[Elecraft] KAT100 and external watt meter question

[Dave Gingrich K9DC]

The short answer is Yes.

What you have proven here is that the antenna tuner does not really change 
the characteristics of the antenna system. The SWR at the end of the coax 
is unchanged (as indicated by the readings when your wattmeter was located 
outside the tuner). The coupler simply adjusts for the mismatch as best it 
can, trying to provide a 50 ohm load to the transceiver.

Dave K9DC

At 07:19 1/30/2003 -0800, Glenn Maclean wrote:
>I have a question as to what is the best way to use an external watt meter?
>I have a DAIWA CN-101L external watt meter. I originally had the K2100 RF
>out going to RF IN on the KAT 100 and ANT1 on the KAT100 going to connector
>labeled  TR  on the external watt meter and then the antenna connected to
>the connector labeled ANT on the external watt meter. I was getting a good
>match according to the K2100 display and the KAT100 LED's. The external watt
>meter however was showing high SWR on some bands especially 30 meters. On 40
>meters and 20 meters the external watt meter, KAT100 and K2100 SWR displays
>all agree. On other bands the external watt meter showed very high SWR. I am
>using a Carolina 40 Windom antenna by Radio works.
>
>I re-arranged the configuration of the watt meter by connecting the RF out
>from the K2100 to the TR connector on the external watt meter. Then the ANT
>connector on the external watt meter goes to RF in on the KAT100. Then I
>connected the antenna to the ANT1 on the KAT100. I then went through the
>bands. The KAT100 re-adjusted the settings on all bands. Now the external
>watt meter shows matched power out readings compared to the K2100 display.
>The SWR is low on all the bands according to the external watt meter, KAT100
>and K2100. Is this the best way to have an external watt meter connected?



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Dave Gingrich, K9DC - Indianapolis, Indiana  USA
K2 #2211, K1 #931, QRP-L #2376, ARS #1109,
FPQRP #389, IRLP 4730/5730, k9dc.ampr.org
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