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
