On Wed, 30 Nov 2005 17:08:27 GMT, Cecil Moore wrote:


Owen, it's pretty obvious that you were manufactured with a
lower tolerance (+/- 0.1%) than I was (+/- 20%). :-) Over on

Perhaps...

Now, I think you have told us over several articles that you are using
an SGC500 into a 30 ohm load on 7.15MHz. That 30 ohm load is a result
of feeding a dipole with 90' of ladderline, which I estimate has 0.9dB
of loss under those circumstances.

If your transmitter was delivering 500W to the feedline, about 100W is
lost in the feeder.

Do you know how much power your amplifier delivers to the feedline? It
is likely that with a load VSWR of 1.7 it may have reduced output, it
is also possible that it is delivering even more than 500W to the low
Z load.

Owen
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