[Elecraft] K3 NR

[Lyle Johnson]

> Is it still the case that the interpretation of the NR parameters is
> as described in the K3 manual (D4)?

Not with the latest beta release.

> The manual states:
> 
> "The second
> part (-y) controls how much of the signal is routed
> through noise reduction, from 1 (50%) to 4 (100%)"
> 
> If so I'm confused by the identities:
> 
>> The 3.27 NR F3-1 is *identical* to 3.25 NR F1-4.
>> The 3.27 NR F3-2 is *identical* to 3.25 NR F2-4.
>> The 3.27 NR F3-3 is *identical* to 3.25 NR F3-4.
>> The 3.27 NR F3-4 is *identical* to 3.25 NR F4-4.
> 
> where F-1, -2 etc. are asserted to be identical to Fx-4.
> 
> Has the scheme changed?

Yes.  The mixing action of unprocessed and processed audio was resulting 
in the scalloping effect I mentioned.

The best thing to do is to just listen as you adjust the slowly adjust 
the NR parameters.  The type of signal, type of noise, strength, AGC 
settings and so on are likely to have some effect.  This is why there 
isn't just a "one size fits all" recommended setting.

73,

Lyle KK7P