[time-nuts] GPS ceramic patch in what plastic housing?
stanley_reynolds at yahoo.com
Sun Sep 5 17:27:23 UTC 2010
The plastic may also function as a lens particularly the corners of the box
figure 2 shows a polyethylene lens.
----- Original Message ----
From: Peter Krengel <krengeldatec at gmx.de>
To: time-nuts at febo.com
Sent: Sun, September 5, 2010 11:12:05 AM
Subject: [time-nuts] GPS ceramic patch in what plastic housing?
I just did some experiments using a ceramic patch antenna inside a
small plastic (80 x 30 x 20mm) screw box and experienced much bader signals at
The plastic is marked as PS (I guess polystyrole ?). Further experiments
covering a GPS with the same kind of box seemed to effect the signals
too. On the other hand covering the patch with a flat pcs of the same
material didnt effect the antenna.
Is there possibly a cavity effect?
What to take best?
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