We have a cluster of 6 brand new 2.4 GHz canopys.
They are synced with a CMM/GPS, all grounded/shielded CAT5E cable, channels are spread out, like the manual says.
If the SM is within 3 or so miles from the tower, we get decent throughput - 4.6M down/1.2 Up.
if the SM is further away, say 4 miles or more, it takes a lot longer to register, and when we run a link test we get 60% downlink percentage, and 100% uplink, but the actual UPLINK throughput is like, 3-4 kbps (that’s 3-4 kilobits!!!).
We’ve tried 4 types of dishes, including Motorola’s own. BTW, the downlink throughput is (reportedly) reasonable, about 2.5 Mb.
There is clear line of sight to the tower from the SM.
All AP’s and SM’s are running the 4.2.3 firmware. We’re at a loss as to what might be wrong. We’ve deployed a fairly large 5.7 network (~ 400 nodes) without any similar issues.
how close can the AP’s be to each other in a cluster?
any thoughts? :?
sounds like the ap is seeing interferrence and not clearly receiving the uplink from the sm. Have you tried changing frequencies around and retesting speeds.
md wrote: sounds like the ap is seeing interferrence and not clearly receiving the uplink from the sm. Have you tried changing frequencies around and retesting speeds.
yes, we've rotated the frequencies around, tried different combinations.
strangely, even a good reflector doesn't improve things much.
i'm not discounting interference... we will try it again with 6.1 firmware when it comes out (when _is_ it coming out?..) - supposedly it will have a spectrum analyzer for the AP's as well as SM's.