Pulse length
An omni sonar term, in plain English.
How long each ping lasts. Longer pulses carry farther; shorter pulses separate targets that are close together. The CSH-10 uses 0.5 to 20 ms.
See it in action
The free lessons show where this shows up on a real screen: start with the learning path, try it yourself on the omni trainer, or look it up on real CSH-10 captures in the field guide. Owners and captains talk settings every day on the forum.