In order to assist designers and users of radio sites, ETSI has published a guide on the construction and maintenance of radio sites (EG 200 053). This document provides guidance for engineers concerned with the design, specification, installation, operation and maintenance of radio systems. It is particularly directed towards systems working in the Very High Frequency (VHF) and Ultra High Frequency (UHF) bands but encompasses a measurement range between 9 kHz and 56 GHz in respect of compatibility where co-sited operation of many different users' equipment has become common. However, it does not specifically cover the detailed technology associated with microwave systems, operating at frequencies above 3 GHz.
The Guide examines the objectives of good design and the effects of common deficiencies. It provides recommendations designed to ensure that users avoid interactions which result in mutual interference, spectrum contamination, or danger to personnel or equipment. References and annexes are provided for further reading by engineers who are new to the field or are encountering the problems which are described for the first time.
The Guide also includes information relating to the safety precautions required when dealing with non-ionizing radiation.
Measurement
ETSI is also developing methods of measurement for electromagnetic fields present in and around radio sites, in order to ensure that permitted levels for exposure of workers and the general public to electromagnetic fields are not exceeded. These methods of measurement will be contributed to CENELEC for incorporation in safety standards.