Unsecured Frontier Receiver

Unsecured Frontier Receiver - Radar
Class 3 Hacking Site
NPCs - Hostiles

First Encounter
Emergent Defender x5 (Frigate Class - )
Awakened Preserver x3 (Cruiser Class - )

Killing the last Awakened Preserver triggers the next spawn.

First Wave
Awakened Defender x3 (Cruisers Class)
Awakened Upholder x3 (Cruiser Class - )
Awakened Preserver x1 (Cruiser Class - )

Killing the Awakened Preserver triggers the next spawn.

Second Wave
Emergent Upholder x4 (Frigate Class - )
Sleepless Defender x1 (Battleship Class - )

Killing the Sleepless Defender triggers the next spawn.

Second Wave
Emergent Defender x4 (Frigate Class - )
Sleepless Preserver x2 (Battleship Class - )

(Source)