|Joined:||Sat, Apr 4th 1998, 00:00||Roles:||N/A||Moderates:||N/A|
|how to evaluate your antenna tuner QST04/95||Jul 8th 2014, 20:08||2||374||on 10/7/14|
|how to evaluate your antenna tuner QST04/95||DJ8UL||on 8/7/14|
|in this very interesting article about measurement of loss in ant Tuners I do not understand how (Eq 1) on page 32 can be derived.
The estimated loss in dB = 5 log ( (S1 +1)(S2+1)/9(S1-1)(S2-1))
Can anyone explain to me how this equation can be derived and under what boundary conditions?
thanks, Hans DJ8UL