For me it is more of a toy than a practical tool. I'm not very good
at interpreting the images. My software does false coloring of
sea surface and cloud tops so that provides some useful info. I
haven;t noticed any real difference between my original turnstile
antenna, homebrew copper/PVC Quadrifilar antenna, and my current
commercially made stainless steel quadrifilar antenna. Maybe skin-effect
has something to do with it since to os RF.

Doug
s/v Callista

"Jim Woodward" jameslwoodward at attbi dot com wrote in message
...
We had a QH for weather satellites on Swee****er and I might do the same
on
Fintry -- as a practical matter it's a fun toy, but you need other weather
information as well.

Why not just use copper -- the conductivity of stainless is only 2% of
copper, so there are surely some issues there?



--
Jim Woodward
www.mvFintry.com


.
"Glenn Ashmore" wrote in message
news:C5Csb.235$0K4.15@lakeread04...
Over the years I have built several Quadrafiliar antennas for 137.5 Mhz
polar orbiting weather satellite photos. I have the dimensions pretty
well refined to get horizon to horizon reception but they have all been
copper tube on a PVC pipe. I have some 3/8" stainless tube left from
the watermaker project and thought I might use it and a piece of FRP
tube to make one that would hold up at sea. I have a couple of
questions about changing over to stainless but don't know where to ask
them.

There is plenty of info on the web but I can't seem to find a newsgroup
or forum to ask questions. Anyone else here dabble in quadrafiliars?


--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com