K3 RF gain "kicks in" rather than smooth increase

[Stan AE7UT]

When turning the RF gain from minimum to about 9 o'clock there is a jump where it
seems to turn on rather than a smooth transition.  It works as expected and I didn't
think anything of it really until I got my sub-receiver placed.  The sub-receiver RF gain
acts like I have experienced on other rigs (a smooth increase in gain).
This maybe totally normal.  Just wondering if it's "normal".

I often use a rather high AF gain and use the RF gain to set the volume.  On other rigs
this seems to be the best for noise abatement.  The K3 does not seem to resond to
this as well as prior rigs of mine - specifically the Orion II.  Not that I would ever, ever,
ever, ever, ever, ever, ever want to go back.  I love my K3.  Far superior in my mind
to any rig I have used.

73
Stan AE7UT

[Don Wilhelm-4]

Stan,

I don't have a direct answer, but rather a comment.  The operation of
the RF Gain control is dependent on the settings of the AGC parameters,
particularly the Threshold and the Slope.  You might want to try varying
those a bit to see if you find a difference.

73,
Don W3FPR

On 2/13/2013 4:22 PM, Stan AE7UT wrote:

> When turning the RF gain from minimum to about 9 o'clock there is a jump
> where it
> seems to turn on rather than a smooth transition.  It works as expected and
> I didn't
> think anything of it really until I got my sub-receiver placed.  The
> sub-receiver RF gain
> acts like I have experienced on other rigs (a smooth increase in gain).
> This maybe totally normal.  Just wondering if it's "normal".
>
> I often use a rather high AF gain and use the RF gain to set the volume.  On
> other rigs
> this seems to be the best for noise abatement.  The K3 does not seem to
> resond to
> this as well as prior rigs of mine - specifically the Orion II.  Not that I
> would ever, ever,
> ever, ever, ever, ever, ever want to go back.  I love my K3.  Far superior
> in my mind
> to any rig I have used.
>
>

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Stan,

I'd suggest that you (re)run the "Calibrate RF GAIN" procedure in the K3
Utility. That resolved the issue for me.

Dale

On 2/13/2013 4:22 PM, Stan AE7UT wrote:

> When turning the RF gain from minimum to about 9 o'clock there is a jump
> where it
> seems to turn on rather than a smooth transition.  It works as expected and
> I didn't
> think anything of it really until I got my sub-receiver placed.  The
> sub-receiver RF gain
> acts like I have experienced on other rigs (a smooth increase in gain).
> This maybe totally normal.  Just wondering if it's "normal".
>
> I often use a rather high AF gain and use the RF gain to set the volume.  On
> other rigs
> this seems to be the best for noise abatement.  The K3 does not seem to
> resond to
> this as well as prior rigs of mine - specifically the Orion II.  Not that I
> would ever, ever,
> ever, ever, ever, ever, ever want to go back.  I love my K3.  Far superior
> in my mind
> to any rig I have used.
>
> 73
> Stan AE7UT
>
>
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/K3-RF-gain-kicks-in-rather-than-smooth-increase-tp7569898.html
> Sent from the Elecraft mailing list archive at Nabble.com.
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[Stan AE7UT]

Thanks for the replies.
Yes Don I tried varying the AGC parameters with no effect.
Dale I'll rerun the RF gain calibration.  Thanks for the help.
I'll let you know!

73
Stan AE7UT