On 6/30/2014 10:24 AM, Jack Lehmann wrote:
Outside of the distance sensitivities, is there a clear reason why one
would or would not want to use this band?
If it's readily available in my area, while the FCC bands are quite
congested, would there be anything in particular to compel me to keep
away from it and figure out how to use one of the other FCC regulated
bands (11, 18 and 23)?
Can you get permission to use 38 GHz? It is one of those strange bits
of spectrum that was a auctioned off in geographic chunks, so given
blocks of spectrum had exclusive owners in a given area, like cellular.
I guess the idea was that they could then build ptp networks without
worrying about coordination. But it never caught on. FiberTower had
accumulated a lot of 38 GHz licenses and was trying to lease them out,
and had a deal with Dragonwave. But they went bankrupt and the licenses
were revoked in 2012. Some other license holders might however be
looking to find renters. But since there's no rent on 23 GHz, and it's
usually easy enough to license it, why bother?
38G is right between 23 and 60, with less rain fade than 60 and none of
that oxygen attenuation (why 80 is usually better), but enough rain fade
to limit it to about 2 miles reliably useful range in temperate zones
(where are you?).
--
Fred R. Goldstein k1io fred "at" interisle.net
Interisle Consulting Group
+1 617 795 2701
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