[Elecraft] OT: balun rating exceeded

[Jozef Hand-Boniakowski]

Hello John:

Tnx much for the reply.  The G5RV is as straight as gravity will allow 
and the 450 ohm line is indeed perpendicular to the flattop.  I use a 
Palomar 1500CV with it and it works well.  That said, I prefer my 33 ft 
40 meter vertical with 37 radials and the 40 meter loop. 

Jozef WB2MIC

John Magliacane wrote:
> --- Jozef Hand-Boniakowski <jozef at metaphoria.org> wrote:
>
>   
>> A few years back I bought a Buxcom G5RV and running 600 watts into it, 
>> the balun that it came with was toast.  I replaced it with 10 turns of 
>> coax wrapped around a Folger's coffee can.
>>     
>
> So, you replaced the balun you normally use with New Folger's Crystals.  :-)
>
> Seriously though, I've given this situation a lot of thought, and I'm not
> thoroughly convinced an unshielded choke located in the nearfield of a
> radiating structure would necessarily attenuate currents flowing on the outside
> of the transmission line's shield.
>
> I think even a perfectly functioning, perfectly shielded balun *at the antenna
> feedpoint* might be somewhat moot unless the dipole is perfectly straight, and
> the feedline is run exactly perpendicular to the dipole (to equalize coupling
> to either side of the antenna).
>
> By the same token, I've often wondered just how "balanced" a balanced feedline
> really is under similar circumstances.  Maybe twisting the line might help
> improve transmission line balance.  Maybe using a tuner that can compensate for
> any voltage/current imbalance might be advantageous, as well.  
>
> There are many complicating factors when it comes to antenna installation and
> operation.  Fortunately, few, if any, turn out to be of much significance in
> the grand scheme of things...
>
>
> 73, de John, KD2BD
>
>
> Visit John on the Web at:
>
> 	http://kd2bd.ham.org/
> .
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>
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