Product Manual

Product Manual for Tornado Radio Unit
51
It is recommended that the radio unit is installed in a dry, dust-free room. If this is not possible then the waterproof
boot must be fitted to protect the unit.
Equipment ventilation
A thermal study should be carried out for each site to check and ensure that thermal conditions within the
enclosures do not go beyond the radio units operating limit. If the temperature of the site is known to exceed the
operating limits of the unit, then the enclosure must have an air conditioning, or a forced air system installed to
stabilise these excursions.
Lightning protection
Lightning protection is important to ensure the protection of the tower, antenna and the radio equipment hardware.
Below shows the point earthing concept recommended.
The technique recommended to protect the radio unit, antenna, feeder and tower uses earthing kits in strategic
places. The key points are: adjacent to the feeder connector at the antenna, where the feeder leaves the base of
the tower and where the feeder enters the building structure. If earthing kits supplies are limited or connection to
an earth point is difficult, then order of importance of the earthing locations is as follows:
(a) For a top mounted antenna acting for lightning protection:
1. At antenna connection point.
2. At the tower base.
3. At the entry to the building.
(b) For a general mounting of antenna:
1. At the entry to the building.
2. At the tower base.
3. At the antenna connector.