[Elecraft] K2 and digital modes

WILLIS COOKE wrcooke at flash.net
Fri Mar 21 09:37:39 EST 2008


--- "Simon Brown (HB9DRV)" <simon at hb9drv.ch> wrote:

> Julian suggests running a bar of ALC - I very
> strongly disagree. Never, ever 
> run any ALC with PSK as it degrades the quality of
> the signal and makes 
> decoding more difficult.
> 
> With digital modes *always* aim for a 100% linear
> signal. It's not the power 
> but the quality / purity that matters. What may look
> good on the other 
> station's waterfall is not always the best for
> decoding.
> 
> It's not just what you transmit but what you don't
> transmit that matters.
> 
> Simon Brown, HB9DRV
> 
Simon, does this apply to RTTY as well?  I have had
good results by keeping the power down with PSK-31,
but not such good results with RTTY.  Most of my RTTY
is in DX pileups and my results seem better if I run
the transceiver a bit harder and drive my amp to 300
watts or so, but my experience is very limited.  I am
using you DM 780 with an ACER Aspire 5610Z computer
running Vista.

Thanks for a very nice suite of programs.  



Willis 'Cookie' Cooke 
K5EWJ


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