[Elecraft] K3: KRX3 question

[Bill W5WVO]

With regard to diversity reception on bands other than 160m --

When 6-meter sporadic-E is very intense and present over a fairly large area
between two stations, a phenomenon occurs where the signal will come in
alternately at a higher angle and at a lower angle, fading back and forth,
on average, every second or two. I've confirmed this by switching back and
forth between my high/low yagi with the StackMatch while receiving such a
signal.

I look forward to that "someday" when I acquire a KRX3 and can try diversity
reception on 6 meters. The configuration would be my vertically-stacked 6m
yagis each feeding a separate receiver directly. (And of course driven
through the StackMatch on transmit, as they are now.)

The exact physical model of sporadic-E propagation that is causing this
phenomenon is open to some debate, but it is clearly happening -- when the
Es is active and complex enough to support multiple-angle paths. Using
diversity reception from a two-stack of identical yagis sounds very
intriguing, and would certainly work just as well as feedline-combining even
when this Es phenomenon isn't occurring strongly.

Bill W5VWO
DM65

----- Original Message ----- 
From: "Björn Mohr" <bm at broadcast.se>
To: "Elecraft Reflector" <elecraft at mailman.qth.net>
Sent: Monday, July 07, 2008 9:10 AM
Subject: Re: [Elecraft] K3: KRX3 question


> Bill,
>
> I find the diversity option interesting and I imagine that it will be a
very
> useful feature on topband. In what other situations do you find it useful?
>
> I have never tried diversity myself, what would the difference be between
a
> filter matched to the specs provided Elecraft and a set of un-matched
> filters?
>
>
> 73 de Björn /SM0MDG
>
>
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