[1000mp] Litz wire, etc.

[Tom Rauch]

> Regarding Litz wire and lower frequencies -- if the FCC decides to
> give us an LF allocation (136 or 160 kHz?) I plan to get on the band. 
> Even my 120 ft. vertical will need a relatively large loading coil for
> those frequencies, and I had set aside some Litz wire to wind a single
> layer coil for that purpose.  Are you saying that using the Litz wire
> is probably unnecessary?  

Yes, it is probably unnecessary.

Litz wire increases conductor resistance for a given wire diameter. 
It decreases eddy current losses in the wire. 

In a single layer solenoid winding, eddy currents in the winding are 
not a problem. Litz wire will reduce Q, all other things equal. 

If you use a multi-layer coil, the eddy currents might be a factor 
and Litz wire could help Q. 

By the way, insulation has a large effect on coil Q as does turn-to-
turn capacitance. Be sure whatever wire you use has a good dielectric 
that does not unduly increase turn-to-turn capacitance.73, Tom W8JI
W8JI@contesting.com