if it is just 3 dB below the Canopy signal. However it would seem that even propritary systems can have problems, if interference is on the same frequency...and strong enough.]]> http://www.dslreports.com/forum/remark,20741193 Fri, 04 Jul 2008 11:31:37 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20741177 Inssomniak : I was in competition with one WISP in an area, they ran vertical pol, and I ran horizontal, but they pulled out of the area after DSL came into town, and they switched everyone to DSL, but all my customers wanted to stay wireless mostly for cost reasons, after all their customers were out, they cranked the power of their AP and some users that were close to it had too much interference even with the narrowest beam antenna I had. I managed to flop channels around to fix it.]]> http://www.dslreports.com/forum/remark,20741177 Fri, 04 Jul 2008 11:29:14 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20741176 Airplane777 : My CPE with the interference is up on the second floor of a condo. I found out the interferring AP is right across the street in a rehab hospital, with a great shot right to my CPE.

I do see what you are saying about getting the CPE out of the plane of standard SOHO gear.]]> http://www.dslreports.com/forum/remark,20741176 Fri, 04 Jul 2008 11:29:06 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20740959 superdog : Bob, I run 2.4Ghz a an area that is full of AP's. An example from a site survey:

wavecrazysunset 00:18:d2:00:3c:4d 1 (B+G) AP no 67
wavecrazysunsetnorth 00:18:d2:00:3c:45 10 (G) AP no 60
07B403257444 00:12:0e:70:33:46 6 (B+G) AP no 50
linksys 00:0c:41:c0:3c:9b 6 (B) AP no 44
wavecrazysouth 00:18:d2:00:56:54 9 (B+G) AP no 38
NETGEAR 00:1e:2a:4f:92:72 1 (B+G) AP no 36
MOT-1-29 00:18:c0:61:0d:29 11 (B+G) AP no 35
linksys 00:18:39:d1:48:56 6 (B+G) AP no 29
Jumpstart-P1-799a23 00:11:95:55:53:29 6 (B+G) AP no 24
101 00:03:47:14:a6:3d 11 (B) AP no 23
keener 00:14:bf:c0:c1:d2 11 (B+G) AP yes 21
Stone Barn 02:d0:d8:60:08:91 11 (B) Ad hoc yes 20
trauma 00:18:4d:9a:dc:f0 6 (B+G) AP yes 20
wavecrazyELCO 00:19:3b:10:1f:ee 1 (B+G) AP no 18
EdKHershey 00:13:10:2d:1c:38 6 (B+G) AP yes 15
Ceresini III 00:e0:98:fd:d8:e8 6 (B+G) AP yes 15
06B403539321 00:12:0e:3c:ab:07 6 (B+G) AP yes 13
NETGEAR2 00:14:6c:9e:4a:a6 11 (B+G) AP no 13
EBERHART 00:11:95:39:5e:65 6 (B+G) AP yes 10

My AP's are on horizontal polarity. You can see that quite a few of my other AP's can see each other. I have yet to run into a situation where my AP is not stronger than a small Linksys AP that a neighbor is using etc.

You need to use a higher gain antenna on every CPE. This will fix your problem.
--
»www.wavecrazy.net
]]> http://www.dslreports.com/forum/remark,20740959 Fri, 04 Jul 2008 10:34:02 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20740270 cmaenginsb :
said by Airplane777 See Profile :

Hi all:

thanks for your comments on 2.4.

I can definitely see that 2.4 G would have less interference in rural areas, but I thought there were WISP operators here that used 2.4 G in areas that still might have a lot of homes and businesses.

I can see though that 5 G probably would have less chance of interference into the CPE in crowded areas.

Right now I'm not getting interference on my AP...yet...lol. Seems that people are staying away from my channel around my AP.

I'm wondering though, is it rare to have interference into CPEs on 2.4 G? I'm hoping to hear from others (who use 2.4 G in crowded areas) on this also.

I might just be having some bad luck having an interferer so nearby.

I do see though that I need to use an antenna with sharper forward gain, and much less gain to the side (where the interferer is).

I was thinking of putting my AP up on a mountain. Even so, I still could have my CPEs mounted in business areas and neighborhoods, where other people are operating APs on channels that I'm using. It seems that I could run into a lot of interference that way. Maybe interference into your CPEs happens to you all who use 2.4 G in business areas and residential areas?

Gee...I would think you all would have interference into your APs, if your APs are up high on a tower or a mountain.

Now I'm starting to have second thoughts about using 2.4 G...lol.

Thanks
Ya know you asked the same questions a while ago. Since the hilltop sites are located away from town, no you don't get much interference from them. You do get interference on the CPE, that is solved by high gain antennas and limiting distance.

In the city we use a minimum of a 19 db antenna for CPE and 12 for sectors. We can plan on going 5 miles and not seeing the effects of interference. In rural areas of course we can go further because chances of interference are less, we however can also use higher gain antennas like grids to overcome this.

I ran a WISP in Los Angeles and found primarily interference came from other WISPs in many cases located on the same hilltops. ]]> http://www.dslreports.com/forum/remark,20740270 Fri, 04 Jul 2008 03:20:08 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20740240 Diddy1 : I'm looking at 2.4Ghz more and more as a "start-up rapid deployment" space now days. Get up and running fast and get a subscriber base going for cash-flow. Now I've started considering the benefits other technologies offer in the 2.5Ghz band as well, like robbin has mentioned. I will however add a second note about elevation. Not only is it best to have your APs high and generally out of the plane of standard SOHO gear, but I try to have CPE up as high as possible as well, unless I get an incredible RSSI level at a lower heigth. My problem is not interferrence at the APs, but at the client locations since they are down "in the grit of it". But, I am no "engineer" either :huh:
--
if you fail to plan, you plan to fail]]> http://www.dslreports.com/forum/remark,20740240 Fri, 04 Jul 2008 02:51:48 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20740080 robbin :
said by Airplane777 See Profile :

Now I'm starting to have second thoughts about using 2.4 G
Good -- you need to use something which is proprietary and has polling. Whatever the frequency -- that doesn't really matter. I like Trango, others like Canopy, there may even be some new ones out I haven't heard much about. If you want to eliminate problems, go with one of them.]]> http://www.dslreports.com/forum/remark,20740080 Fri, 04 Jul 2008 01:17:08 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20740048 Airplane777 : Hi all:

thanks for your comments on 2.4.

I can definitely see that 2.4 G would have less interference in rural areas, but I thought there were WISP operators here that used 2.4 G in areas that still might have a lot of homes and businesses.

I can see though that 5 G probably would have less chance of interference into the CPE in crowded areas.

Right now I'm not getting interference on my AP...yet...lol. Seems that people are staying away from my channel around my AP.

I'm wondering though, is it rare to have interference into CPEs on 2.4 G? I'm hoping to hear from others (who use 2.4 G in crowded areas) on this also.

I might just be having some bad luck having an interferer so nearby.

I do see though that I need to use an antenna with sharper forward gain, and much less gain to the side (where the interferer is).

I was thinking of putting my AP up on a mountain. Even so, I still could have my CPEs mounted in business areas and neighborhoods, where other people are operating APs on channels that I'm using. It seems that I could run into a lot of interference that way. Maybe interference into your CPEs happens to you all who use 2.4 G in business areas and residential areas?

Gee...I would think you all would have interference into your APs, if your APs are up high on a tower or a mountain.

Now I'm starting to have second thoughts about using 2.4 G...lol.

Thanks]]> http://www.dslreports.com/forum/remark,20740048 Fri, 04 Jul 2008 01:03:54 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20739705 AMD Phreak : I agree with the comments above.

The best way to deal with it though is to deploy canopy 2.4ghz if you are hell-bent on 2.4GHz.]]> http://www.dslreports.com/forum/remark,20739705 Thu, 03 Jul 2008 23:23:28 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20739472 LLigetfa : I thing most WISPs avoid high density residential areas with 802.11bg gear. They either use 802.11bg in more of a rural setting or they use something like Canopy in built-up resiedential areas.

As robbin said, WISPs generally locate their POPs higher on towers, not on an un-guyed mast on their house in the middle of town.
--
Strange as it seems, no amount of learning can cure stupidity, and formal education positively fortifies it. -- Stephen Vizinczey]]> http://www.dslreports.com/forum/remark,20739472 Thu, 03 Jul 2008 22:28:36 EDT Re: Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20739431 robbin : I've never had this problem, although my AP's are Trango and run on 5.8. However I think the problem in your case is elevation. You need your AP higher so the CPEs are talking to the sky and your AP only. The other way to solve this problem is to use a small beamwidth antenna at the customer location and hopefully you have sectorized your POP. Omnis will only make this problem worse. ]]> http://www.dslreports.com/forum/remark,20739431 Thu, 03 Jul 2008 22:15:06 EDT Interference on your CPEs or APs ? http://www.dslreports.com/forum/remark,20739335 Airplane777 : I only have a little neighborhood WISP, and very few customers. But one of my customer's CPEs, just happens to have a nearby interferring AP, right on his CPE channel.

Last night his CPE said the interferring AP was 4 dB stronger then my AP.

My question to you all is: With your much larger WISP operations, do you all run into interference like this very often? I would think you would.

It seems like if the interferring AP is strong or near enough (to your customer's CPE), that your customer(s) might not be able to get WISP service from you at all.

I figure if my little WISP operation has this problem, then you guys must have a lot of problems in this regard.

For some reason, I don't seem to have any problems with nearby APs interferring with my AP. It appears that when I go into Site Survey mode in my AP, I only see one other AP on my channel, and it is fairly weak. Buut I see a bunch of others on channels 6 & 11.

Maybe I'm just lucky (knock on wood...lol). But what's to stop my neighbors and your neighbors from putting an AP right on your AP's channel, and thus cause interference problems? This can cause big headaches for your WISP operations. Maybe the only way to handle it, is to go to them and ask politely for them to change channels.

Do you all run into interference situations like this very often? I would think you would.

Thanks,]]> http://www.dslreports.com/forum/remark,20739335 Thu, 03 Jul 2008 21:51:33 EDT