K3 FW3.51 & RTTY

[alsopb]

Was switching between various digital modes and shot myself in the foot.

Turns out that AFX was set on by mistake and it destroyed the dual peak
passband function.  I was unable to decode RTTY with an external TNC
connected to line out.  Spectrogram showed why.  Turning AFX off fixed it.

Note: I do have left and right channels mixed here but was operating
with the main RX only.  So this shouldn't matter.

I was under the impression that all special signal processing was turned
off when going to digital modes.  It appears AFX should be one of them.

73 de Brian/K3KO

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Version: 8.5.423 / Virus Database: 270.14.40/2471 - Release Date: 10/31/09 07:53:00

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[Greg - AB7R]

Hi Brian.  I wanted to test this so I have been working some rtty this
afternoon.  I don't see any difference in the dual peak traces with AFX
either off or on.  I tried with AFX set to BIN and also with some of the
delay settings.  In all cases the traces looked the same and did not change
decoding.

Do you maybe have Line Out set to = phones and maybe that is doing
something?

73
Greg
AB7R

----- Original Message -----
From: "Brian Alsop" <[hidden email]>
To: <[hidden email]>
Sent: Saturday, October 31, 2009 7:42 AM
Subject: [Elecraft] K3 FW3.51 & RTTY

> Was switching between various digital modes and shot myself in the foot.
>
> Turns out that AFX was set on by mistake and it destroyed the dual peak
> passband function.  I was unable to decode RTTY with an external TNC
> connected to line out.  Spectrogram showed why.  Turning AFX off fixed it.
>
> Note: I do have left and right channels mixed here but was operating
> with the main RX only.  So this shouldn't matter.
>
> I was under the impression that all special signal processing was turned
> off when going to digital modes.  It appears AFX should be one of them.
>
> 73 de Brian/K3KO

--------------------------------------------------------------------------------


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> Elecraft mailing list
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> Post: mailto:[hidden email]
>
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> Please help support this email list: http://www.qsl.net/donate.html


--------------------------------------------------------------------------------



No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.423 / Virus Database: 270.14.40/2471 - Release Date: 10/31/09
07:53:00

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

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