Rich,
I assume you are using the internal ATU. If so, the external wattmeter
will not change - it will show the SWR into the antenna, and not at the
input to the internal ATU.
An ATU does not change the antenna SWR, it only adds L and C in a
combination that will make the PA transistors in the transmitter 'happy'
which allows maximum power output.
73,
Don W3FPR
On 1/28/2018 7:31 PM, Rich Arland wrote:
While attempting to get Z60A on 40M last night I ran into a problem that I
never encountered before.
My KX2 has the built in auto ATU. I took the output from the rig into a QRP SWR/PWR bridge and then
into my 40M EDZ and hit the "ATU" on the rig. "Click, Buzz" and the rig came up
with a 1.0-1 SWR reading. HOWEVER, my QRP bridge was pegged in reverse indicating that there was no
match.
Earlier I had tried this set up on my 20M Yagi and it worked great. The rig
gave me 1.0-1 and the analog meters on the QRP bridge did the same.
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