[Elecraft] K3 Internal Tuner Question

[Rick Bates]

Let me see if I can correctly state, with clarity for all to understand so
this thread can die peacefully and we can move on (please?).

The K3 puts out power into an internal tuner (if installed) and then to an
SO-239 at the rear of the radio.  If the tuner is in bypass, the impedance
is very close to 50 ohm resistive at that connector.  In this case, any SWR
meter (bridge) downstream to the antenna will read the SWR (AT THAT POINT IN
THE FEEDLINE which may/not agree with the K3 reading).

If the tuner is NOT in bypass, the impedance at the same SO-239 will be
+-10:1 of 50 ohms.  Since any other SWR meter (bridge) between the K3 and
the antenna is probably NOT seeing the expected 50 Ohm impedance, the
reading of OTHER than the K3 meter will be called into question and more
than likely wrong.  

Repeating, when the internal tuner is used, the K3 meter is the only one
that is accurate.

Thank you and Happy New Year,
Rick wa6nhc