Total posts : 45366
You can make a leaky cable any length.
Trouble is, you can only install the leaky cable on your own property.
It can be buried in the ground or suspended in the air, but when you come to the property line you either stop, or:
a.) negotiate with neighbors to continue the cable through their yards, or;
b.) pay the power pole utility the going rate to have leaky cable carried along the poles to whatever distance you can afford.