If you haven't run a test with a spectrum analyzer, there really is no way to know for sure what is out there. Harmful noise, as you probably know, can come from all sorts of devices, not just 802.x APs.
Yes, -90 is bad for several reasons. 1. That link is probably suffering from high packet loss. This will not only cause problems for the customer's link, but will keep your AP busy resending dropped packets. One customer isn't going to overload an AP, but several could. 2. -90 doesn't leave much room for fade. Bad weather could, and most likely will, knock this link out in a heart beat. 3. The rate at which the client and AP talk at a -90 would be 1MB. Whenever the AP is "talking" to the client it will have to adjust its rate to match that of the client's. When another client, let's say it's connected at an 11mb rate, wants to talk the AP has to adjust its rate to 11mb, these constant adjustments can cause latency, dropped packets, and overload the CPU on the AP. This is more evident with the more clients you have. Always set your AP rate to "auto", hard set all clients to 11MB. Just make sure you don't do the install unless it will support an 11MB rate. Lastly, I would suggest that you test each and every link for packet loss sending large packets, 0% or less and you'll be good to go. I could be way off; your -90 client may be working perfectly. I just thought I would share some info that I had to learn the hard way. Good Luck!! -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jason Hensley Sent: Wednesday, July 19, 2006 4:34 PM To: WISPA General List Subject: Re: [WISPA] Tranzeo WDS capacity, Mikrotik - problems Interference really isn't much of an issue here. There's one other WISP and we work pretty closely together to stay out of each other's way. We've analyzed the area and nothing else is out there but us and the typical home APs. So -90 is that bad huh? Guess I may need to rethink those two installs. ----- Original Message ----- From: "Chad Halsted" <[EMAIL PROTECTED]> To: "WISPA General List" <wireless@wispa.org> Sent: Wednesday, July 19, 2006 3:46 PM Subject: RE: [WISPA] Tranzeo WDS capacity, Mikrotik - problems No personal experience on the X10, but from what I here, it will give you nightmares. Seems like I heard Marlon speak such wonderful things about the x10 before, eh Marlon? -90 signal is never a good thing. We won't do an install unless it's -75 or better. Sometimes even a -75 isn't strong enough to combat all the interference we have in town. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jason Hensley Sent: Wednesday, July 19, 2006 1:36 PM To: WISPA General List Subject: [WISPA] Tranzeo WDS capacity, Mikrotik - problems I've got a two AP WDS setup with Tranzeo TR-6000's with PacWireless 13db omni's on each. They are less than a mile apart. Any idea how many CPE's can run on each AP before it starts causing issues? We're going to be replacing the WDS setup with an actual backhaul soon, but just haven't gotten it done yet. I'm having trouble with performance. Works fine for awhile and then it seems to bog down, and then back to normal again. I've got about 10 clients (all Tranzeo gear) on each of the AP's. I wouldn't think that this would cause issues but I may be wrong. Signal between the WDS connections is around the -65 mark so that's no problem. I've got a couple of marginal clients (running -90 or so) so I'm wondering if these could possibly be causing it. Everything is horizontal pol. When the service completely drops out I can get to the AP's just fine from the client end, but can't get to the router (RB532). I've switched out cabling, switches, etc with no luck. Have a new 532 on the way so I'm going to switch it out as well and see what happens, but anyone have any other thoughts? Also, anyone have experience with an X10 camera shutting down their network? Thanks! -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
