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#3
June 2nd 09, 06:58 AM
posted to rec.radio.amateur.antenna
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SWR variation with feedline length
The Bird actually measures a combination of capacitive coupled voltage and
inductively coupled current. There is a app note on the Bird website. Find: "Straight Talk About Directivity". Thanks for pinpointing that nice document. However the document dwells on the directivity of the meter, and I could not find there any mention of the impedance tolerance issue I had raised. 73 Tony I0JX |
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