After The Last War the North went into deep isolation.
The Network was limited to only what was available in the North, no outside news was allowed. This went on for fifty Seasons.
Frident used this antenna to broadcast a pirate signal with current events of the world to the North. It was illegal for any other source to respond or repeat any of his broadcasts many still tuned into his stream.
After the Isolation Frident was labeled "The Wire to the North" for being the only contact the North had with anyone outside of the Rim.