How to set a wide resonator spread radius for a portal?
Solution 1:
Resonator distance from the portal center is determined by your distance when you place the resonator. Stand 50m away from the portal and the resonators will be 50m. Stand 1m and the resonators will be 1m away.
When using the "deploy" button without selecting a resonator slot, it will select one of the open direction slots and deploy there. I believe it begins with the one closest to you, but I'm not 100% certain