[Elecraft] Elecraft SSB net

phils at rio.com phils at rio.com
Sat Jan 23 18:52:24 EST 2010



On Sat 01/23/10  3:47 PM , "Phil Hystad" k7peh at comcast.net sent:
> OK, I fixed the problem.  The SWR reading on the K3 meter was showing about
> a 2.8:1 SWR.  Obviously I forgot to tune through the ATU.  I did that and
> it fixed the problem.
> peh
> 
> Begin forwarded message:
> 
> > From: Phil Hystad <k7peh at comca
> st.net>> Date: January 23, 2010 3:43:45 PM PST
> > To: Elecraft Discussion List <elec
> raft at mailman.qth.net>> Subject: [Elecraft] K3: Power output low on 30
> meter band> 
> > Since putting together my K3 two weeks ago I had
> a chance to try it out on 30 meters today.  I tuned up my delta loop to 10
> meters and then noticed that the power was low.  I thought that maybe my
> meters were reading funny or something funny about the antenna so I
> switched over to my Icom 756 Pro III to try the same antenna.  It was dead
> on with a 1.1:1 SWR on the same frequency of 10.106 MHz.  And, the meters
> for the Pro III were reading about 101 watts output (two different
> meters).> 
> > So I switched the antenna back to the K3 and
> checked the SWR and it was about the same, 1.2:1 for the same frequency. 
> But, the power output is only about 65 watts even though the power adjust
> knob reads 100 watts.  I tried different readings and about 55 watts, the
> external meter power output starts to flatten out compared to the digital
> readout of the power on the K3 (the external meter is an
> LP-100A).> 
> > All other bands show good power
> output.> 
> > Any hints?  
> > 
> > 73, phil, K7PEH
> >
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