More gain and less tx power tends to be better. On Sep 23, 2012 12:32 PM, "Bret Clark" <[email protected]> wrote:
> How short of a link are you looking at? Run the numbers first, bigger > doesn't always mean better and you might find yourself having to turn > down the radios so you're not screaming at each other. > > On 09/23/2012 11:43 AM, Fred Goldstein wrote: > > At 9/23/2012 06:17 AM, Paolo Di Francesco wrote: > >> Hi All, > >> > >> I have noticed that lately many collegues are using Ubiquiti Nanobridge > >> M5 (the one with small parabolic dish) and the product is nice for the > >> signal (more or less). > >> > >> Unfortunately, I do not see in the *same price range*, the same product > > >from Mikrotik. The only thing that I see is "SEXTANT 5HnD" which is > >> declared to be 18dBi (much less that the 23dBi DECLARED by Ubiquiti) > > Antenna gain is almost entirely a function of size; with a dish, it's > > pretty straightforward. The NM5 has 326 and 400 mm dish versions, > > for 22 and 25 dB nominal gain. The Sextant is 250 mm; the SXT is 140 > > mm. Smaller dishes means less directivity and lower gain, but also > > less wind load and visibility. Neither one is "better" in that > > regard; they're just different. And they tend to price out a bit > > better than buying a radio and dish separately, but not by much. > > > >> What I do not like of Ubiquiti is that compared to mikrotik it has much > >> less features, for example no mac-ping/mac-telnet or multiple SSID (ok > >> you can have multiple SSID if you use the CLI and the linux command line > >> and maybe it will be implemented in the future) > >> > >> Therefore, I really wonder if those 18 vs 23 are real or just what you > >> think from your field experience. > > Those features are just software and have nothing to do with the gain > > of the antenna. It's like comparing horsepower of a car's engine > > with the comfort of the seats. Personally I don't think the radio > > unit itself should do more than pass along Ethernet frames > > transparently, and respond to management, but since everybody's > > working from a Linux kernel and that already has lots of other > > capabilities, people expect their radios to also be routers. > > > > > > -- > > Fred Goldstein k1io fgoldstein "at" ionary.com > > ionary Consulting http://www.ionary.com/ > > +1 617 795 2701 > > > > _______________________________________________ > > Wireless mailing list > > [email protected] > > http://lists.wispa.org/mailman/listinfo/wireless > > _______________________________________________ > Wireless mailing list > [email protected] > http://lists.wispa.org/mailman/listinfo/wireless >
_______________________________________________ Wireless mailing list [email protected] http://lists.wispa.org/mailman/listinfo/wireless
