"Roy Lewallen" wrote:

But you'll feel better seeing zero "reflected" power on your meter, ...
_____________

The meter indication will be essentially zero only if the directivity of the
device measuring reflected energy is extremely good (as in 60+ dB).

The leakage of forward energy into the reflected sample that is present in
typical commercial products will lead to (mis)adjusting the load Z to
whatever produces zero on the reflected meter. However some amount of
reflected energy will be needed to cancel the leakage of the reflected
coupler, in order to obtain that "zero" reading.

And then the reverse energy is not really zero, and the true load SWR is not
really 1:1.

RF