High Frequency Measurements Web Page
Douglas C. Smith

 Address:  P. O. Box 1457, Los Gatos, CA 95031
 TEL:      800-323-3956/408-356-4186
 FAX:      408-358-3799
 Mobile:   408-858-4528
 URL:      www.dsmith.org
 Email:    doug@dsmith.org

Unique and Useful Instruments
  The two products below incorporate design principles found on this website. The differential probe can make measurements that active differential probes are not capable of while the fast pulser allows quick testing of equipment for immunity to some of the impulsive EMI described on this site. Both are sold by Fischer Custom Communications and have been partly designed by myself.

1.5 GHz differential probe

1.5 GHz Differential probe
click here for data sheet
This probe has an input impedance above 1 GHz that can be 20 to 30 times or more greater than active differential probes when used with typical probe hardware. It also overcomes many other limitations of active differential probes at high frequencies as well. See the Technical Tidbit: August 2002, Probe Input Impedance Revisited - Active Probes

Pulsed Field ESD Simulator

Pulsed Field ESD Simulator
click here for data sheet

This instrument is a new fast pulser for simulating environmental impulse noise such as some of the unusual forms of ESD described on this site. It simulates noise sources not covered by current standards that have caused significant field problems in equipment.

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Questions or suggestions? Contact me at doug@dsmith.org
Copyright © 2003 Douglas C. Smith