[Elecraft] K3 Popping noise in headphones??

[jim]

Tony, 

Thanks.

I also noticed there are no clicks or pops when I change the DSP with the
XFIL button.  The roofing filters change, the DSP moves to the corresponding
BW when using the XFIL button, no clicks!

Jim

W6AIM


.

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of
Anthony Scandurra
Sent: Sunday, October 18, 2015 6:47 AM
To: jim at audiosystemsgroup.com
Cc: Reflector Elecraft
Subject: Re: [Elecraft] K3 Popping noise in headphones??

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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