EID has a long tradition in the development and manufacturing of radio communications equipment as well as in the design and deployment of tactical communications systems, extensively used in combat scenarios and peace-keeping missions under NATO, European Union and United Nations sponsorship. Angola, Mozambique, Bosnia, Kosovo, Timor, Congo and Afghanistan are examples of successful missions where EID equipment played a vital role.
EID is among the first manufacturers who, worldwide, engaged in the development of multi-band, multi-mode tactical radios, featuring fast frequency hopping, embedded encryption, GPS, ALE, Have Quick and IP data capabilities. Resorting to digital signal processing techniques, the PRC-525 is a software-defined tactical radio, covering the 1,5 to 512 MHz frequency range. Accompanying the radio, a wide range of accessories is available: single and double vehicular docking stations with embedded 50W VHF linear power amplifiers, consoles for remote operation, 20W external HF ATU for vehicular applications, 50W VHF power combiners , transportable repeater stations and HF wire antennas. The PRC-525 has been standardized by the Portuguese Armed Forces, and it is also in use in a variety of countries.