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If the leaky cable did leak, and enough signal bled out of it to meet the field limitations, where would the cable be located?
Would it be buried along the fence-line of the yard?
It couldn’t do as well as carrier current because it wouldn’t go out into the neighborhood and into the houses.
After midnight you could drape it through the trees in all the backyards, just watch out for dogs.
Pay a cable line-man a 50 and he might string it for a block up on the poles for you.