[Elecraft] BL2 Question Follow Up

[Leigh L Klotz, Jr.]

You might also compare your 44' doublet by itself and with a 25' 
extension on one side, if you have room.  That makes it into an OCF, and 
the impedance swings will be less extreme than a center-fed 40m dipole, 
particularly on 20m.  I had a 44' doublet up and found improved 
performance.  The last 5 feet of mine point straight down. It is an easy 
change to do and undo.
Leigh/WA5ZNU
On Sun, 22 Oct 2006 6:43 am, David Dietrich wrote:
> Whoops!  I should have added this when I was composing last night.  I 
> have the KAT1 tuner
> installed.  At the present, my four band module is for 40, 30, 20, & 
> 15.  I plan on at least
> operating on 40 & 20 for sure, and possibly 15 if the SWR isn't too 
> bad. Original message below
> for reference:
>
> 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).  I
> am planning on taking the K1 down to TX over Christmas and I don't want 
> to take the heavier dipole
> I have with me like I did this past summer.  It's rather bulky and 
> takes up valuable suitcase
> space.
>
> Here is my plan: Construct a 20 and/or 40 meter 1/2 wave dipole and 
> feed it using standard TV
> twin-lead as my feedline (found in any hardware/home improvement 
> store), and some #18 wire (I have
> some on hand).  Since the antenna would be balanced, I would attach the 
> twin-lead to the balun and
> the balun to the back of my K1.  I am thinking that this design would 
> make for a good performing,
> lightweight antenna that will be easier to pack & set up.
>
> Questions:
> 1.  Will the BL2 work well with TV twin-lead antenna I am going to 
> build?  There's no sense in
> buying it if it won't work with this antenna.
>
> 2.  What kind of luck have those of you who have built it had with 
> fitting it into some sort of
> plastic or metal enclosure?  What works and what won't?
>
> 3.  Will I need to do any sort of grounding with this?
>
> I'd really like responses from those who either (A) own one OR (B) do a 
> lot of antenna homebrewing
> & experimentation.
>
> Many thanks,
>
> David
> KC9EHQ
> K1-4 #2051
>
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