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Old July 3rd 15, 08:27 PM posted to rec.radio.amateur.antenna
Wayne Wayne is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 409
Default An antenna question--43 ft vertical



"rickman" wrote in message ...

On 7/2/2015 8:53 PM, Wayne wrote:


"rickman" wrote in message ...

On 7/2/2015 3:52 PM, Wayne wrote:

Why will the reflections not have losses?

Because the assumption I posed was for a lossless line. In that case,
with a conjugate match on both ends, wouldn't there be maximum power
transmission regardless of the SWR?


You aren't grasping the issue. Losses are *not* only in the transmission
line. When a reflected wave returns to the transmitter output, it is not
reflected 100%. If the output and transmission line are matched exactly,
50% of the reflected wave reaching the output will be reflected and 50%
will be dissipated in the output stage.


I don't think I've ever heard that anywhere before. Could you elaborate?


Are you suggesting that the conjugate match will reflect back to the
antenna 100% of the original reflected wave from the antenna?


Well, yes. Minus losses in matching networks and transmission lines.

In examples with lossless lines and lossless matching networks, wouldn't it
be 100%.