[600MRG] Fwd: Paralleling Wires in Antennas

[William E. Isakson]

That does not surprise me at all.
Bill

--------


Bill Isakson     AC6QV
Roseburg, Oregon USA
bill.isakson at gmail.com



On Fri, May 5, 2017 at 12:45 PM, Laurence KL7 L <
hellozerohellozero at hotmail.com> wrote:

> 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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