I just reloaded firmware suite 2.67/1.96 and the problem exists there as well. I guess I have just never turned ON the K3 with a good signal on the VFO freq. One other thing I checked... with the AF Gain at minimum, the artifact is not there, but with even the smallest amount of AF Gain, the loud burst occurs and the "loudness" of the burst is a function of the AF Gain setting.

73,
Ken K3IU
~~~~~~~~~~~~~~~~~~~~~~~~~
Ken K3IU wrote:
I just tried power Off/On using earphones with speakers muted.I hear the same loud artifact with the earphones and through the speakers when there is a signal on the vfo freq.
73, Ken K3IU

Ken K3IU wrote:
I notice the same thing, but only when there is a signal on the frequency tuned in on the K3 when power is turned ON. AF gain set at about 9 o'clock, CONFIG:AF GAIN HI. With no signal on the tuned frequency, the loud audio does not happen. I did not notice this on previous firmware versions. Later this morning I'll reinstall previous firmware and double check.
73,
Ken K3IU
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Stewart Baker wrote:
Hi,
Since installing MCU 2.73. I have noticed that power on is accompanied by a number of loud, rather unpleasant clicks/clunks from the speaker.

73
Stewart G3RXQ
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