[Elecraft] K3 Receiver mush

[Ted Bryant]

In playing with Bob N6TV's suggested settings, I've discovered that on CW,
neither the Shift->LO Cut nor the Width->HI Cut controls change functions
when tapped.  They appear fixed at SHIFT and WIDTH.  Tapping them merely
displays their current setting.  On SSB, they change and work as expected.
Is there a parameter setting somewhere that affects this?  I've looked
through the release notes but see nothing.

Using the latest firmware: 5.57

73, Ted W4NZ


-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Jim
Brown
Sent: Friday, February 24, 2017 1:54 PM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3 Receiver mush

On Thu,2/23/2017 6:32 PM, Bob Wilson, N6TV wrote:
> For reference, here are my preferred AGC and other settings for contesting
with a K3 and large CW pileups.

Bob's a great op, so I really appreciate seeing his settings. But they're
all run together in his email with no paragraphs or punctuation, so it's
very hard to read. I copied his settings into a word processor and added
paragraphs.

73, Jim K9YC

-   -   -  -   -   -   -

First, set *CONFIG:TECH MD ON* to un-hide some AGC settings.Set CONFIG:TECH
MD OFF when finished, to eliminate distracting values from accidentally
appearing in the SubRx display (PLL1, AFV, dBV, etc.)

*AF GAIN LO* -- Cuts audio hiss.May not work with all headphones.OK on Heil.

*AF LIM 20* -- Only takes effect when AGC is OFF (rarely used)

*AGC DCY Soft* -- Reduces AGC-induced IMD, recommended for pileups

*AGC HLD 0.05* -- Slow AGC hold time (50 ms).Reduces AGC-induced IMD,
recommended for pileups.Works with AGC-S only, no affect when using AGC-F.

*AGC PLS NOR* -- Loud static pulses do not pump AGC

*AGC SLP 010*-- A pretty "flat" AGC response curve.I may move this lower
since pileups of loud guys can blend together, but I like this setting
because it saves my ears.

*AGC THR 010* -- AGC kicks in at about S-8.Signals lower than THR behave as
they would with AGC OFF ( +1 dB of RF = +1 dB of audio)

*AGC -F 120* -- Factory default fast AGC decay rate (recovery time).Higher =
faster.Faster can be bad.

*AGC -S 20*-- Factory default slow AGC decay rate (recovery time).Higher =
faster.Faster can be bad.

*RF GAIN at 3 O'Clock or less* except when all signals and band noise are
very low (e.g. 10m)

*AF GAIN* never higher than 3 O'Clock

*AFX OFF*

*NR OFF*

*NB OFF*

*RIT OFF*

*XIT OFF*


FL1 to FL5 BW set to match labeled filter bandwidth exactly, not wider or
narrower.

Use *AGC-F* or *AGC-S* for CW, whatever works best for you.

Use *AGC-S* for SSB.

CW Pitch 500 (or to taste), IF shift centered (on CW)

500 Hz InRad 8-pole filter on CW

2.8 kHz 8-pole filter on SSB (1.8 8-pole when bands crowded, *must move IF
SHIFT lower for pleasing audio*)

Use *XFIL* button to toggle between filters and reset the IF shift, rather
than NOR (hold) button

*PREamp ON* for 15m and up, *PREamp OFF* for all other bands

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