[Elecraft] [K3] Noise Reduction Recording

[David Cutter]

Here's another system:

http://radio.bhinstrumentation.co.uk/html/sound_file_demonstration.html

David
G3UNA


>
> What you really need is a method of identifying the actual ssb speech 
> waveform, extracting the noise
> from it leaving the signal in the clear. There is a company in Germany 
> that produces an outboard unit
> that I find very effective without the degradation in the audio. Audio 
> demo here
> http://www.home.vrweb.de/michels/sound_demo.htm
>
> I use a pair of their DX-21 kit modules and feed the left/right stereo 
> output into each one so I get
> independent NR control of each channel.
> There is an Eham review here  http://www.eham.net/reviews/review/43017
>
> By using a pair I also retain the audio fx and binaural I-Q.
> You would need to contact the company about the availability of the DX21 
> modules as I see they are no
> longer shown on the site.
>
> I find the combination of a receiving antenna (I use a rotatable 1530 
> loop) and the outboard noise
> reduction very effective on 80/160 grey line SSB weak signal work for 
> instance.
>
> Anyway, something to think about.
>
> 73 to all
> Trevor  G0KTN
>
>
>