On Tue, 27 Apr 2010 18:40:22 -0700, Richard Clark
wrote:

On Tue, 27 Apr 2010 16:20:56 -0700, Jeff Liebermann
wrote:

On Tue, 27 Apr 2010 11:22:59 -0700 (PDT), Art Unwin
wrote:

Tom Rauch W8JI has added to his home page a discussion about diversity
antennas

A link might be helpful:
http://www.w8ji.com/polarization_and_diversity.htm

That page is a ramble.

I don't think it was intended to be much more than a discussion of a
specific type of single antenna diversity reception plus something
about stereo-like diversity.

Example: Can someone tell me which line number offers the meaning for
Diversity?

A link to the Wikipedia page would probably have been sufficient:
http://en.wikipedia.org/wiki/Diversity_scheme
The problem is that NONE of the diversity schemes mentioned in the
Wikipedia article apply to the single antenna example under
discussion. In my never humble opinion, there's no way to provide any
form of diversity reception improvement with a single antenna, unless
one also has two feeds, going to two different receivers, and ending
in either a decision switch, or some form of intelligent combiner.

I am not interested in interpretations of Tom, nor
abstractions culled together from disjoint statements.

How about my definition? No matter which scheme is used, a diversity
reception scheme must demonstrate an improvement in availability, BER,
or SNR over a single antenna, or it's not really diversity.

I want to know
where (literally, not figuratively) Tom defines what Diversity is.

He doesn't.

I'm rather confused as to his "stereo diversity" which I guess uses
the listeners ears and brain as the decision switch or decoder. I
think he might be referring to a direct conversion receiver where one
channel is quadrature leading and the other is quadrature lagging,
resulting in a stereo-like effect.

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