[Elecraft] Analogue Spectrum Analyser kits

Wed Apr 16 11:38:03 2003

Rob, even a modest soundcard running Spectrogram or any of other such
programs will probably do a better job as an audio spectrum analyzer than an
analog hardware unit.

I have done extensive spectral studies of receiver and filter responses with
such a system, with remarkably good and useful results. Even such PSK31
programs as DigiPan and MixW function quite well to illustrate the spectral
content of a complex signal.

73/72, George
Amateur Radio W5YR -  the Yellow Rose of Texas
Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
"In the 57th year and it just keeps getting better!"
<mailto:[email protected]>

----- Original Message -----
From: "Robert Cochrane" <[email protected]>
To: <[email protected]>
Sent: Wednesday, April 16, 2003 3:28 AM
Subject: [Elecraft] Analogue Spectrum Analyser kits

> I have just bought a good used 2ch 'scope and would like to build an
> analogue spectrum analyser suitable for a 20Mhz 'scope with external
> x-plate input.
>
> I have some suitable designs for an HF analyser with adjustable centre and
> width, but would prefer to have a set of pc boards or a kit.
>
> JAB electronic components in the UK do a neat kit, but are out of boards
> due to a supplier problem and there is a three months wait.
>
> Does anyone in the USA produce boards or a kit, or are the digital FFT
> analysers taking over?
>
> Rob
> M0RAC
>
> Robert A Cochrane
> 7 Lawn Terrace
> Blackheath
> London SE3 9LJ
> UK
>
> Tel:   (44) 020 8297 1978
> Mob: (44) 07764 197 701
> Fax:  (44) 020 8297 8126
>
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