I. Hardware Link Adjustment
Inspect all synchronization trigger lines. Replace any inconsistent lengths or those with oxidation or loose connections. Replace all lines with BNC coaxial cables of equal length and specifications to eliminate transmission delay differences.
Clean the oxide layer from all BNC terminals and re-insert and tighten them securely to avoid trigger signal transmission delay deviations caused by inconsistent contact resistance.
If using multiple T-connectors, replace them with high-precision BNC synchronization distributors (1 to N) to reduce signal distribution delay differences caused by link node losses.
II. Clock Reference Adjustment
Confirm that the master signal source clock is set to "internal," and lock all slave signal source clocks to "external," forcing them to run according to the master clock reference to eliminate drift deviations of independent clocks for each channel.
Strictly re-enforce the "master first, slave second" power-on sequence. Start the master signal source first, and after the master clock has been running stably for 3 minutes, start all slave signal sources sequentially to avoid clock reference synchronization misalignment.
III. Trigger Parameter Adjustment
Unify the trigger logic of all channels: Set the main channel trigger source to "Manual" and the trigger output to "Rising Edge," and set all slave channel trigger sources to "External" and the trigger input to "Rising Edge," ensuring a completely consistent trigger mode across all channels.
Reset the BURST delay parameter of all channels to 0 to eliminate any residual erroneous delay configurations and prevent synchronization misalignment caused by human parameter deviations.
IV. Precise Deviation Calibration
Simultaneously acquire the output waveforms of all channels using an oscilloscope. Using the rising edge of the main channel as a reference, fine-tune the delay parameters in the Burst menu for each channel until the rising edges of all slave channel waveforms are perfectly aligned with the main channel.
Repeatedly iterate through the synchronization deviations of all channels, confirming that the phase time difference of all channels is ≤0.01s, completing the calibration.
V. Stability Firmware Adjustment
Enter the Utility menu of all signal sources and set the startup option to "Last Value" to lock the adjusted synchronization parameters, preventing parameter loss and deviation recurrence after device restart.
The system was run continuously for 30 minutes, with synchronization deviation data collected every 5 minutes to confirm that there was no loss of synchronization due to drift over time, and to verify that the adjusted synchronization status was stable in the long term.
