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March 1st 07, 01:40 PM
posted to rec.radio.amateur.antenna
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tuner - feedline - antenna question ?
Jeff wrote:
What utter rot. The TDR indicates a discontinuity that is IN ADDITION to the one that gives you your result. Ignoring that discontinuity will certainly give you the wrong answer, regardless if which domain you are working in!!! When line loss is given in watts, the discontinuity at the source certainly has an effect. When line loss is given in dB (10x log of a ratio), the discontinuity at the source has NO effect. The discontinuity at the source has NO effect on the RATIO of two powers. -- 73, Cecil http://www.w5dxp.com |
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