Radiophone

Terrestrial  Radiophone (conventional or trunking)

Terrestrial communication Service in UHF and VHF, conventional or via  trunking.



Aeronautic  Radiophone

Aeronautic communication service via radio in HF e VHF.



Maritime Radiophone

Maritime communication Service via radio in HF e VHF.

 

Trunked Digital Tetra Radiophone

It is a digital radio communication service  for mobile communications including two radio ways (full-duplex), telephony,  and messages and data transference. The transmission of Tetra radio is carried  out by TDMA (Time Division Multiple Access)​​