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

Stanley Reynolds 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 
lower elevations.
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?

Any ideas?

Thank you

Peter, DG4EK
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

More information about the time-nuts mailing list