![TETRA Air interface specifications – Overview](https://dsplog.com/db-install/wp-content/uploads/2010/02/tetra_qam_modulation_overview.png)
TETRA Air interface specifications – Overview
TETRA (TErrestrial Trunked RAdio) is a wireless specification intended to be used by government agencies, public health services, rail transport, military etc. TETRA specification comes from ETSI (European Telecommunication Standards Institute). We plan to start a post series on the building blocks of TETRA physical layer and radio specifications and this is the first post…