The best all-day locater call is a box call. Just better be ready to set up right where your feet are in the event of a close encounter of the gobbling kind. Depending on the birds, there are many locater calls that can work. Where I hunt easterns, they don't gobble much to locater calls.

I owl hoot au naturale with consistent positive results when they're on the roost in the mornings and evenings.

Hal