User Manual

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7.7.2 Trigger Input Level:
TTL
Input Impedance:
10kΩ
7.8 Frequency Counter
7.8.1 Frequency Range:
10mHz to 350MHz
Resolution:
6 digits/s
7.8.2 Sensitivity:
20mVrms to 5Vrms 10mHz to 100MHz
40mVrms to 5Vrms 100MHz to 200MHz
50mVrms to 5Vrms 200MHz to 350MHz
7.8.3 Measurement of Period and Pulse-width:
100ns to 20s
7.8.4 Duty Cycle Measurement:
1％ to 99％
7.8.5 Gate Time:
1ms~500s
7.8.6 Couple Mode:
AC, DC