Matthew Diessner has been in the RF Industry since 1978. Started with Boonton Electronics as a repair and calibration technician. He was inside sales at General Electric Quick Rents before joining Tektronix. Matt also worked at Anritsu and Transistor Devices before returning to Boonton Electronics and Noisecom. His current position is Director of Business Development, Wireless Telecom Group. Matt attended R.E.T.S in Nutley New Jersey and then Morris County College where he obtained his AE in Electronic Technology in RF. He continued his education in Business at William Paterson University.
While we get the scope’s bandwidth from the vendor, as soon as we add a cable, probe, or amplifier to the scope, we decrease the system bandwidth. The new system bandwidth is as important to know as the scope’s bandwidth, but it is generally difficult to measure except in a calibration lab. We offer a simple method of evaluating the transfer function and system bandwidth of any probing system using a wide band noise source. This method not only gives us information about the probes and interconnects, but it also tells us how the scope responds to the measurement system, information which cannot be measured by a VNA alone.