[Antennas] Need a bit of wire advice

Thu, 07 Feb 2002 15:34:08 -0500

The 'built-up crud' is oxidation.  
Copper Oxide and/or copper sulfate [IF sulfur is absorbed from the
atmosphere], are both corrosive and have higher resistance to electron
flow .. at DC or RF.  Connections with 'crud' will be higher resistance
.. affecting the impedance of the antenna.
Don
N8DE

"Lefczik, Larry D" wrote:
> 
> But the question WAS "how will all the built up crud affect it?"
> 
> > ----------
> > From:         David W Sher[SMTP:[email protected]]
> > Sent:         Monday, February 04, 2002 7:33 PM
> > To:   [email protected]
> > Cc:   [email protected]; [email protected]
> > Subject:      Re: [Antennas] Need a bit of wire advice
> >
> > Also, don't forget Menard's (no, I have no connection with them!).  They
> > also have lots of different colors, if you want to get fancy.
> > Dave          W9LYA
> > What wrought doG hath?
> >
> > On Mon, 04 Feb 2002 13:11:00 -0600 "George, W5YR" <[email protected]> writes:
> > > Hi, Bob
> > >
> > > 1. it doesn't matter which you use as far as antenna performance is
> > > concerned. That crud is probably just the normal corrosion layer
> > > that
> > > copper wire gets and it has no practical effect on how the antenna
> > > works.
> > >
> > > 2. stay away from Radio Shack for antenna wire! Got to a Home Depot
> > > or
> > > Lowe's and get 500 ft of #14 insulated for about $15. I have used it
> > > for
> > > years and it too is very hard to see in the air.
> > >
> > > 72/73/oo, George W5YR - the Yellow Rose of Texas
> > > Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
> > > Amateur Radio W5YR, in the 56th year and it just keeps getting
> > > better!
> > > QRP-L 1373 NETXQRP 6 SOC 262 COG 8 FPQRP 404 TEN-X 11771
> > > Icom IC-756PRO #02121  Kachina #91900556  IC-765 #02437
> > >
> > > All outgoing email virus-checked by Norton Anti-Virus 2002
> > >
> > > [email protected] wrote:
> > > >
> > > > Hi Gang,
> > > > I have a lot of 14 GA unsulated wire for an antenna that is ready
> > > to go up.
> > > > But after looking at the 15-M antenna that has only been out in
> > > the weather
> > > > for a summer it sure looks cruddy.
> > > > I get this bare strand wire for free but how will all the built up
> > > crud
> > > > affect it?
> > > > RS has # 14 insulated wire in a 100 foot spool at $21.95 and on
> > > the spool it
> > > > says indoor/outdoor.
> > > > The color is brown and not as easy to spot.
> > > > So use the bare wire or insulated?
> > > > Thanks
> > > > Bob
> > > > WA2HOQrp <tm>
> > >
> > > - - -
> > >
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