AP's were set to -60 but were having uplink issues with wireless link tests as bad as .1MB or at best .5MB uplink Once I changed them to -45 Target recieve level the uplink throughput went up to between 2MB and 8MB now. FYI the AP's we have customers on have no registred Subs on the sector opposite them on the towers at this time so it cant be F/B sector receive beign too strong and causing interference.
Craig ----- Original Message ----- From: "George Skorup" <[email protected]> To: [email protected] Sent: Saturday, June 6, 2015 8:20:40 PM Subject: Re: [AFMUG] EPMP 10 mhz vs 20mhz What do you have the APs SM Rx target level set to? If it's default at -40, that's a problem. I set FSK to -60, ePMP and 450 get -57 (-60 per polarity). Seems to work well. Absolutely required for frequency reuse with close/hot SMs. Since you said you have some customers receiving at -50, their uplinks are probably really hot, which means more than enough to interfere with adjacent/back sectors. It's different with the 450, no guard bands required, better filtering. Well, there's some oddities like the 3GHz 450 that has adjacent channel support, which limits the SM's max Tx power so that no guard band is required. On 6/6/2015 7:19 PM, Craig House wrote: > We have deployed 6 towers to begin our new EPMP network and 4 of those towers > have a full cluster of 2.4 90 degree EPMP sectors. They are configured with > ACS turned off now because in several cases they all ended up on the same or > very close to the same channel. I have Front back designations and non > overlapping channels set up on all towers. I have tried 40 mhz 20 mhz and > now 10mhz channels and while the customer stability has gotten better the > more I play with settings I have kind of hit a point I dont know what else to > try. I have some that the uplink quality will vary wildly from 100% to 0%. > Most have gotten better since I went to a 10mhz channel. Most of the > customers get 12MB -30mb down in the wireless link test but the uplinks are > as bad as .17. What is the cause of this poor uplink quality? Is it > interfernece? My one 5ghz AP does not have this problem but even with noise > many of these customers have -50 signals and oddly enough the ones with the > great signals seem to be the ones that have the poorest link tests on the up > link side. I also have customes with -65 or -72 signals that get 5MB up on > the same sectors? Im scratching my head a bit on what the fix is for this? > Should I leave ACS on and change everything to 10mhz channels? Will a full > cluster with ACS on work all on the same channel? > I'm used to FSK where you pick your channel and any channels that are > adjacent will cause problems with connected SM's. So am I just applying old > knowledge to a technology that it doesn't apply to? > > Craig
