John,
To learn the propagation characteristics of 3.x GHz gear, testing in the
3300-3500 MHz ham band is clearly the best way to go. Personal
experimentation ("advancing the radio art") and performing public
service were (and are) the reason that the amateur radio service exists.
Of course, we can't make money or use ham radio for any commercial
purpose but it's absolutely perfect for learning about propagation
characteristics on many different frequencies. If you could report your
3.5 GHz test results back here, I think many WISPs would appreciate
knowing what you find out. I'm going to speculate (I've never been on
3.5 GHz myself) that the propagation will be a "cross" between 2.4 GHz
and 5 GHz. Obstacles will be more of a problem than on 2.4 GHz but not
as much of a problem as on 5 GHz.
Best Regards,
jack (K6XS)
BTW, For any WISP-person who wants to get their ham license, it's never
been easier. The Morse Code requirement has been dropped. Most parts of
the country have free or low-cost licensing classes. In as little as one
weekend, it's possible to learn everything needed to pass the
(multiple-choice) licensing test. Here's just one link:
http://www.hamuniverse.com/study.html
John Valenti wrote:
Jack & Patrick: thanks for all the info on 3650 status.
This type of response is why I'm on this mailing list.
That March 10, 2005 announcement is near-and-dear to me, since that is
what started me on the WISP path. I haven't closely followed the
progress on 3650, so when I saw the XR3 info I thought it might be
happening soon. Those thoughts were pushed along further when I saw
the Part-15 org people selling a "help get licensed on 3650 manual" --
their webpage doesn't indicate to me that it is still experimental.
http://www.part-15.org/sales/3650manual.asp
Sounds like I should plan testing under my ham license (~3400MHz)
rather than clogging up the FCC with a bogus STA application. My
interest is propagation thru our Michigan foliage, so I would want to
test this summer. But maybe someone could just tell me what to expect -
should it be similar to 2.4GHz?
-John (kd8bqx)
PS - any chance I could convince folks to trim their responses? I read
this list in digest mode, 80% of the digest is noise. :-)
The Ubiquitu XR3 spec sheet is misleading. As far as I know, there is no
current legal license-free 3650 operation allowed, as Ubiquity states.
Operation on 3650 can only take place when a Special Temporary
Authorization aplication has been submitted to the FCC and an STA
approval received back from the FCC. In general, STAs in the
Experimental Radio Service are issued to allow on-air testing of
equipment or new technology that can only be tested "on-the-air". Please
see my previous post which outlines the conditions under which an STA
may be granted.
--
Jack Unger ([EMAIL PROTECTED]) - President, Ask-Wi.Com, Inc.
Serving the License-Free Wireless Industry Since 1993
Author of the WISP Handbook - "Deploying License-Free Wireless WANs"
True Vendor-Neutral WISP Consulting-Training-Troubleshooting
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