[Elecraft] [Bulk] Re Elecraft] Crackling in Headphones

[Jim Bolit]

For me, the AGC is on and the RF gaIN is run at about 9 o'clock. I have not tried to see if there was any effect on the crackling noise if i vary the RF gain.
However, the crackling noise does increase intensity as I increase the AF game, however, it is not in a linear fashion i.e. the crackling noise does not increase at the same rate as the band noise.  I am only using the front panel Jack and it happens with three different sets of headphones and three different adapters quarter inch to 1/8 inch

Jim
W6AIM

.




-------- Original message --------
From: Don Wilhelm <w3fpr at embarqmail.com>
Date: 12/1/2015 6:31 AM (GMT-08:00)
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] [Bulk] Re Elecraft] Crackling in Headphones

For those with 'Crackling in Headphones', I have to ask if you are
running with AGC off?  If so, the limiter can be kicking in and cause
such crackling.
Better than running with AGC off, just leave the AGC on and if you
reduce the RF gain to counter strong signals, the AGC action will be
reduced.
I know old habits die hard, but the K3 is not the same as my old NC-100
receiver and needs to be operated differently.

73,
Don W3FPR

On 12/1/2015 9:13 AM, Jim Bolit wrote:
> Mileage does vary. I am 99% CW, and have only heard it there. It randomly comes and gpes, e c en when listening to a dead band 10 meters at midnight
>
>

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