On 12/3/2025 6:42 PM, john@kk9a.com wrote:
That's a good point regarding design tradeoffs. Even if the downward lobes
are minimized in a free space design, what happens to the pattern in the
real world when there is ground and perhaps other antennas beneath the Yagi?
All good points from you, Brian, and others. I've done some simple Yagi
designs using YW, optimizing for forward gain over the needed bandwidth,
because that's what I need on the lower bands, and they're relatively
small, because that's all I can turn between the trees in my dense
redwood forest.
As to the particular 6M antennas being discussed: when I moved here 20
years ago, my QTH was pretty quiet. Now it's not, and I have strong
sources in three important directions -- Asia, Europe, and South
America. So my limiting factor is more often HEARING, rather than being
heard. Further, on 6M, my primary interest is weak signal work, which is
all concentrated within a little over 200 kHz.
73, Jim K9YC
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