Yes Tony all of that is a funtion from the gate signal,but it's still not the primary purpose of the gating.What your talking about uses the gating pulses,but it's not the main funtion.
What would you need a manual adjusted frequency for? We're not looking for how to make the frequency,we all know how to do that.We're looking for the reason we need gating.
Look at my other question about LC Resonance.
Don