[9e6] How to get the Radio Station (spoilers :D)

[Ishimuro]

Keep exploring your map with your ship and the scout towers that reveal the map.
At some point you will get a notice that your crew found a radio station you maybe should visit, the game will mark this radio station at the map.
Visit the station, there you can rescue the "radio technican", that one will also have the "radio equipment". The technican will tell you he needs to find the transmitter.
Keep exploring, at some point you will get a notice that the radio tower is in range and you should visit it.
Visit the tower, salvage the transmitter, do the research and build the radio station.