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May 20th 20, 07:16 AM
posted to rec.radio.amateur.antenna
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Real SWR?
Hi everyone.
I have build a simple vertical antenna using 4NEC2. After the simulations, the software gives me a SWR (50 ohm) of 3.55 and an efficiency of 92.91% The report says, infact, that with a transmission power of 100 Watt, 7 Watt are losed and 93 Watt are radiated on air. But looking for the official tables of SWR, i see that a ratio of 3.55 of SWR corresponds to about 68% of real transmitted Power by the antenna (and 32% losed). What is the truth? Is SWR of 4NEC2 different from the official tables of SWR? Thank you very much. Giovanni Di Maria |
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