The antenna measurement facilities of NCSR Demokritos include an RF-shielded anechoic chamber, which is a unique measurement infrastructure in Greece and is currently used for the determination of antenna characteristics. The measuring equipment includes Vector Network Analyzer (300 kHz – 9 GHz), Spectrum Analyzer (9 kHz – 40 GHz), RF signal Generators (5 kHz – 40 GHz) and various sets of reference antennas (from 80 MHz up to 40 GHz). This infrastructure is used for the provision of specialised services to companies and research institutes involved in the design, development, testing and support of wireless network infrastructures.