Can anyone give any insight as to what I can expect out of a 25 km 2.4 ghz link? We are using 24 dbi single pol antennas (vertical) with r52hns on each side. I’d like to get at least 30 mb throughput with 90+ ccq. We currently have the link up but it is only getting about a 77 during the nighttime. Also, during the daytime the signal goes up to around 90 and the performance heavily degrades. We have clear line of sight and fresnel, does anyone else have a solid link like this?
30Mb is a lot for a single 2,4Ghz link, even if you get your signals better. Or use a 40Mhz channel. I hope nobody else uses 2,4Ghz in your area. Better go for 5Ghz.
It’s pretty rural out here, when scanning from the client side I don’t pick any other networks up except our own. 40 mhz channels are a possibility, but our signal strength seems to be the main issue. We plan to eventually make it a 5 ghz link but we can’t at the moment.
use xr2 cards i dunno about 30mbps throuput but sure u’d have much stable links.
i hav a 50 km link with xr2 & 27 dbi grid and btest gives me 4 mb at ease.
i dunno if u’d get a link at 40mhz with r52hn cards
Are you shooting over water? Heavily forested area?
You will have a lot of issues with temperature variations and humidity changes in Alabama with 2.4GHz, especially at that distance.
I have a 24 mile link that crosses a river, plenty of trees, etc. The 5GHz link is solid, the 2.4GHz link is spotty. Never did get more than 3Mb across it reliably. Signal would be around -75, CCQ was good, load the link up for 15 minutes, everything was fine, go work on something else and the CCQ is in the dirt.
5GHz has very little variation on the same link. 20Mb with Nstreme, 10mb without.
And when scanning at the AP’s side?
Also, what is your total path loss, included the cable. If you use long coax you loose signal in these.
And check the coax connectors.
You write you have no issue with Fresnel. This could mean you either have high towers (so maybe long cables) or maybe is the fresnel not that big as you think. If you could give us more info on that we might have more comments!
