Which trigger initiates the gating of the sweep generator to produce measurement gates?

Which trigger initiates the gating of the sweep generator to produce measurement gates?

• A. The Sink Trigger
• B. The Master Trigger
• C. The Range Gate
• D. The Transmitter Trigger

Answer: (A)

The measurement gates are created by opening the sweep only when the system is ready to sample echoes at a specific range. The trigger that starts that gating is the sink trigger. It acts as the gate-control signal, telling the sweep generator when to produce the measurement gates in sync with the receive window after transmission. The master trigger sets overall timing, the range gate defines the sampling window, and the transmitter trigger starts the pulse—none of these initiate the sweep gating for measurements as directly as the sink trigger.

The measurement gates are created by opening the sweep only when the system is ready to sample echoes at a specific range. The trigger that starts that gating is the sink trigger. It acts as the gate-control signal, telling the sweep generator when to produce the measurement gates in sync with the receive window after transmission. The master trigger sets overall timing, the range gate defines the sampling window, and the transmitter trigger starts the pulse—none of these initiate the sweep gating for measurements as directly as the sink trigger.