funchords
Hello
Premium,MVM
join:2001-03-11
Washington, DC
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| reply to DavePR
Re: I like and dislike
Looks like you're right -- in June 2008 it became 2155-2180 MHz -- maybe it was AWS-2 that I was thinking of.
»hraunfoss.fcc.gov/edocs_public/a···20A1.pdf
802.11b channel centers are 5 MHz apart but the signals are 20 MHz wide ... looks like this:
img: »cp.home.agilent.com/upload/cmc_u···trum.jpg
--
Robb Topolski -= funchords.com =- Hillsboro, Oregon -- KJ7RL
What you do at Christmas does not matter so much; What counts are the Christmas things you do all year through. |
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DavePR
join:2008-06-04 | reply to funchords
If the spectrum is 25 MHz and it lies between 2155 and 2180 MHz, how can it be non-contiguous?
802.11[b] is spread spectrum. |
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funchords
Hello
Premium,MVM
join:2001-03-11
Washington, DC | reply to DavePR
Only because they're tiny and non-contiguous blocks. I seriously had to ask around as to whether they were big enough to be useful.
A single 802.11b channel uses more spectrum than we're talking about here. |
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DavePR
join:2008-06-04 | reply to funchords
How do you figure these frequencies are "the dregs"? Sirius and XM seem happy enough living in the neighborhood. |
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