Hi all an interesting problem you may have encountered, I want to use a GPS
frequency standard inside a building with no opening windows (opening
windows are known as air conditioning in the UK :-)) )
This is part of a two day amateur microwave conference so we should have the
expertise.
I intend to try and pass the signal through a a double glazed glass window
unit (hopefully not metalised) using a couple of patch antennas. The outer
GPS antenna is active so will need a 5v supply via an inserter. Inner patch
active, outer patch passive to avoid problems of feedback. Main antenna can
be shielded from the "coupling" either physically or with a slab of
absorber.
Has anyone tried this?.... does it work?.....any gotchas?
Thanks
Alan
G3NYK
===================================
Alan,
Here I am on the top floor of a standard house, and get an adequate signal
for today's GPS receivers with simple patch antennas. One GPS I have is in
a walk-in cupboard adjacent to a north-facing outside wall. Obviously,
there are no guarantees, but you may get away with just being adjacent to an
outside wall, or getting the puck near the non-opening window (but that may
be worse than the wall).
If it /must/ be a GPS relay like you are suggesting, perhaps for multiple
receivers inside a room, I can't help. Be sure to place the puck on an
appropriate ground plane - I find a clean, unused baking tray to be perfect!
73,
David GM8ARV
--
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: [email protected]
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