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Re: Black & White Question



I should say that "cooking the feed" is almost the truth, ... well I
certainly almost cooked myself back in 1995 when I put the beta-test
aluminium dish up, ... it caught the sun and reflected back at me and gave
me a very nasty burn.

----- Original Message -----
From: "John Stephensen, KD6OZH" <kd6ozh@gte.net>
To: "Paul Willmott" <pwillmott@northrock.bm>; "AMSAT-BB"
<amsat-bb@AMSAT.Org>
Sent: Tuesday, July 24, 2001 12:26 AM
Subject: Re: [amsat-bb] Black & White Question


> I think that any paint will diffuse the light enough to prevent cooking
the
> feed and a light color will prevent the dish from heating upon too much.
How
> about light blue to match the sky?
>
> 73,
>
> John
> KD6OZH
>
> ----- Original Message -----
> From: "Paul Willmott" <pwillmott@northrock.bm>
> To: "AMSAT-BB" <amsat-bb@AMSAT.Org>
> Sent: Tuesday, 24 July 2001 03:10 UTC
> Subject: [amsat-bb] Black & White Question
>
>
> > Hi All,
> >
> > In the next few weeks I'll be putting together a new dish for Mode S. I
> live
> > in a rather salty environment so will have to protect the dish with
paint
> or
> > varnish. The last dish I put together around 1995 was varnished, it
still
> > works but don't look too sharp now.
> >
> > So this time I was thinking about using car paint to make the new dish
> look
> > better on the mast, ... but what colour?
> >
> > It gets very hot here so I'm not sure about using white paint, ... the
> temp
> > was 42C two weeks ago on the roof, ... the white may reflect too much
into
> > the preamp, .... then again black paint may absorb too much heat and
warp,
> > .... so anyone got any ideas on this for a colour that best suits a hot
> > clime? I'm not an expert in thermal stuff as you can tell!
> >
> > Cheers
> > Paul, VP9MU
> >
> >
> > ----
> > Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> > To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
>

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