scope:

This draft European Telecommunications Standard (ETS) addresses the requirements for directional antennas to be adopted in conjunction with new Point-to Point (P-P) systems and Point-to Multipoint (P-MP) systems limited to outstation applications only, operating in frequency bands from 1 to 3 GHz (see ETS 300 630 [3] and ETS 300 636 [4]).

In the case of a central station in a point-to multipoint system, where omnidirectional and/or sector beam antennas could be adopted, these antennas do not afford discrimination for co-ordination purpose. It is anticipated that in these instances, local administrations/operators will use alternative (e.g. Geographical) methods of co-ordination.

The application of these digital radio-relay systems is anticipated to be for point-to point and point-to-multipoint links in local, regional and national networks, mobile base station connections, customer access links, telemetering and telecontrol (including transportable and offshore use).

There is a wide range of antennas suitable for use with these categories. Some typical examples are parabolic reflector, horn, short-backfire and yagi.