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50 Ohms "Real Resistive" impedance a Misnomer?

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July 15th 03, 07:52 AM

Helmut Wabnig

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On 14 Jul 2003 22:32:12 -0700, (Dr. Slick) wrote:

.............
My theory is that the "real" part of the impedance is mainly the
truly resistive 50 ohms of the dummy load at low frequencies around 10
MHz or so...but as you go up in frequency, the parasitics of the dummy
load and the coax jumper cable will cause "radiation" resistance to be
mixed in with this truly real 50 ohms, giving us readings all over the
map.

What do you folks think?

Where do I get a "good" dummy load?

w.

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