Real coax is seldom exactly 50 Ohms
Real coax has a small amount of reactance
Real coax has loss
If you don't do a SOL calibration at the antenna end you're just guessing!
73, Roger
On 6/1/16 1:20 PM, Hans Hammarquist via TowerTalk wrote:
When you want to measure the "real impedance" at the antenna, isn't it
important that you have a feeder (coax) that has the correct Zo=50 ohms all
the way?
I guess that the bridge will not read a correct antenna Z if the coax is not
perfect.
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