Jim,
With audio data modes (even if you are using SSB instead of DATA A), you
must have 4 bars solid on the ALC meter with the 5th bar flashing - that
is the NO ALC point for the K3/K3S/KX3/KX2.
If you do not have sufficient audio, the K3 will "power hunt" trying to
bring the power up to the power that was requested.
Sorry that I did not observe that you were using a data mode, or I would
have pointed to that first.
If your audio level is 'touchy', then likely one or more of the audio
controls is at an extreme (not near mid-position). Refer to the article
on my website www.w3fpr.com to see how to set the audio to your best
advantage.
73,
Don W3FPR
On 12/2/2019 3:29 PM, Jim Kennedy wrote:
Hi again Don, this morning on a cold start the K3 power indicator tracked with the Bird watt meter.
Technically competent and not one to give up easily I continued to trouble shoot almost to the
verge of paralysis analysis. I put the K3 on the bench and lashed it up as it were in the station
including Tigertronics USB digital interface. Fired it up and again had low power slowly climbing
operating in FT8 using the tune tab in the WSJT program to key the rig. Hmmm better check
SSB,FM,CW,AM modes. What the "H" I got full output on the Bird 43 !!! Back to TX Data
mode. Hit the tune tab in FT8 and power coming up slowly again ?? Something wrong in the TX DATA
mode ?? Well as it turns out, somehow the TX audio setting on the Tigertroncis USB interface got
reduced and it was a simple matter of not enough transmit audio in TX Data mode. Turned up TX audio
on the Tigertronics USB interface less than one division and "voila" full power output.
I'm still a little puzzled about the symptoms but for now my K3 is back in operation. Thanks to
everyone who offered suggestions and help. This is a great group of hams. Excuse me while I go
wipe the egg off my face. Jeesh !
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