Posted by
Guy, K2AV on
Dec 19, 2009; 5:02pm
URL: http://elecraft.85.s1.nabble.com/K3-Receiver-Noise-Level-Evaluation-and-Adjustment-tp4187070p4191970.html
Short version: put a way to reset to default AGC in the K3 itself. Do this ASAP.
Long version:
On Fri, Dec 18, 2009 at 10:11 AM, Wayne Burdick <
[hidden email]> wrote:
> If you feel that the noise level of your K3's receiver is excessive,
> please try the following:
....snip....
> 3. Use the factory defaults for AGC. These were carefully chosen to
> adjust gain in the presence of significant band noise.
....snip....
While the advice is official, there is not much point in posting "set
to factory defaults" unless you include what those numbers are in your
text.
Otherwise the reader has to do the research (Google, site search,
thumb manual looking for numbers...) to determine what the factory
defaults are.
Digging around on the web site, etc, will defeat a lot of readers. Not
because your site is trashy (it's not), or the manual is bad (it's
not), or K3 users are stupid (they're not), but because in human
evolution web-searching was never the reason why one did or didn't
live long enough to pass on one's genes to one's children. That and
such things as RTFM were not Darwinian criteria. More than that...
Human behavior studies in information assimilation on all kinds of us
regular folks show over and over that on average humans don't do well
at drilling down in information, become quickly bored, tired,
irritated, frustrated, confused just to name a few. And while they may
doggedly stay with such tasks to keep a job to feed and house the
family, teeth-grinding information drilling to find the default
numbers does not cut it in our pastime activities. Moreover, even
relating to work, studies with competent well-thought-of clerical
personnel showed that errors, misreads, no-finds, and nasty remarks
increased dramatically with the number of steps to fetch, or with any
uncertainty as to the source, appearance or presentation of the needed
information.
Given the amount of attention, confusion and complaints related to
noise and AGC, wouldn't it make sense to identify your default
CONFIG:AGCxxx setting numbers with a "dEF" to the left of the number
when VFO A rolls over it, so that when the folks from Mount Aptos say
to use the default AGC, that can be easily set and/or confirmed and/or
returned to without needing to dig up the numbers somewhere?
73, Guy.
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