[Fwd: One Man's Attempt To Save Morse Code]

[Eric Swartz - WA6HHQ]

Check out the K1 in the video too!
73, Eric  WA6HHQ


-------- Original Message --------
Subject: [QRP] One Man's Attempt To Save Morse Code
Date: Tue, 09 Oct 2007 08:16:30 -0400
From: Bry Carling <[hidden email]>


This made the front page of the Wall Street Journal!

One Man's Attempt To Save Morse Code

A great, in-depth article explaining the validity and
the continuing importance CW!

You can view the article on line today at:
http://online.wsj.com/public/article/SB119161604206850468.html

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[Ross Stenberg]

For the intent of maximizing displayed bandwidth, what is the maximum
allowed bandwidth on the IF output from the K3? Would the roofing filter
need to be bypassed? I would like to use an SDR-IQ for display purposes and
secondary demodulation.

        73 Ross K9COX

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[KK7P]

> ... what is the maximum
> allowed bandwidth on the IF output from the K3? Would the roofing filter
> need to be bypassed? I would like to use an SDR-IQ for display purposes and
> secondary demodulation.

The IF tap is ahead of the roofing filter, so it is only limited by the
RF bandpass and low pass filters.  I have successfully used an SDR-14
much as you describe your planned use of the SDR-IQ.

73,

Lyle KK7P

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[Eric Swartz - WA6HHQ]

The K3 IF output is derived before the roofing IF filters and its
bandwidth is only limited by the width of the front end bandpass LC
filters, which are typically several hundred kHz wider than the ham band
you are operating on.

73, Eric   WA6HHQ
----

Ross Stenberg wrote:
> For the intent of maximizing displayed bandwidth, what is the maximum
> allowed bandwidth on the IF output from the K3? Would the roofing filter
> need to be bypassed? I would like to use an SDR-IQ for display purposes and
> secondary demodulation.
>
> 73 Ross K9COX
>
>  
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