[Elecraft] My radio all of a sudden is so loud it blew a speaker!

[tomb18]

HiYes but it's weird that never arose in the past. The one thing that IS different this time is that the radio had a full power down. Not just the front panel.... 73 Tom 


Sent from my Samsung Galaxy smartphone.
-------- Original message --------From: Barry <k3ndm at comcast.net> Date: 2018-01-27  7:12 PM  (GMT-05:00) To: Tom <tomb18 at videotron.ca>, Elecraft <elecraft at mailman.qth.net> Subject: Re[2]: [Elecraft] My radio all of a sudden is so loud it blew a speaker! 
Tom,
     Something comes to mind. Go into the setup menu and check the AGC 
threshold. As you move it up in number, the audio output goes up, and it 
takes a greater signal amplitude before it "kicks" in. I usually use 
this when using data A to prevent AGC capture, or at least as much, by 
other signals in the passband, for instance FT8 with a received 
bandwidth of 2.5KHz. Normally, the K3 AGC is excellent and should have 
prevented what you describe unless the the AGC threshold is too high.

73,
Barry
K3NDM

------ Original Message ------
From: "Tom" <tomb18 at videotron.ca>
To: "Elecraft" <elecraft at mailman.qth.net>
Sent: 1/27/2018 6:24:40 PM
Subject: Re: [Elecraft] My radio all of a sudden is so loud it blew a 
speaker!

>Hi,
>No the AGC is On.  It's still overall several times higher than I have 
>ever heard when in High.
>That's very strange since I always had it at high and when I first 
>checked it was at High.
>So now if I put it to low is is as it has always been. Putting it at 
>high with AGC off, I will now blow any speaker attached!
>Tom
>
>
>-----Original Message----- From: Dave Hachadorian
>Sent: Saturday, January 27, 2018 5:43 PM
>To: Tom
>Subject: Re: [Elecraft] My radio all of a sudden is so loud it blew a 
>speaker!
>
>Did AGC get turned off?
>
>-----Original Message----- From: Tom
>Sent: Saturday, January 27, 2018 3:13 PM
>To: Elecraft
>Subject: [Elecraft] My radio all of a sudden is so loud it blew a
>speaker!
>
>HI,
>Ok a strange thing happened today.  I was moving my K3 from one
>rack to another and once everything was connected up I turned it
>on. Now I use an external speaker and the volume was so loud that
>it blew.  I immediately turned down the volume and went to the
>speaker in the K3.  Barely touching the volume control resulted
>in such a high volume level that I was afraid the speaker would
>blow there too!.
>I checked the menu setting for the AF Gain and it was set to high
>which I have always used since I found the audio out of the K3
>was too low for me.
>Now, I’ve had to put it at low and it seems that it is now back
>to the way it was.
>So is it really that loud on High and why would I have not seen
>this before?
>Thanks, Tom
>va2fsq.com
>
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