Spectrogram Alternate for Linux users

[Jim Sheldon]

Any Linux user that wants a good program for aligning the K2's filtrs should
go to www.baudline.com .. Baudline is a free Linux application that is every
bit as good as Spectrogram, and may even do more.  It certainly has the
capability to display the same information that Spectrogram does for
aligning the filters in the K2.  I ran it in parallel with spectrogram using
2 computers, one running Baudline on Fedora Core2 Linux, and the other of
course running Spectrogram version 11 on Windows 2000 Pro.  They both showed
the bandwidth properly and with sufficient clarity to be extremely useful
filter alignment programs.  Baudline seemed to have a bit better performance
due to faster FFT's with Linux's smaller CPU overhead.

Jim, W0EB
K2# 4338

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[Bob Nielsen]

On Sun, Oct 17, 2004 at 07:35:50AM -0500, Jim Sheldon wrote:

> Any Linux user that wants a good program for aligning the K2's filtrs should
> go to www.baudline.com .. Baudline is a free Linux application that is every
> bit as good as Spectrogram, and may even do more.  It certainly has the
> capability to display the same information that Spectrogram does for
> aligning the filters in the K2.  I ran it in parallel with spectrogram using
> 2 computers, one running Baudline on Fedora Core2 Linux, and the other of
> course running Spectrogram version 11 on Windows 2000 Pro.  They both showed
> the bandwidth properly and with sufficient clarity to be extremely useful
> filter alignment programs.  Baudline seemed to have a bit better performance
> due to faster FFT's with Linux's smaller CPU overhead.
>
> Jim, W0EB
> K2# 4338

You can also use one of the digital mode programs which has a spectrum
display, such as gmfsk.  I found this was also quite useful for
zero-beating WWV when doing the frequency calibration of my K2 by tuning
until the tone frequency lined up with the corresponding mark on the
frequency display.

73, Bob N7XY


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