I bought a 3.6-V Trimble Bullet GPS antenna on ePay and wish to use it with
my T-bolt. Rather than try to internally modify the T-bolt to provide a
3.6-V antenna feed, I decided to try to build an in-line dropping adapter.
I seriesed two Si diodes inside a 100 pf tubular ceramic capacitor and
installed the shrink-wrapped assembly inside a salvaged BNC-M to BNC-F coaxial
assembly. Unfortunately the completed assembly exhibits about a 4-to-1
VSWR when terminated in a 50 ohm load. Has anyone else tackled this
challenge?
The 3.6-V Trimble antenna has less gain than the 5-V version which makes
my planned antenna rcable run on the edge even without the high VSWR..
Bruce Hunter
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