ODP: scope question

[Don Tillman]

   Date: Thu, 29 Oct 1998 08:28:04 -0800
   From: Buck Buchanan <buchanan at qualcomm.com>

   If you're not carefull, you can alias the front end get goofy
   results.  Wanna look at the modulation envelope of a 20KHz signal
   AM'd by a 20Hz sine wave...  forget it..  The 20KHz is ganna alias
   at any time base slow enough to observe the 20Hz envelope.

(I can't find the manual right now but...) the Tektronix TD210 has
several data acquisition modes to minimize these very aliasing
effects.  

  -- Don