[Elecraft] K3 & S9 43' Vertical

[Tony Estep]

I have a 4:1 unun that I made from a balun kit (Amidon I think). It's wound
just like a balun, but the connections going out are slightly different.
Here's a website:

http://www.iv3sbe.webfundis.net/html/UNUN.htm

<http://www.iv3sbe.webfundis.net/html/UNUN.htm>BTW, the unun works GREAT
with an end-fed wire and a well-chosen set of counterpoise wires. I get a
perfect match on 9 bands,160 - 10. The K3's ATU is magnificent.

Your antenna may match, but your radiation pattern will be poor unless you
put down radials. See the ARRL Antenna Book for lots of mind-numbing
details, or ON4UN's book for even more.

Tony KT0NY


On Mon, Mar 21, 2011 at 4:11 PM, <tjkelly at windstream.net> wrote:

> ...if the K3's atu is sufficient?  Also the instructions call
> for a 1:4 unun....