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P3SVGA Question

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Tobyp

P3SVGA Question

Got the P3SVGA yesterday and have it running ok.

Looks Great!

I am using a Sony 15 inch monitor and notice on cw that the green marker basically diasppears whenever the BW on the K3 is turned lower than 20 hz. I have tried all the different resolutions and it makes no difference.

The green marker on the P3 itself stays the same at any passband width setting.

Has anyone else observed this ?

Toby W4CAK
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Rick Prather-2

Re: P3SVGA Question

Toby,

I assume you mean 200 Hz?

At any rate, I can turn mine down to the minimum (50 Hz) and still see the green line. It's fairly dim at that width but still visible.

Perhaps you can adjust the color and or contrast on your monitor to bring it out.

Rick
K6LE

On 3/25/2012, at 5:31 , "Toby Pennington" <[hidden email]> wrote:

> Got the P3SVGA yesterday and have it running ok.
>
> Looks Great!
>
> I am using a Sony 15 inch monitor and notice on cw that the green marker basically diasppears whenever the BW on the K3 is turned lower than 20 hz. I have tried all the different resolutions and it makes no difference.
>
> The green marker on the P3 itself stays the same at any passband width setting.
>
> Has anyone else observed this ?
>
> Toby W4CAK

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W6NEK

Re: P3SVGA Question

In reply to this post by Tobyp

Hi Toby,
What you describe is not what I am seeing on my P3/P3SVGA scope.
On the P3 screen with P3 Span set to 5 KHz the "Green" bandwidth display
(Bar or U ) varies in width proportional to the K3 bandwidth setting. It is
still
visible with bandwidth set to a minimum of 50 Hz. The exact same Bar
Display is
duplicated on the P3SVGA display. What you are experiencing does not sound
normal. Perhaps a P3 guru can shed some light on what you are experiencing.

Frank - W6NEK

----- Original Message -----

From: "Toby Pennington" <[hidden email]>
To: <[hidden email]>
Sent: Sunday, March 25, 2012 5:31 AM
Subject: [Elecraft] P3SVGA Question

> Got the P3SVGA yesterday and have it running ok.
>
> Looks Great!
>
> I am using a Sony 15 inch monitor and notice on cw that the green marker
> basically diasppears whenever the BW on the K3 is turned lower than 20 hz.
> I have tried all the different resolutions and it makes no difference.
>
> The green marker on the P3 itself stays the same at any passband width
> setting.
>
> Has anyone else observed this ?
>
> Toby W4CAK
> ______________________________________________________________
> 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
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2012.0.1913 / Virus Database: 2114/4893 - Release Date: 03/25/12
>

John_N1JM

Re: P3SVGA Question

In reply to this post by Tobyp

I think I know the answer, but I'll ask anyway. Can you set the external monitor to a different span than the P3. It would be a nice to have feature. I run my SDR-IQ usually at 192 kHz and P3 at a narrower span.

John N1JM

Paul Saffren N6HZ

Re: P3SVGA Question

Hi John,

The P3SVGA board uses the P3's front end (down converter and a/d) making it difficult to operate in a different span than the P3.

73,

Paul