Elecraft › [K3]

{Spam?} P3 display "expansion" when tuning K3

Classic

List

Threaded

2 messages Options

Chris Meagher-3

{Spam?} P3 display "expansion" when tuning K3

Hi there,

When tuning the K3 the dynamic range of signals and noise on the P3 display
expands considerably when I turn either the main tuning knob or fast tune
via the CLR knob.
It settles back as soon as the knob is not moving.
(The scale grid doesn't change).

I find it rather disconcerting, as the "expansion" makes the original
spectrum pattern hard to recognise.
Of course you can just QSY without this effect
using the markers, but often I prefer to listen for anything in between as I
tune to a signal of interest.

Is this behaviour normal, or do I have a bug?

Also getting the problem of the bandpass marker appearing as USB when on
LSB.
Is this being fixed in the new beta?

Thanks for any info from the forum.

Chris VK2ACD

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

Eric Swartz - WA6HHQ

Re: {Spam?} P3 display "expansion" when tuning K3

Administrator

Do ypu have signal averaging turned on? If so, this is normal, since the average is recalculated on new data as you tune.

73,
Eric

www.elecraft.com
_..._

On Sep 21, 2010, at 7:35 PM, "Chris Meagher" <[hidden email]> wrote:

> Hi there,
>
> When tuning the K3 the dynamic range of signals and noise on the P3 display
> expands considerably when I turn either the main tuning knob or fast tune
> via the CLR knob.
> It settles back as soon as the knob is not moving.
> (The scale grid doesn't change).
>
> I find it rather disconcerting, as the "expansion" makes the original
> spectrum pattern hard to recognise.
> Of course you can just QSY without this effect
> using the markers, but often I prefer to listen for anything in between as I
> tune to a signal of interest.
>
> Is this behaviour normal, or do I have a bug?

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html