Topband: Mica capacitors for antenna matching.

Art k6xt at arrl.net
Mon Jul 27 10:01:18 PDT 2009


My 80/160 GP doesn't seem to need much matching, or with a feed Z around 
35 ohms on 80 I'm just too lazy. The amps load fine at the far end of 
300 ft of coax. So I wound a 85mH coil installed from feed to gnd to 
solve the static deal. 85mH had no effect on feed Z as measured both 
with a Autek VA-1 (at the ant) and observed at the shack. 85mH isn't 
much - probably like none - lightning protection but does bleed off the 
static.
73 Art

Tom wrote:
[snip]
>> rejection viewpoint rather than the high-pass configuration (inductor to 
>> ground), BUT the high pass offers better lightning protection.
>>
>> 73
>> Tom G3OLB
>>     
>
>   


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