Why not "Spectrum Lab" does the generation 0.1Hz upwards and waveform 
analysis [free]
http://freenet-homepage.de/dl4yhf/spectra1.html
Dale

----- Original Message ----- 
From: "Thomas Dick" 
To: 
Sent: Sunday, September 28, 2008 7:04 AM
Subject: calibration of lehmans/AS-1


>I have put two kits together(one turned out to be a square wave
> generator) and still don't have a sine wave generator that runs at 1 Hz.
> Anybody got a suggestion where I can get one?
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