[time-nuts] GPS ceramic patch in what plastic housing?

Heathkid heathkid at heathkid.com
Sun Sep 12 18:31:09 UTC 2010


I'm not sure if you're still looking for ideas but I ran across this article 
which explains in a lot of detail the design of the radome for a GPS 


73 Brice KA8MAV

----- Original Message ----- 
From: "Peter Krengel" <krengeldatec at gmx.de>
To: <time-nuts at febo.com>
Sent: Monday, September 06, 2010 3:04 PM
Subject: [time-nuts] GPS ceramic patch in what plastic housing?

> Thank you all for the nice ideas.
> During shopping I found some interesting things.
> 1. disposable sparkling wine glasses made of PE (polyethelene).
>    They are made of very thin material (just like the glass onces)
>    and the microwave oven test leave them absolutely cold.
>    The size is 3.8" (98mm) at the top and the height is about 3.2" (80mm).
>    Are they too large? What would be the best size for a cone like that?
> 2. A shoe polish set. In a 2" (50mm) dia round plastic pot there is a 
> removable sponge which is
>   covered by a on top rounded cone (like a rocket noise) made of thin PE 
> (colorless).
>   If I remove the sponge a ceramic patch can be placed inside the pot and 
> can be
>   water proofed covered by that cone. Microwave test was positive, no 
> heating.
>   The cone material seems to be very even in thickness, its no problem to 
> look through.
> I think I will try both.
> Peter, DG4EK
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