[Elecraft] BL2 Question Follow Up

AA5CK mmmtt at itlnet.net
Sun Oct 22 14:26:07 EDT 2006


Hi David

Don't get the cart in front of the horse or sell the KAT1 short.  You 
may not need a balun!

Build your antenna first and see if the KAT1 has any problems on any of 
the bands. If so, try varying the length of the antenna or feed-line in 
small increments until you find a combination the KAT1 likes.

I ended up with an antenna about 100ft long with about 30ft of twin-lead 
that tuned up on 40 thru 15 FB as one of the portable antennas used with 
my K1. Other combinations should work as well!

If you are locked in on Antenna or feed line length and having problems 
the BL2 is there for your rescue!

I use one to tame a Double Extended Zepp at the home QTH on a couple of 
bands the KAT100 needs help with.

I haven't enclosed my BL2 but that doesn't sound like a bad idea.

I normally use a battery with my K1 so everything is isolated from 
ground. Connecting a ground would upset feed line balance whether it was 
coax or twin-lead.(Lewallen, W7EL Ant Comp.#1 p.159)

Good Luck and let us know what you end up with.......Ted......aa5ck



David Dietrich wrote:
>  
> Howdy Everyone,
>
> I am seriously considering the purchase & construction of a BL2 switched balun so I can construct
> a lighter dipole antenna for field use than the dipole I have been using with my K1-4 (#2051).  
>   


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