[Elecraft] KX3 Faulty SWR indication

2018-02-02 Thread Dave Sublette
A few weeks ago I posted this problem, worked on it a bit, then got distracted into other projects. I am now back trying to resolve the faulty SWR issue with My KX3. The problem only occurs on 160, 80 and 60 meters. Using a known good dummy load and cable the indicated SWR on the KX3 is high

Re: [Elecraft] KX3 Faulty SWR indication

2018-01-30 Thread Peter Lambert
anuary 2018 11:38 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3 Faulty SWR indication Based on your description, I'd say there is some instability in one of the stages. The dummy load will present a uniform impedance at all frequencies, thus the SWR will be 1:1. output networ

Re: [Elecraft] KX3 Faulty SWR indication

2018-01-30 Thread Bob McGraw K4TAX
Based on your description, I'd say there is some instability in one of the stages.   The dummy load will present a uniform impedance at all frequencies, thus the SWR will be 1:1.   output network will show evidence of reflected power.   Using the ATU, it adds filtering thus eliminating the