: Always calibrate your probes before use. Connect the probe to the BNC input and the built-in compensation pin (usually 1kHz square wave) and adjust the probe's trimmer capacitor until the waveform is perfectly square.
: To maintain accuracy, the DOS1102 supports a self-calibration routine. Disconnect all probes and select "Self-Calibration" from the utility menu; the process typically takes a few seconds. hanmatek dos1102 manual
: Includes a "Horizontal Scale" knob for the time base and a "Horizontal Position" knob to adjust trigger placement. : Always calibrate your probes before use