P3 Artifacts On The Waterfall Display

[Jack]

I have noticed that there are several white lines showing in the waterfall
display that do not move when I change frequency.  Some are fuzzy and some
are well defined narrow lines. All these lines are vertical and would appear
to be signals except that when I tune toward the signal they never change
their position on the display. Real signals  can be tuned into and the
waterfall shows their change to the center of the display.  It is really
noticeable on 10  20 and 50 but does not seem to be happening at all on 15
and 40. The rest of the bands have the problem to a lesser degree.

 

Any ideas?

 

Jack AE6GC

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[Paul Saffren N6HZ]

Hi Jack,

If you take a screen shot, do they show there?

73,

Paul

[Dave New, N8SBE]

Do you have any transverters or other possible spurious noise sources
hooked up?

I noticed that once I hooked up my Elecraft 2 M and 70 cm transverters
that noticeable spurious lines started showing up.  I haven't had time
to try to chase it down, yet.

73,

-- Dave, N8SBE

> -------- Original Message --------
> Subject: [Elecraft] P3 Artifacts On The Waterfall Display
> From: "Jack Regan" <[hidden email]>
> Date: Thu, March 15, 2012 5:52 pm
> To: <[hidden email]>
>
>
> I have noticed that there are several white lines showing in the waterfall
> display that do not move when I change frequency.  Some are fuzzy and some
> are well defined narrow lines. All these lines are vertical and would appear
> to be signals except that when I tune toward the signal they never change
> their position on the display. Real signals  can be tuned into and the
> waterfall shows their change to the center of the display.  It is really
> noticeable on 10  20 and 50 but does not seem to be happening at all on 15
> and 40. The rest of the bands have the problem to a lesser degree.
>
>  
>
> Any ideas?
>
>  
>
> Jack AE6GC
>
> ______________________________________________________________
> 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

______________________________________________________________
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Please help support this email list: http://www.qsl.net/donate.html