[Elecraft] K3 - noise reduction query

Hank P pfizenmayer at q.com
Fri Jul 4 18:23:47 EDT 2014


If you are talking about SSB on 80 and 40 - I was playing with trying to 
copy
the K2M on 40 M SSB last nite thru all the qrn - something to play with
is the SSB bandwidth and shifting the band- it makes a lot of difference
depending on how the guy has his audio tailored or how his voice is.

You also have a lot of AGC handles to play with - last night reducing
slope and playing with threshold made  significant differences at times.

I don't think there is any magic bullet  - conditions change and what works
one time or at one location  will be different another time.  What works for
one person . one location is very unlikely to be the solution at another
place.

I used TenTec Orions  for about 10 years - they had an incredible NB for
clean line noise spikes  BUT BUT if there were any strong signals anywhere
near (25 -50 khz or more) where you were listening  , the blanker
was useless -but absolutely  great on a quiet band.

I have never found a K3 line noise NB setting as good as the ORION  BUT BUT
I can get decent blanking in crowded band conditions -- I will take that any 
day over
unusable incredible . Years ago Collins used to drive their blanker with a 
separate
noise RX at about 40 mhz - often wished the Orion did that .

NR is a whole different story - I have already been thru  ten years of NR 
discussions,
in my case for me NR F1-1  is as good as anything I have used on either CW 
or SSB
but that is for me - a top flight contester friend across town with Orion 
and K3
to A/B and who lives in a 10 dB quieter location has entirely different 
opinions.
What works for him is entirely different for me.

NO MAGIC BULLET.

My two cents worth .

73 Hank K7HP



>I am hoping someone out there has come up with a magic bullet setting (or 
>even a workable setting) that can be shared. This has been a summer with 
>loads of lightning static.




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