On 5/22/2011 11:26 PM, Jeff Liebermann wrote:
On Sun, 22 May 2011 20:56:52 -0500, John
wrote:

You may be right, Jeff. But he may not have 120ft redwoods around and,
after all, this is a temporary fix until his yagi comes in.

30 years of trying to maintain a stable signal to several distant
repeaters is sufficient to convince me. Trees move and grow, causing
signals to change.

Also, temporary is a rather useless term. In my experience, if it
works, it's permanent.

The OP already said he will be putting up a yagi. Anthing he does
between now and then is temporary.

Good for you! Pat yourself on the back.

Thank you for the traditional contentious remark.

You earned it.

You spent more words debunking the suggestion than admitting that you
don't really know whether it could help or not.

True. I spent more words explaining why I suspect it will not work,
what I expect will happen, and a bit of substantiation. I consider
this a substantial improvement over the traditional one-line
pontification.

I find it more useful to encourage experimentation rather than the opposite.

Good move. And, by the
way, I have experience to the contrary at both 144 and 444 MHz. It all
depends on the location of the source and the receiver. At 2 meters,
some rotation of the antenna can sometimes be helpful.

Perhaps it would be helpful if you read what I had written. I said
that rotating the antenna might help temporarily, but that movements
of the trees, tree growth, swaying branches in the wind, and possibly
sources of reflections, will soon negate any temporary benefits. If
the yagi is going to arrive shortly, then tilting the antenna is
probably a useful exercise.

I did read what you had written. So?

Note that we are not concerned with GHz.

Topic drift follows:
Since you mentioned GHz,

*You* are the one who brought it up:

"The effect continues up to at least 2.4GHz. Above that,
at 5.7GHz, the signals seem to be going through the holes between the
leaves."

Perhaps you should read what you wrote.

John