Loud POP in speaker at turn-on (K3)

[Edward R Cole]

First: Thanks for posting your website url (saved in my favorites).

I wonder if any of you K3 owners have this phenomenon:  My K3 causes
a loud pop-pop in the speaker when I turn on the power.  It appears
that the volume is at full momentarily on turn on.  I am using an
external 4-ohm speaker (not amplified).  It does this with the
internal speaker, as well.
it does this even with volume control at minimum.  Is this normal?

Not a big problem, but it might disturb my wife's sleeping if I turn
on the radio late at night.
Note that I have the radio with mostly default settings; flat Rx-EQ


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Message: 31
Date: Fri, 08 Oct 2010 20:46:43 -0400
From: Don Wilhelm <[hidden email]>
Subject: Re: [Elecraft] K3 AGC THR doesn't go low enough
To: [hidden email]
Message-ID: <[hidden email]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

   In an effort to help those who perceive their K3 as noisy, and for
those who are not certain their AGC slope and threshold settings are not
right for their operation, I have added a page to my website.

Go to www.w3fpr.com and click on the link in the left column referring
to K3 noise and AGC settings.
It is an expansion of the post I offered earlier today dealing with AGC
settings and their relationship to K3 noise.

73,
Don W3FPR



73, Ed - KL7UW, WD2XSH/45
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[W5UXH]

I have the same thing.  It seems to be associated with relay actions.  First in one speaker channel, then a bit louder in the other speaker.  At power off there is one more pop about like the lower level first pop at power on.

Not too bad, but it was surprising to find this happening.

Chuck, W5UXH

Edward R. Cole wrote

I wonder if any of you K3 owners have this phenomenon:  My K3 causes
a loud pop-pop in the speaker when I turn on the power.  It appears
that the volume is at full momentarily on turn on.  I am using an
external 4-ohm speaker (not amplified).  It does this with the
internal speaker, as well.
it does this even with volume control at minimum.  Is this normal?