[Elecraft] Frequency counters for Alignment

[Don Wilhelm]

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:k0pp at ixpres.com]
> Sent: Thursday, March 01, 2007 8:58 PM
> To: w3fpr at arrl.net; 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
> k0pp at arrl.net
> or
> k0pp at ixpres.com