[Elecraft] K3 noise reduction vs. Clear Speech speaker

Richard S. Lindzen rlindzen at MIT.EDU
Sat Aug 23 09:59:17 EDT 2008


When I got my K3 in May, I loved the NR.  Even if it didn't help with 
weak signals on SSB, it certainly made listening more pleasant.  With 
recent firmware, however, I have to agree that NR is a bummer.  It 
always makes signals less pleasant to listen to on SSB regardless of 
setting.  Any way to restore the old performance?

Dick
KA1SA
#911

 >
> >
>I was the one asking for a comparison, and I received two replies,
>each one saying that the external speaker (two different brands) they
>were using was an improvement over the K3's noise reduction.  I
>ordered one, and sure enough, it's better.  It seems that any NR
>system is far from perfect however.  But now my external NR gives me
>some relief from the constant grind I have.  I had quit using the K3's
>NR not only because it wasn't helping on SSB, but also because if I
>had been using it, the AF gain had to be set so high that the next
>time I powered up the radio I was blasted out of my chair because it
>powers up with NR off, even if it was on before.  So I'll use the
>outboard NR until the K3's NR becomes satisfactory for me.  If it ever
>does, I'll offer my NR speaker to some unfortunate OM with a lesser
>radio.
>
>Dave  W5DHM
>Goshen, Indiana
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