[AMRadio] RG8X


Bry Carling bcarling at cfl.rr.com
Sat Dec 9 06:36:01 EST 2006


That is right, Mark. I was using RG8X around 1980 also...
Well before there were any cellphones in the 
neighbourhood!

73 - Bry, AF4K

From:           	W1EOF <w1eof at hamnutz.com>
 
> I agree with Jim except I'm not sure about the part "RG-8X came out after
> cellular hit the market".
> 
> I started using RG8X about 1980 or so. Not many people around here had
> cellphones until the mid-90s. It has always worked great for me on
> 50/144mhz. Also on a couple of 50ohm antennas. Most of what I do uses
> ladderline now. It's good for low-moderate power.
> 
> 73,
> 
> Mark W1EOF
> 
> > -----Original Message-----
> > From: Jim Wilhite [mailto:w5jo at brightok.net]
> > Sent: Friday, December 08, 2006 3:47 PM
> > To: Discussion of AM Radio in the Amateur Service
> > Subject: Re: [AMRadio] RG8X
> >
> >
> > Well Rick, RG 8X came out after cellular hit the market.  It
> > is small and reasonable flexible.  It is about the same size
> > as RG 59 and has a bit more loss than RG 213.  So it is
> > perfect for UFH frequencies and installations in an
> > automobile.
> >
> > Some of it has foam core around the center conductor and I
> > would not use that at all.  Should you kink or bend it too
> > much, the foam will loose it circular shape allowing the
> > impedance to change at that site.  You can avoid that by
> > following the installation rules of all wires.  The bend
> > radius of wires of any sort is 10 X the diameter.  So if you
> > have a .5 inch cable then the bend radius is 5 inches.
> >
> > According to the specs it will handle 1500 watts.  If you do
> > it, be careful of installing connectors.  Should you
> > overheat the connector the heat will deform the foam near it
> > and that can cause problems.  I personally don't like the
> > stuff, but that is my personal preference.
> >
> > Jim
> > W5JO
> >
> >
> >
> >
> > > Has anyone used this coax (RG8X) in lengths of about 100'
> > > for legal limit AM work?  If so, how does it compare loss
> > > wide to the larger coax on 75 meters?
> > >
> > > Thanks,
> > > Rick
> >
> >
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