Design for a long and short distance radio wave communicating lifeform

Having read previous questions on radio wave communication on biological creatures would it make sense for race of alien creatures to have developed dish like bone structures for radio wave communication( metal if needed and assuming they had all organelles needed)

soldier types of the species would have smaller dishes at the back of their head facing forward (purely for aesthetic reasons with antler type horns at the side to protect the dish and act as defence) able to have information relayed from other soldiers, giving it a 3 dimensional view from information given from watching soldiers as well as orders and update.

Larger creatures almost triceratops like, their horn acting as the feed horn and frequency receiver and their back shield structure as the satellite dish large enough to receive long distance radio waves from within the solar system or for observetory reasons or as a really slow (years of waiting) for interstellar messenges if they play a stealth role in enemy planets.

would these dish like structures make evolutionary sense or would small transmitters and receivers within the creatures body hidden from view be more effective?

posted about 5 years ago

Aizen-sama‭

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