Which setting is not a High Frequency setting for GTAW?

• A. Low
• B. Pulse
• C. Balanced
• D. High Frequency

Answer: (C)

In GTAW, high frequency controls are about starting and stabilizing the arc using a high-frequency signal. You’ll see options that change how the HF signal behaves or is applied—like low frequency, a pulsed mode, or simply enabling high frequency for the arc.

Balanced, on the other hand, is an AC waveform setting that adjusts the ratio of time the current spends in the cleaning action versus penetration during the alternating cycle. It changes how the arc interacts with the workpiece, especially on aluminum, but it does not alter or control the high-frequency aspect of the arc.

So the setting that is not a High Frequency setting is Balanced.