[Elecraft] K3 new V3.25 NR not so good for CW week signal

[drewko]

I haven't played with the new NR enough yet but so far I haven't heard
any weak CW signals that were lost due to turning on the NR. As long
as the signal is still there and the S/N is better I don't mind if the
overall volume seems to decrease a little when NR is turned on. The
new NR sounds better to me than the old version, but I mostly use a
pretty wide filter setting for CW so haven't really tried it with a
very narrow filter and weak signal.

One small modification I would like is that when AGC is off and NR is
turned on, instead of flashing "N/A" on the display, the NR should
simply activate the AGC to the last used setting (Fast or Slow). This
is a minor irritation to those of us who frequently jump between
AGC-Off and AGC-On: you push NR; it flashes "N/A"; then you have to
push AGC and then NR again. NR should just turn on AGC as necessary.
(I don't really care whether or not AGC then remains on when NR is
subsequently turned off.)

73,
Drew
AF2Z


 
On Sat, 15 Aug 2009 13:21:19 -0700, Ron AC7AC  wrote:

>Not just "Q-multipliers" but go back another generation to the regenerative
>receiver (or, more properly put, "regenerative detector"). Same thing. As
>you narrow the selectivity by adjusting the regeneration closer to the
>"critical point", the gain also increases, just as with a "Q-multiplier". 
>
>I've gotten used to turning up the gain as I narrowed the selectivity on my
>post-regenerative Homebrew receivers so I didn't miss it on the K3. 
>
>Ron AC7AC 
>