[Elecraft] spectrogram

n3drk n3drk at triad.rr.com
Sun Jan 22 12:55:32 EST 2006


Listed below is a link for a Windows based Oscilloscope. This can be used 
for transmitting but I do not know about receiving. What do you guys think? 
By  the way thanks to all for responding to my original post.

http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=3428


73s
john-n3drk


----- Original Message ----- 
From: <ab4cz at comcast.net>
To: "n3drk" <n3drk at triad.rr.com>; "elecraft" <elecraft at mailman.qth.net>
Sent: Sunday, January 22, 2006 9:31 AM
Subject: Re: [Elecraft] spectrogram


>
> John,
>
> Sjpectrogram is a FFT (Fast Fourier Transform) spectrum analyzer program. 
> It's display is amplitude versus frequency.  What you need to display the 
> "Christmas Tree" and CW waveforms is an  oscilloscope display.  In the 
> case of the Christmas Tree, the oscilloscope is set up to display RF drive 
> or audio on the horizontal axis and RF output on the vertical axis (the 
> oscilloscope is in X-Y mode, with x=drive, Y=RF out).  For the cw envelope 
> you use the oscilloscope in the conventional mode where the horizontal 
> axis is time and the vertical axis is voltage.  So the short answer to 
> your question is "NO".
>
> jim, AB4CZ
>
>>can Spectrogram also show the
>>Christmas Tree effect for SSB? How about the rise and fall of the CW note?
>>What about in receive mode. Can it also show these for the received 
>>station?
> 



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