The push-to-talk switch is described as non-locking with a spring return. What does this imply about its operation when released?

• A. It remains engaged until manually reset.
• B. It returns to its normal position.
• C. It toggles to a new position.
• D. It locks in place.

Answer: (B)

A spring-return, non-locking push-to-talk switch works as a momentary control. When you press it, the mic circuit closes and you can speak; when you release, the spring forces the switch back to its resting, normal position, breaking the mic path again. This is why, after you release, transmission ends and the switch returns to its default state. The other behaviors—staying engaged, toggling to a new position, or locking in place—don’t match a spring-return design.