[TowerTalk] BALUN revisited again

[Jim Thomson]

Date: Fri, 8 Apr 2016 06:58:46 -0700
From: Grant Saviers <grants2 at pacbell.net>
To: Kelly Taylor <ve4xt at mymts.net>, Patrick Greenlee
<patrick_g at windstream.net>
Cc: towertalk at contesting.com
Subject: Re: [TowerTalk] [Bulk] Re:  BALUN revisited again

It is difficult to make a single choke for 40 to 6m but it is easy to 
put two in series on the feedline.  The K9YC tutorial has designs for 40 
to 10m and 6m.  I like using multiple type 43 or 31 small clamp ons for 
VHF, see the appendix for the recommendations.

Also, G3TXQ has a nice summary chart for chokes at 
http://www.karinya.net/g3txq/chokes/

Grant KZ1W

###  since his whips are only 17 ft each, he only has 34 ft to play with.
IE:  20-6m.     The ideal 20-6m balun has already been designed and is available.

http://myantennas.com/wp/product/bl2006-3k/

6000-8600 ohms  of RS is nothing to sneeze at.   This will totally eliminate  any 
feedline radiation.  It will also drop your noise level on RX..by a bunch...like a whole bunch.

This one is an absolute killer http://myantennas.com/wp/product/cmc-230-5k/

Jim  VE7RF