[Elecraft] K-3 Noise Reduction

[Grant Youngman]

20 dB for both per spec. I suspect they're both LMS, but haven't tried the Lingua. I do like the Hear It, even if it does have that watery LMS sound.   But it isn't the ultimate solution either. And as you say, it's worthless on CW.  Do I believe the other radio's NB are so much better? Nah. Not in a heartbeat. 

It's hard to forget the vituperative NR discussions on the TT list back when I had Orions I/II. Some loved it on those radios, some thought it was less than a pile of dung.

None of these things work miracles, which is what some expect. Nothing matters but (S+N)/N with and without, and I have yet to see anything definitive or believable except personal opine on how "nice" it sounds. Doesn't matter!  Can you detect a weak signal in the presence of noise better?  Is S/N really better? Measured?  Anecdotal? Imagined?  

A vendor can make it sound great and no contribute much. 

Sent from my iPhone

On May 17, 2011, at 4:36 PM, Adi Andrei <e.adi.andrei at gmail.com> wrote:

> For NR I always use BHI (Gap Hear it) or  Lingua (http://www.ssbusa.com/LINGUA.html) products. They seem to be very similar technology, with the audio implemented a bit differently.
> If you use headphones for very weak signals in large amounts of noise, I recommend the 10W BHI speaker, it has a newer, quieter audio circuit, or the Lingua. It is impressive the amount of noise these devices eliminate