[amsat-bb] Re: Your posting on AMSAT
kq6ea at pacbell.net
Sun Dec 7 21:49:36 PST 2008
The last time I did this, I used a small propane torch.
--- On Sun, 12/7/08, Mike Ryan <mryan301 at comcast.net> wrote:
> From: Mike Ryan <mryan301 at comcast.net>
> Subject: [amsat-bb] Re: Your posting on AMSAT
> To: "Dave Guimont" <dguimon1 at san.rr.com>
> Cc: amsat-bb at amsat.org
> Date: Sunday, December 7, 2008, 8:08 PM
> Thanks. So annealing is the must. What did you use to heat
> it up? I'll be
> using #8 wire. Did you have to use a bender of any type or
> just pliers?
> ----- Original Message -----
> From: "Dave Guimont" <dguimon1 at san.rr.com>
> To: "Mike Ryan" <mryan301 at comcast.net>
> Cc: <amsat-bb at amsat.org>
> Sent: Sunday, December 07, 2008 11:04 PM
> Subject: Re: Your posting on AMSAT
> >>I saw your posting on AMSAT-BB about building a
> quadfilar. I have those
> >>files and have been experimenting with various
> omnis for SAT work. So far
> >>diploes, verticals, turnstiles, and a moxon. The
> quadfilar was next on my
> >>list. I even scored some copper clad coax for the
> task. For 70 cm it seems
> >>pretty tough to do the bending and get it right.
> May I ask how you did
> >>that (a tubing bender, pliers, other) and if you
> heated the copper wire
> >>first like they suggest.
> > Anneal the copper tubing for the three copper tubing
> filars, and it is
> > very easy to shape, simply mark the dimensions on the
> tubing, and bend
> > away...the length is much more important than the
> diameter of the bends.
> > And make good solder joints...heat proof dialectric on
> the coax one,. of
> > course....teflon, and there are some others...
> > Pulling for P3E...
> Sent via AMSAT-BB at amsat.org. Opinions expressed are those
> of the author.
> Not an AMSAT-NA member? Join now to support the amateur
> satellite program!
> Subscription settings:
More information about the AMSAT-BB