[amsat-bb] Re: Polarity Switch Question
kq6ea at pacbell.net
Wed Nov 25 12:36:49 PST 2009
IIRC, the default (unpowered) was RHCP.
Somewhere I have the manual for that antenna (I have one), and if I can find it, I'll check.
73, es Happy Thanksgiving!
--- On Wed, 11/25/09, David Wing <david at cdwing.com> wrote:
> From: David Wing <david at cdwing.com>
> Subject: [amsat-bb] Polarity Switch Question
> To: "'AMSAT-BB'" <amsat-bb at amsat.org>
> Date: Wednesday, November 25, 2009, 12:15 PM
> Getting really close to having
> everything installed and working on the roof!
> May get to work some birds later today if the XYL doesn't
> corner me with
> housekeeping chores in preparation for tomorrow.
> One of the antennas that I'm putting up is an old Cushcraft
> 30 element 440
> with a polarity switch. I have not been able to find
> any documentation on
> this antenna and I wonder if there is an easy way to
> determine if the
> antenna is set up for RHCP or LHCP. Clearly feeding
> 12v to the switch will
> change the polarity but I'm wondering if there is an easy
> way to determine
> what the default setting is before the switch is
> 73, David
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