[TowerTalk] Full Size Moxon is Up

Dick Green WC1M wc1m at msn.com
Mon Mar 17 21:50:38 EDT 2008


Can this mod be done to a 40-2CD?

73, Dick WC1M

> -----Original Message-----
> From: Tim Duffy K3LR [mailto:k3lr at k3lr.com]
> Sent: Monday, March 17, 2008 5:03 PM
> To: 'Ron Chambers'; 'David Gilbert'
> Cc: TOWERTALK at contesting.com
> Subject: Re: [TowerTalk] Full Size Moxon is Up
> 
> Congrats Ron! You will really like this antenna!
> 
> We used a stack of these antennas during the past 4 DX contests for
> our 40
> meter second station and they worked great!
> 
> For those wanting the conversion document (CushCraft XM-240 to W6NL -
> Moxon), it is available on http://www.k3lr.com Click on STATION
> ENGINEERING
> - then 1st topic.
> 
> 73!
> Tim K3LR
> 
> -----Original Message-----
> From: towertalk-bounces at contesting.com
> [mailto:towertalk-bounces at contesting.com] On Behalf Of Ron Chambers
> Sent: Monday, March 17, 2008 3:38 PM
> To: David Gilbert
> Cc: TOWERTALK at contesting.com
> Subject: Re: [TowerTalk] Full Size Moxon is Up
> 
> Full-size Moxon is finally up and installed on the KC5FU Contest
> Station
> Multiplier Tower.
> 
> I think some of you had questions after it went up, but I don't recall
> who?
> 
> Ron/N5QQ
> 
> 
> 
> 
> On 10/18/07, Ron Chambers <rwchambers at gmail.com> wrote:
> >
> > This weekend or maybe next, we (N5QQ/W5WW) should have Dave Leeson's
> 2
> > elem 40m MOXON up and running. Will offer our comments afterwards.
> K5MR
> > got his up a few months back and seems to be pleased, well, until
> the
> > lightning storm fried his rotor!
> >
> > More later...
> >
> > Ron
> > N5QQ
> >
> >
> >  On 10/17/07, David Gilbert <xdavid at cis-broadband.com> wrote:
> > >
> > >
> > >
> > > Force 12's own website says their more recent coil-loaded Delta
> 240 is
> > > intended to replace the older linear loaded EF-240S, their
> explanation
> > > being:
> > >
> > > "The most difficult aspect of the antenna was tuning the elements
> to the
> > > proper frequencies for maximum performance.  This is because the
> linear
> > > loading had variances during assembly."    see
> > > http://force12inc.com/F12-Delta-240-140-Info-1.htm
> > >
> > > Several reviews on eHam.net additionally report problems with the
> stiff
> > > Alum-O-Weld loading wires/**/ breaking, so I suspect that also had
> some
> > > impact on F12's decision to create the Delta 240.  In theory, the
> Delta
> > > 240 is similar to the OptiBeam OB2-40 (the choice I made as well),
> but
> > > the Delta 240 elements are a bit shorter and I'm sure the OptiBeam
> is
> > > more ruggedly built.
> > >
> > > Dave   AB7E
> > >
> > >
> > >
> > > john at kk9a.com wrote:
> > > > I'm not sure that linear loading is as efficient as some
> manufactures
> > > claim
> > > > and some models require a lot of adjusting of the linear loading
> wires
> > > for
> > > > the antenna to perform properly.  I personally prefer a loading
> coil
> > > and
> > > > when looking for a small 2el beam for P40A, I choose the
> OptiBeam
> > > OB2-40.
> > > > The coils are massive, the antenna is well constructed and easy
> to put
> > >
> > > > together.   My second choice (actually first choice if budget
> ruled
> > > out the
> > > > OptiBeam) would be the Cushcraft XM240.
> > > >
> > > > John KK9A
> > > >
> > > >
> > > >
> > > _______________________________________________
> > >
> > >
> > >
> > > _______________________________________________
> > > TowerTalk mailing list
> > > TowerTalk at contesting.com
> > > http://lists.contesting.com/mailman/listinfo/towertalk
> > >
> >
> >
> _______________________________________________
> 
> 
> 
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