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[aprssig] GPS patch antenna alternatives

Scott Miller scott at opentrac.org
Wed Nov 28 01:27:03 UTC 2007


> hmm, you say "could be terminated".  sparkfun has this little guy:
> 
> http://www.sparkfun.com/commerce/product_info.php?products_id=8418

That's a little smaller than I need, and not easily connected without a PCB.

For a transmitter, I'd just use a wire whip.  But I'm not sure what the 
equivalent would be for GPS - is there any easy way to wind a 
quadrifilar helix?  I know Garmin does it in some of their products 
using flex circuits, but that's a little expensive to get set up.

> your catalog calls it an 18H-W.  typo?

In two places, no less.  Fixed it, thanks.

Scott
N1VG





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