[Elecraft] K2 SSBCAPKT: 2.4kHz or 2.6kHz SSB bandwidth?

[Alan Bloom]

I think it depends on the voice spectrum.  With a typical male voice
there is a lot of power at low frequencies which is not needed for
comprehension.

If those low frequencies are filtered out, either by an audio high-pass
filter (series capacitor) or by the crystal filter (the edge nearest the
carrier) then the extra transmitted bandwidth should make very little
difference in "talk power".

Alan N1AL


On Fri, 2009-10-16 at 14:38 -0700, Ron D'Eau Claire wrote:
> But Don, I is a < 10% increase in RF power produced by the narrower 2.4 kHz
> bandwidth even audible? 
> 
> I can see dropping to 2 or 2.2 kHz to see enough improvement that it might
> be audible under weak signal conditions, but the tiny difference between 2.4
> and 2.6 seems unlikely to be noticeable.
> 
> Ron AC7AC
> 
> 
> -----Original Message-----
> 
> John,
> 
> The 2.6 kHz bandwidth does indeed sound better, but if you are going to 
> keep that K2 as a QRP rig, then I suggest the 2.4 kHz width because 
> there will be more power in the passband.
> 
> 73,
> Don W3FPR