Posted by
Don Wilhelm-3 on
Mar 02, 2007; 2:27am
URL: http://elecraft.85.s1.nabble.com/Frequency-counters-for-Alignment-tp444308p444317.html
Ken,
If you want an even more challenging and exotic use of Spectrogram, consider
using a diode ring mixer and a signal generator to convert an RF signal down
to baseband (audio), amplify it a bit with an op amp and you can feed the
output to the soundcard to be used (with Spectrogram) as a narrow band
spectrum analyzer.
This is a realistic way to examine the close-in frequency spectrum, such as
that of an SSB transmitter output. Feed the K2 with an Elecraft 2T-gen to
examine the spectrum of the transmitter.
The concept comes from The Measurements chapter of Experimental Methods in
RF Design, so I calim no originality for the design - only the application
with the 2T-gen. No, I have not yet written this up for my website.
73,
Don W3FPR
> -----Original Message-----
> From: Ken Kopp [mailto:
[hidden email]]
> Sent: Thursday, March 01, 2007 8:58 PM
> To:
[hidden email]; Ron D'Eau Claire; 'Elecraft Discussion List'
> Subject: Re: [Elecraft] Frequency counters for Alignment
>
>
> Great suggestion, Don! I wouldn't have thought
> about using the Spectrogram's markers to match
> the tones from WWV.
>
> Thanks!
>
> 73! Ken Kopp - K0PP
>
[hidden email]
> or
>
[hidden email]
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