I am running an RB333 board with 2 XR5 cards each on a 16db 120degree panel. They are both on different Freq’s. The problem i get is that when a client connects they will connect at 36 Mbps/36 Mbps (Tx/Rx) but when they start to pass traffic they will drop down to like 6Mbps/6Mbps (Tx/Rx). Why is that? Noise floor is -104 and signal is anywhere between -79 to -70
Hi,
just seen this with some Mikrotik / Ubiquiti configurations. Changing the card helps.
Regards
Lutz
how close are the antennas and the frequencies, you could have a self interference problem.
Erik
Our antennas are more than one meter from each offer and 200 MHz between the channels.
Regards
Lutz
do you mean 20mhz… 200mhz is more then the entire 2.4 band! We have 2 omni’s that are more then 10m apart and at opposite ends of the band so there is some 20+mhz of space between the edges of the channels. I have not load up the sectors yet but we a putting in a channel filter anyway. I think for sure you have some sort of self interference. I have do 2.4 and 5.8 in the same box with out issues but have not yet tried 2 2.4s. I you are not using Nstream, native 802.11 abg does not normally send any quantity of data so if you are looking for noise will would likely see any unless there is some file transfer happening.
Erik
I mean 200MHz using 5GHz! We don’t use 2.4 Ghz outdoor since years, because it’s to noisy. See this problems with UBIQUITI cards also sometimes with NStreme and disabled CSMA.
Regards
Lutz