Tweak the logistics and construction ranges of all roboports by global decimal multipliers.

The range of the logistics area and the construction area can be tweaked independently.

For example, a value of 2.0 will double the coverage range, effectively quadrupling the coverage area of all roboports, including roboports added by mods.

The settings default to 1.0 (no change). Tweak the values in the Startup tab in Settings > Mod Settings from the main menu.

Tip:
To make the logistics range and construction range equal, set the logistics multiplier to 2.2x of the construction multiplier.
For example, if the construction multiplier is set to 1.5, set the logistics multiplier to 3.3 (1.5*2.2) .

If you want to increase the distance robots are able to travel before needing to recharge at a roboport, check out my other mod: Robot Power Multiplier

Note:
If you change the roboport logistics multiplier for an existing save, the connections between your roboports will not be automatically updated. Use console command /reconnectroboports to fix this.