We are in the process of replacing all of our old 802.11b gear with 802.11g AP/CPE running on 10mhz channels. 802.11g on 10mhz channels is a great solution, as it takes up less spectrum, has more interference resistance and delivers about 2x the speeds of standard 802.11b. In my experience, it has made it possible for us to double up the capacity on our access points and offer 2-4meg speeds to our customers on those APs.
I use StarOS for APs, and Tranzeo, Ubiquiti, Mikrotik and StarOS CPE radios. Working great for me so far. Matt Larsen vistabeam.com Marlon K. Schafer wrote: > I've found that in noisy environments b works better. Just did a repair at > a customer's site, 400 to 700k down, 2 to 3 megs upload. Switched from b/g > to b only and no he gets a steady 4 megs both ways. Go figure. > > Mikrotik with xr2 card. Power set to 20dB with 13dB 120* hpol sector. > About 25 subs on this one. LOTS of other 2.4 in the area. > marlon > > ----- Original Message ----- > From: "Jason Hensley" <ja...@jaggartech.com> > To: "'WISPA General List'" <wireless@wispa.org> > Sent: Thursday, October 01, 2009 7:58 AM > Subject: [WISPA] To G or not to G :-) > > > >> In 2.4 land, if you have a lot of noise, which protocol is better - B or >> G? >> Is it better to run an AP as locked into one mode or is it OK to do a mix? >> >> Max I want off of 2.4 customers is 3meg so not that worried about the >> extra >> speed that G will provide, but, I would like to know which is more stable? >> I've always thought that B was more stable overall but just provided less >> bandwidth. I've gotten some info that may counter that. What's the >> real-world experience with folks in a high-noise environment, combined >> with >> a higher useage AP? >> >> I've got an AP that we've run in B mode only for a while. We've started >> having problems with it - speeds go from 3meg at the customer to 200k and >> fluctuate constantly. We've worked with RTS, ACK timeouts, etc etc and >> nothing seems to have improved the stability. For testing purposes we put >> up another AP right next to the one we're having trouble with. Switched >> two >> of our gaming clients to that one (setup as G mode only) and they seem to >> be >> doing better, but not quite as good as we feel they could be. This is on >> Deliberant AP's (Duos). The backhaul part of it is not the issue - we can >> pull close to 15meg back to our office when cabled into the AP. We have >> other Deliberant APs that are running MANY more clients than this one so >> we >> know it's not limitations of the equipment. AP is on top of a water >> tower. >> Have taken all clients off and brought them back on one by one and it did >> not reveal anything significant. With just one customer on the AP started >> acting up again. Swapped radios in the AP thinking we could have one >> going >> bad and still no luck. >> >> 2.4 antennas are H-pol. We have a ton of noise in the area, but we've >> been >> through basically every channel and it did not help either. Other AP's in >> the vicinity are performing fine. Thought of the multipath issue so we >> raised our test AP up a little higher than the other one. As I said, the >> test AP seems to be better, but next to it on top of the tower we can get >> around 8 or 9 meg down (locked into G mode), but at the CPE's we're still >> barely getting 2.5-2.8meg. >> >> Any thoughts? We changed everything we can. The new "test" AP has a 9db >> antenna compared to the 13db on the "production" AP. Other than that, >> they >> are identical as far as equipment goes. >> >> So, back to the subject question though, what's real-world experience with >> G-only mode in the field? >> >> >> >> >> -------------------------------------------------------------------------------- >> 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! 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! 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/
