TETRA is short for TErrestrial Trunked RAdio and is a new unreasearched form of microwave mobile communications technology to be used by emergency services.
Since its inception. TETRA technology has come across vociferous opposition from both scientists and the public due to the nature it transmits microwaves in frequencies that are close to those of the human brain. Many police officers who currently use TETRA handsets and powerpacks are known to have suffered serious health effects from its use. For more information about the dangers of TETRA phone masts please visit the TETRAWATCH Website by clicking the link below. | 
