Rai Way, previosly Technical Division of RAI, since the beging have been focus by great attention on controlling the quality of the signals transmitted. First Control Centre started its activity on the 2nd of september 1929 in Sesto Calende.
The Centre's activity consisted in the daily control of frequency occupation, a task that was once unquestionably easier because of the lower occupation levels of frequency ranges (Medium Wave and Short Wave ranges) but just as essential because of the lower carrier frequency stability and of the lower reliability of transmitter stations. Later on, at the beginning of the '50s, with the installation of FM radio and TV network transmitters, the Control Centre faced new challenges, the first of which was to extend electromagnetic field measurements and monitoring techniques also to the new FM and TV transmitter frequencies.
The Monza Control Centre
It was then decided to set up a new facility and work on a new Centre began in 1953, the location chosen being within the premises of the Park of Monza, on a clearing far from surrounding buildings and perfect for reception as there was no interference from high-voltage power lines and it was also sufficiently distant from the mountain range.
The Monza Control Centre was inaugurated in May 1954 and was built on the design of the architect Giò Ponti, based on a preliminary study by RAI which, on the basis of past experience, established the number, the distribution and the size of the rooms that would accommodate offices, measuring instruments and several other services.
The following are installed around the Centre's main building but far from any obstacle or tall trees:
- Rhombic antennas for Short Wave reception
- VHF and UHF antennas for any radio broadcasting frequency band and any polarization, mounted on a revolving framework situated on the top of a 55 m tower
With respect to Long and Medium Waves, it is possible to control transmitters scattered through all of Europe, North Africa and part of Russia and, although more limitedly, it is also possible to receive from transmitters in the Middle East, Northern and Central Africa and Asia Minor.
In the Short Wave range, it is possible to control stations anywhere in the World.
The Sorrento Control Centre
The Sorrento Centre has been in operation since 1967; it stands at 500 m above sea-level, in a location overlooking the Gulfs of Naples and of Sorrento.
The Sorrento Control Centre was built on the design of the Neapolitan architect De Martino and, because of the orography of the terrain, its lay-out is mainly vertical and its activities are perfectly complementary to those carried out in Monza.
Widespread Quality Control
Rai Way also has a capillary control network capable of providing detailed information on the radio and television signal reception conditions in the air. The network is structured in a hierarchical configuration and enables the detection (continuous, by random sampling, at scheduled or conditioned time intervals, etc.) of events or situations that depend both on the system used (characteristic parameters) and on the surrounding conditions.
The control network's capacity is such that it can be used both for internal purposes and also be partly allocated to meet Customize. Ray Way offers a "key in hand" control service with real-time detection of relevant events and periodic Reporting on the main parameters monitored.