CQ-Contest
[Top] [All Lists]

Re: [CQ-Contest] Seeking mono-band Telrex info

To: "'Paul Cassel'" <paul@ve3sy.com>, <cq-contest@contesting.com>
Subject: Re: [CQ-Contest] Seeking mono-band Telrex info
From: "David Robbins K1TTT" <k1ttt@arrl.net>
Reply-to: k1ttt@arrl.net
Date: Mon, 2 Jul 2007 21:33:05 -0000
List-post: <mailto:cq-contest@contesting.com>
The feed point was 50 ohms in all of them I know of.

Note that the 6 element and longer ones benefit greatly by running them
through an optimizer like yo.  The 6 element 20m improves quite a bit by
shortening the 3rd director to make it a long boom 5 element, the 8 element
ones also optimize down to 5 active elements.  I never got much improvement
on the 3 or 4 element ones though.  The last long 10m one I played with was
a great 11m antenna by their design, it needed lots of adjustment to be
decent on 10m.


David Robbins K1TTT
e-mail: mailto:k1ttt@arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
 

> -----Original Message-----
> From: Paul Cassel [mailto:paul@ve3sy.com]
> Sent: Monday, July 02, 2007 04:10
> To: k1ttt@arrl.net; cq-contest@contesting.com
> Cc: 'Paul VE3SY'
> Subject: RE: [CQ-Contest] Seeking mono-band Telrex info
> 
> OK - now the lights are starting to come on.  I saw the screw holes and
> thought a previous owner was attempting to secure a better electrical
> connection.   As I indicated - the 5 page manual that I have leaves a lot
> of
> detail to the imagination.
> 
> Any idea on the feed impedance of the T match feed?
> 
> Paul
> 
> > -----Original Message-----
> > From: cq-contest-bounces@contesting.com [mailto:cq-contest-
> > bounces@contesting.com] On Behalf Of David Robbins K1TTT
> > Sent: Sunday, July 01, 2007 3:02 PM
> > To: cq-contest@contesting.com
> > Subject: Re: [CQ-Contest] Seeking mono-band Telrex info
> >
> > On telrex the other element joints were usually secured by a screw
> through
> > pre-drilled holes so there was only one possible adjustment on the
> > elements
> > at the tip.
> >
> >
> > David Robbins K1TTT
> > e-mail: mailto:k1ttt@arrl.net
> > web: http://www.k1ttt.net
> > AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
> >
> >
> > > -----Original Message-----
> > > From: cq-contest-bounces@contesting.com [mailto:cq-contest-
> > > bounces@contesting.com] On Behalf Of Paul Cassel
> > > Sent: Sunday, July 01, 2007 13:48
> > > To: cq-contest@contesting.com
> > > Cc: 'Paul VE3SY'
> > > Subject: [CQ-Contest] Seeking mono-band Telrex info
> > >
> > > I'm in the process of replacing my 3 element Hy-gain mono-banders with
> > the
> > > 5
> > > element 15M532 on 15 and 10M5325 on 10.  The 20 m is 4 elements
> however
> > I
> > > have no manual and am unsure of the model number.
> > >
> > > We have successfully re-assembled the 10 and 15m antennas however the
> > > manual
> > > only shows measurements for the tip section.  Since the 15 and 20 m
> > models
> > > have multiple sections in each element, the tip measurements alone
> does
> > > not
> > > make much sense as the other sections have quite a range of overlap.
> > >
> > > Does anyone out there have center of boom to tip measurements for
> these
> > > antennas?   I would also appreciate a copy of the 4 element manual for
> > > same.
> > >
> > >
> > > Thanks everyone
> > >
> > > Paul VE3SY
> > >
> > >
> > >
> > > _______________________________________________
> > > CQ-Contest mailing list
> > > CQ-Contest@contesting.com
> > > http://lists.contesting.com/mailman/listinfo/cq-contest
> >
> > _______________________________________________
> > CQ-Contest mailing list
> > CQ-Contest@contesting.com
> > http://lists.contesting.com/mailman/listinfo/cq-contest


_______________________________________________
CQ-Contest mailing list
CQ-Contest@contesting.com
http://lists.contesting.com/mailman/listinfo/cq-contest

<Prev in Thread] Current Thread [Next in Thread>