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Re: S-band helix and copper oxide



I just sprayed mine with acrylic paint. People are successfully making helix
antennas out of #14 FEP-insulated wire and this should be less lossy.

73,

John
KD6OZH

----- Original Message -----
From: "Francesco Messineo" <iz5dwf@AMSAT.Org>
To: <amsat-bb@AMSAT.Org>
Sent: Monday, 23 July 2001 15:02 UTC
Subject: [amsat-bb] S-band helix and copper oxide


> Hi all,
>
> I almost finished my 30-turn S-band helix and I noticed that the copper
> tubing already started to show a good amount of oxide over it.
> Is there a way to avoid the oxide? I thought about painting the whole
> helix with wather resistant varnish, but I don't really know if it can
> later the properties of the antenna.
> Of course I could even silver-plate it but would it be worth it?
> Thanks.
>
> --
>
> _ _ _ ___   ___ _ ___ ___   ___ ___ _ _ _   _ _ _ ___ ___   ___ _ _   _
>
> Francesco Messineo iz5dwf@amsat.org
> _ _   ___ ___ _ _   _ _ _ _ _   ___ _ _   _ ___ ___   _ _ ___ _
>
> ----
> 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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