[Elecraft] K3 Harmonic Distortion

[Doug Faunt N6TQS +1-510-655-8604]

   Date: Tue, 02 Sep 2008 09:34:31 -0700
   From: Lyle Johnson <kk7p at wavecable.com>

   There are three distinct audio channels in the K3, and they all have 
   slightly different characteristics.

   LINE OUT

   This has its own digital-to-analog converter (DAC) and is transformer 
   isolated.

   PHONES

   This shares a DAC with the speaker channel, but has its own amplifier 
   and isolating resistors to help reduce the impact of plugging in two 
   sets of headphones.

   SPEAKER

   This shares a DAC with the headphones, but has its own stereo amplifier.

   We are aware of the discussions regarding harmonic distortion and IMD. 
   While it is easy to just say, "The radio meets specs!" (it does :-) we 
   are looking at ways to improve the performance of the entire audio system.

And you have lots of help, too!!!  I'm sure sorting it all out is
sometimes difficult, but....

73, doug