[Elecraft] K3 Popping noise in headphones??

[Mike K2MK]

Hi Jim,

I have an older K3 with new SYN boards. I also have the 500Hz and 200Hz
filter. I just tested it on CW and I can hear a very faint pop when turning
the bandwidth knob. As you noted, it seems to be present only at the narrow
settings. I start to hear it when changing from 350 to 300 and below. It's
loudest when changing from 150 to 100. 

Having said that, it's faint to the point that I can't be sure if it was
there before the SYN changeover or not. It certainly doesn't bother me even
with high audio levels.

73,
Mike K2MK


Jim Bolit wrote
> I just got my K3 back from Elecraft.  They did the once over and installed
> the new SYN boards.
> 
> I have noticed a "popping" noise in the headphones as I change the
> bandwidth
> control, but ONLY as I transition from 200 Hz, 150 Hz, 100 Hz and 50 Hz. 
> I
> have only checked this in the CW mode.
> 
> This popping noise was not there before sending the rig in.
> 
> I have the 500 Hz and 200 Hz crystal roofing filters installed, which is
> the
> same configuration as I had before sending it to Elecraft.
> 
> Any thoughts?
> 
> Tnx
> Jim
> W6AIM





--
View this message in context: http://elecraft.365791.n2.nabble.com/K3-Popping-noise-in-headphones-tp7609194p7609212.html
Sent from the Elecraft mailing list archive at Nabble.com.