[Lowfer] Sampling Rate and Frequency Calibration

[w1tag at charter.net]

In response to the recurring question about how to calibrate sound card 
sampling rates and check receiver audio output frequency "on the cheap," 
I have put up an article on a simple calibrator circuit that provides 1 
kHz and 100 kHz outputs. See:
http://www.w1tag.com/Calibrator/Freq_Cal.htm

As the article notes, I can provide small quantities of  programmed 
divider chips. Anyone interested should contact me directly, not through 
the mail list.

John, W1TAG