[Elecraft] NB IF NAR/CODEC

[Don Wilhelm]

Mike,

If your noise source has changed, that is adequate reason the NB does 
not work as it used to.  With NB and NR there is no one solution that 
fits all noise sources.  You will just have to experiment a bit to see 
which settings are most effective.

73,
Don W3FPR

On 10/8/2018 1:46 PM, Mike Greenway wrote:
> I have 2 K3 and a K3S and for some time I have noticed all 3 doing something that seems incorrect.  All the radios are all up to correct Rev levels.  For years with my normal local noise, I always ran the NB at IF Nar 1-4 most all the time with good success.  In recent months, maybe more, on Nar only when I get up to NAR 1-4 to 1-7 more noise than what I am trying to remove appears ie with no NB and S4 with some minor local line noise, at NB Nar 1-7 the noise is S6 or more.  I don’t see that on any Med and Wide.  I don’t see any difference in what band I am on but on the higher bands I have PRE 1 on with AGC Fast or Slow.  Any input from others that might have seen this is appreciated.  I know in past years this did not occur and I have been lax in asking the question.
> 
> I actually checked at another QTH with only S2 on the meter and got the same results.