On 11/8/2015 10:23 PM, Jeff Liebermann wrote:
On Sun, 8 Nov 2015 18:02:19 -0500, rickman wrote:

On 11/8/2015 3:44 PM, Jeff Liebermann wrote:
You might want to grab and read this:
"The Underestimated Magnetic Loop HF Antenna V1.2"
by Leigh Turner VK5KLT
http://802.11junk.com/jeffl/antennas/magnetic-loop/_The%20Underestimated%20Magnetic%20Loop%20HF%20Ant enna_V1.%202.pdf

You may have read a previous version. The author updated it recently
and posted it to the Yahoo Magloop forum in the files section:
https://groups.yahoo.com/neo/groups/MagLoop/info
I couldn't find it posted anywhere else on the interknot, so I took
the liberty of posting it to my web pile without permission.

I just skimmed it quickly but offhand, it looks like a very good
explanation of how a magnetic loop antenna works, without going
excessively into technobabble and equations.

Thanks. I signed up for that group, but only by email. To join Yahoo
these days you have to give a mobile number and I'm not willing to do
that.

I signed up long ago and have been able to bypass that requirement.
Eventually, I'm sure Yahoo, Google, Microsoft, and others will make it
mandatory. What ****es me off is that the various vendors involved
claim that it's a security feature, when it's really a bad excuse for
cell phone calling and SMS spamming. Here's a possible solution:
http://www.burnerapp.com
Essentially, it's a throw away phone number service. I just found the
URL, so I haven't had time to try it or decode the cryptic description
on the web page.

I found a discussion of this problem which listed a website for getting
phone numbers, but it seems Yahoo won't work with this. I'm not sure
what Burner app is about, but it looks like they give you a burner phone
number which will relay texts and calls. But that just means you have
to share your phone number with *them*.


I've been getting the emails talking about this file (mostly
people saying they can't download it) but no one has made it available
outside of that group... until now.

I'm not sure of the legality or if it's ethically correct. I would
get a bit irritated if someone posted a copy of my work, instead of a
link to the original. However, as soon as I find it publicly posted
elsewhere by the author, I'll take mine down.

Technically it is copyrighted. I'm not sure if that restricts the
sharing of the file or not, I think so if he hadn't shared it openly
elsewhere. Since it is there for anyone to download, I'm not sure there
can be a problem unless he says you need to take it down.


Some interesting comments on the magloop article:
http://www.brisdance.com/vk4amz/VK5KLT.html


--

Rick