[Elecraft] K2 and wire antenna

[David Cutter]

 David

Do you mean "close to resonance" or close to 200ohm impedance ?

This is where the truly balanced matching units come into their own, but 
does anyone make them?

David
G3UNA


Cobra Ultralite
>> (www.k1jek.com) and the other is a 40 meter inverted Vee fed with 300-ohm
>> twinlead.  The tuner/balun has been able to match the first antenna on 
>> 160
>> to 10 and the second antenna on 40 to 10 (and even 80 but I never use it
>> there).  The balun has always stayed in the 4 to 1 position. I try to 
>> keep
>
> Especially in the 4:1 configuration, this sort of configuration will only 
> work if the antenna is close to resonance.  If the antenna is well off 
> resonance, the path of least resistance for the RF will through the balun 
> windings, which are a DC short, and will be an RF short if their reactance 
> is not greater than that of the antenna.  Such a configuration may appear 
> to tune, but won't actually put much power into the antenna.
>