[Elecraft] K3 Popping noise in headphones??

[Anthony Scandurra]

The clicks are there regardless of the level of the AF gain setting.  The
loudness of the clicks is affected by the AF gain setting, but they are
still there.

I'm using a Yamaha CM500 headset.

It is the strongest when moving between the 0.10 and 0.15 bandwidth
setting, but also occurs going between 0.15 and 0.20.

73, Tony K4QE

On Sun, Oct 18, 2015 at 1:47 AM, Jim Brown <jim at audiosystemsgroup.com>
wrote:

> On Sat,10/17/2015 11:58 AM, jim wrote:
>
>> I sent the rig in to Elecraft for upgrades AND to see if they could sort
>> out
>> the constant hiss (with the AF gain fully counter clockwise) that I heard
>> in
>> the Bose headphones with them set at "hi" sensitivity.
>>
>
> Putting on my audio engineer's hat, THAT'S the likely cause -- that is,
> the "gain staging" is all wrong. The K3 has reasonably high output from the
> headphone amp, and you should be setting the audio gain in the K3 in it's
> normal range. Turning down the K3 AF gain and setting the Bose phones for
> high is a RECIPE for hiss, and may be the cause of the clicks too.
>
> 73, Jim K9YC
>
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