[600MRG] Fwd: Paralleling Wires in Antennas

[Laurence KL7 L]

I pretty sure I managed to melt an enclosure due to losses in heating of a stainless 1/4 inch bolt with 50A plus of 137kHz RF

Laurence KL7L

> On May 5, 2017, at 9:52 AM, William E. Isakson <bill.isakson at gmail.com> wrote:
> 
> Frank, while stainless steel does not have an apparent reaction to a
> magnet, it is, in fact, ferrimagnetic (ferri, not ferro)and there will be
> hysteresis losses involved.   I think I would not use stainless steel for
> antenna wire.
> Bill
> 
> --------
> 
> 
> Bill Isakson     AC6QV
> Roseburg, Oregon USA
> bill.isakson at gmail.com
> 
> 
> 
>> On Wed, May 3, 2017 at 4:12 PM, Frank Lotito <k3dz at live.com> wrote:
>> 
>> A question about paralleling two conductors to use an antenna mast guy
>> wire as a dipole (or as part of another type of wire antenna) - For
>> example, using a stranded stainless steel guy wire with appropriate
>> insulators and cable clamps to construct a sloping dipole.  If the
>> stainless wire is paralleled with a stranded or solid conductor copper wire
>> will the resulting dipole antenna have less loss than using just the
>> stainless steel guy wire as the dipole (or as part of another type of wire
>> antenna?)  If yes, how much less, e.g. was it really worth the effort to
>> parallel the 2 different wires?  I would think that at LF and MF
>> application (where the guy is part of some type of wire antenna) its "six
>> in one, half a dozen in the other."  Maybe not so for HiFER (22 meter)
>> application where the guy can definitely accommodate a full size dipole or
>> possibly even an extended center fed zepp... ?
>> 
>> Could the paralleled wire approach have application where a "small in
>> comparison to wavelength triangular shaped one-turn loop antenna" is
>> constructed for VLF / LF / MF by using 2 guy wires. Since small loops are
>> quite inefficient (their radiation resistance is far smaller than their RF
>> resistive loss), could the paralleled stainless / copper wire approach be
>> used as a means to improve VLF / LF / MF loop antenna efficiency?
>> 
>> Oh, let me qualify, when I said parallel wires I meant the two wires are
>> in intimate contact, maybe by clamping them together every few feet, or
>> using a spiral pitch of a few feet where the copper is spiraled around the
>> stainless steel guy cable.  And I don't mean "copperweld."
>> 
>> 73 Frank K3DZ / WH2XHA
>> 
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