[TowerTalk] Making rotator loops separate

knesbitt knesbitt at nucleus.com
Sun Aug 31 16:56:39 EDT 2003


This begs the question ..
I am getting ready to stack out and install my first "real" tower and
antenna system in next several weeks and would like to know what is the
correct way to properly install the feedline on a rotating yagi (Force12)? I
see mention of rotor loops and 2 turns around the mast, or single run direct
to balun. I had planned on using a pig-tail of LMR-400 ULTRA-FLEX between
feed (balun) and splice point on vertical run (LMR-400), below rotator. What
is the best way to minimize fatigue on the cable during rotation and
strain-relief the in-line joint? All suggestions appreciated!

73.

Kirb Nesbitt,  VE6IV


-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com]On Behalf Of on4kj
Sent: Sunday, August 31, 2003 1:39 PM
To: mjwetzel at comcast.net; K7LXC at aol.com; mcduffie at actcom.net;
towertalk at contesting.com
Subject: Re: [TowerTalk] Making rotator loops separate


Hello Mike,

If you dont want  your $ to escape from your purse...... just close it, need
no pliers.
Same thing for RF    .........hi .
But I learned over the years ( Mobile Radio install and after sales
service ) to use good connectors in critical applications such as Navy-type,
not the GP PL259's.

Jos on4kj

" You can't make a silk purse out of a sow's ear. "

----- Original Message -----
From: "Mike Wetzel" <mjwetzel at comcast.net>
To: <K7LXC at aol.com>; <mcduffie at actcom.net>; <towertalk at contesting.com>
Sent: Sunday, August 31, 2003 9:06 PM
Subject: RE: [TowerTalk] Making rotator loops separate


> Steve is 100% correct on this!  I've found this necessary even inside the
> shack.  I had bad RF problems (RF getting into keyers, computers, etc) and
> it was cured by using pliers to 'gently' seat PL-259's to coax switches,
> etc.
>
> Mike W9RE
>
> > -----Original Message-----
> > From: towertalk-bounces at contesting.com
> > [mailto:towertalk-bounces at contesting.com]On Behalf Of K7LXC at aol.com
> > Sent: Sunday, August 31, 2003 12:58 PM
> > To: mcduffie at actcom.net; towertalk at contesting.com
> > Subject: Re: [TowerTalk] Making rotator loops separate
> >
> >
> > In a message dated 8/31/03 10:36:37 AM Pacific Daylight Time,
> > mcduffie at actcom.net writes:
> >
> > > > Pl-259's are notorious for coming loose anyway, and in the loop
> > environment
> > >  > you're just asking for trouble.
> > >
> > >  I've NEVER had a PL come loose on me, even the ones that weren't
> > >  taped.  I put them on as tight as my hands will do it without tools,
> > >  and that's it.  Properly installed, they shouldn't come loose with
> > >  layers of tape over them anyway.
> >
> >     Well, you've been lucky. Hand-tight is NOT recommended. Use
> > the 2-plier
> > technique to 'gently' seat them with a barrel connector and
> > 1-plier on baluns,
> > etc.
> >
> > Cheers,
> > Steve     K7LXC
> > TOWER TECH -
> > Professional tower services for commercial and amateur
> > _______________________________________________
> >
> > See: http://www.mscomputer.com  for "Self Supporting Towers",
> > "Wireless Weather Stations", and lot's more.  Call Toll Free,
> > 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk at contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
>
> _______________________________________________
>
> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>


_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.

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