"Cecil Moore" wrote in message
. ..
Jim Kelley wrote:
Cecil Moore wrote:
Here's the example sans the Bird. Between the tuner output
and the load, where exactly is the actual SWR = 1:1 and where
exactly is the actual SWR = 2.25:1? Answer: nowhere!
XMTR--tuner---1 WL 75 ohm coax---50 ohm load
And the answer would be different still in this circuit.
XMTR---1/4 WL 75 ohm coax---50 ohm load
No, it wouldn't. The answer is exactly the same. *NOWHERE* is
the SWR 1:1 or 2.25:1. In both examples, the SWR on the coax
is 1.5:1. The SWR is *always* set by the relationship of Z0
to the load. In both examples above, that relationship is
*identical*.
Amazin', what happens when you change the circuit!
Z0 didn't change. The load didn't change. Therefore, the
SWR didn't change. What exactly do you think changed?
--
73, Cecil http://www.qsl.net/w5dxp
obviously the problem here is that cecil thinks he is the only one that
knows better than to try to measure reflected power with a 50 ohm meter in a
75 ohm coax.