You measure a 1 ns risetime digital signal. What frequency wil you use to check if the pF's in the probe/scope/cable combination are going to cause probe loading? Enter the answer in MHz without the unit.

You measure a 5V digital signal with 100 ms (10%-90%) rise time.The pF capacitance in the probe/cable/scope combination influences the measuarement dramatically. True or False

You build a home made probe to counter probe loading. You use a 5K series resistor. What is the approximate scale factor (probe factor) you set on the oscilloscope?

You have made a home made probe to measure digital signals on an oscilloscope. The probe reduces probe loading. Which of the following is/are true. There can be more than one correct statement.Question 3Select one or more:1.You will not get reflections as long as you just use a 50 ohm co-ax cable.2.You use a coax as cable. This goes directly to the scope channel input through a 50 ohm termination.3.The probe factor (scaling) will change if you use a 50 ohm termination on the scope input.4.The coax cable must have a characteristic impedance of 50 ohm if a 50 ohm termination is used at the scope.5.You use a coax as cable. This goes directly to the scope channel input.

A crocodile clip probe is used to measure a digital signal. The input to the scope is a 1 Meg resistance in parallel with 20 pF. Furthermore, the probe is 0.8 m long and for the co-ax C = 100pF/m. A 10 ns rise time (10% - 90%) pulse is measured. The source impedance for the digital signal output being measured is 60 ohms. At the high frequencies (around the signal bandwidth), what is the typical error made (in relationship to the signal) in the measurements at these high end frequencies? Enter the value of the error in percentage without the %.

Which of the following is most correct. There may be more than one correct answer.Question 4Select one or more:1.A scope probe set on 1X will not cause probe loading.2.A probe set on 10X must be compensted to work correctly.3.A scope probe set on 10X will not cause probe loading.4.A probe set on 1X must be compensted to work correctly.