>I've already noted that I should provide advice regarding per-mode AGC
>slow/fast and other AGC settings. What other areas would you like to
>see additional guidance in?
>
>73,
>Wayne
>N6KR
Wayne,
I've had my K3 for nearly a year, and have only been on HF for about 1 year.
My background is software engineering, not electronics or RF. I have no
idea, really, why or when I should use NR 5-1 vs NR 8-4 (I just let my ears
guide me, but I don't understand when one algorithm is more appropriate than
another). When I try to clean up a signal, I generally go through the
following steps:
1. Engage NB (sometimes this takes the edge off the crackle I tend to hear
on 40)
2. If it's really hard to hear the signal, I'll active NR, starting at 5-1
(I only do SSB right now), and progressively move to 8-4, trying to see if
any of those settings improve my ability to hear the other op.
3. If I hear someone tuning up, I'll engage NOTCH.
4. Often I'll take out the low end rumble with LO CUT (HI CUT rarely seems
to improve anything for me). If there's a lot of QRM (during contests,
etc), I'll shrink the WIDTH as much
as I can and still be able to communicate.
But, each time it's a guessing game as to what will work. Maybe that's just
how life is when it comes to HF. But, if the experts on here were to
compile a list of "use case scenarios" -- this is a term all software people
are familiar with, it might be helpful to point the masses in the right
direction of how to clean up their reception and improve their transmission
(mic settings, etc).
So I envision a supplemental manual ("advanced operating tips" or something)
that is a compendium of challenges users frequently encounter and how to
adjust the K3 to solve those challenges-- for example:
SCENARIO: You want to work a weaker signal but there's someone stepping on
it from 2 KHz up
(describe recommended controls to adjust to reduce or eliminate the QRM)
SCENARIO: My noise level is S7 and the signal I want to work is just barely
above this
(describe recommended controls to adjust to increase the ability to lift
the signal out of the noise)
SCENARIO: People tell me my audio has too much treble
(describe recommended mic adjustments)
Examining the history of this reflector should help to identify which
scenarios would cover 80% of the user base's most common usage scenarios.
73 de Jeff, W6UX
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