[Elecraft] K3 - ClearSpeech filters

[KENT TRIMBLE]

Bill . . .

Neither the K3 nor the KX3 need any external Noise Reduction hardwareat 
all, especially when their other receiving tools are brought to bear 
along with the NR circuit.

However, I do use the West Mountain ClearSpeech external audio filter 
(not to be confused with an I.F. filter) in conjunction with a Yaesu 
FT-897D.  This radio (along with many others) benefits greatly from the 
ClearSpeech due to the poor performance of the radio's DSP notch filter 
and slightly less poor NR.  The adjustable threshold of the West 
Mountain version is a distinct plus when compared with the original 
Am-Com ClearSpeech which was not adjustableat all.

White noise is the oneparameter that all Noise Reduction circuits 
accomplishbest, in my opinion, and the ClearSpeech does it very well.

73,

Kent K9ZTV


On 11/15/2012 8:01 AM, Bill Clarke wrote:
> Is anyone using the West Mountain ClearSpeech filter with their K3? How
> does it do with SSB white noise elimination (the constant background his
> of the receiver when not actually hearing a signal)?
>
> Thanks,
>
> Bill W2BLC
>
>