[Elecraft] Re: K3 Output Isolation

Tom Childers, N5GE n5ge at n5ge.com
Mon Jul 21 12:23:02 EDT 2008


On Sat, 19 Jul 2008 12:48:45 -0500, "Tom Childers, N5GE" <n5ge at n5ge.com> wrote:

>I just installed a new direct feedline on my 6m Yagi and hooking it up to
>Antenna 2.  When I tested it I was horrified when I saw infinity SWR on my W1
>power meter.  Then I realized the watt meter was not in the 6m feedline and the
>rig was happily displaying a 1:1 SWR.
>
>Hmm, that means there is output on ANT 1 when ANT 2 is selected.  I switched the
>ANT 1 connection to a dummy load and the W1 was showing .1 watt output from ANT1
>with a 1.2:1 SWR.
>
>Is my Factory rig #806 the only rig with this leakage or is it a known issue? If
>so is there a fix for it?
[snip]

The issue was corrected this weekend when I replaced the shack to tower
feedlines for 6m, 2m and 70cm with LMR600, so the person who suggested it was
coming in on the HF feedline was correct.

73,

Tom, N5GE - SWOT 3537 - Grid EM12jq

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Essential Liberty to 
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Safety deserve neither 
Liberty nor Safety" 

An excerpt from a letter 
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Assembly to the Governor 
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