Karl, In reguards to to reply, first thanks, then How do you define "Counts of noise" ? I have an O'scope But how do I measure this random or psuedo-random stuff without a spectrum anylizer ? My AtoD is quiet as a mouse. I'm using an ADC0809 eight channel AtoD and am using but four of these channels. I'm using the printer LPT1 interface. Write if you have any suggestions. Casey ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj. __________________________________________________________ Public Seismic Network Mailing List (PSN-L)
Larry Cochrane <cochrane@..............>