Quote:
| from what i read of the link you posted it said that 4w was the max for omndirectional. i was using grid antennas |
You read wrongly, you were reading about the FCC (eg American) regulations. NZ's are summed up:
New Zealand 1W any mod, any usage - 4W freq hop & dig mod only
As wifi is freqency hopping technology, it has a 4W EIRP, which is irrespective of antenna type.
It should, it is newer technology
Quote:
i was wondering this:
how far would you say the antenna should be mounted above a metal structure
on the 1 mile link mentioned above, i have that 24 about 1 ft off a metal bin and a 16dbi about 4 ft off a metal silo. but between that there is absolutly nothing it is perfect los, no trees or anything.
in the above setup, what kindof multipath issues do i have?
thankyou for your help so far too |
I'm sorry, I'm from a stubborn metric upbringing. I can get the gist of some of it, but you'll have to talk to me in terms of metres and kilometres.
Your concern about metal structures is related to the Farraday effect, however it really shouldnt be a problem. As for multipath, signal can bounce off a lot of things.. it could skim the earth's surface for example and shoot back up.
Grid antennas have a remarkable coverage pattern, they're supposed to be quite tight but I can pick up AP's behind my one, one that is 45 degrees off and about 2km away for example!
My 19dB is also picking up a cafe's network on the other side of wellington harbour, at least 10km away