Cables used in site installations are typically used to either link antennas to other equipment such as amplifiers, to provide power or for control applications. Typical requirements are weather resistance, UV stability, flexibility and, in many cases, LSOH (low smoke zero halogen) materials.
Cables for site installation systems
Habia Cable has an extensive range of UL approvals including:
- UL 444, types CMH, CMX, CMUC, CM, MP, CMG, MPG, CMR, MPR, CMP and MPP
- UL 1685
- UL 1666
Products especially recommended for site installations include:
- Speedflex, the LSOH alternative to RG cables
- Speedfoam, Low Loss flexible cables
- our cost reduced 'T' versions of the PE RG cables
- custom designed multicore control and signal cables
Remote Electrical Tilt (RET) or Variable Downtilt antennas enable mobile phone network operators to adjust the beam of an antenna to meet changing conditions such as variations in the density of traffic during the day. By doing so it is possible to optimise the network.
Typically the movement of the antenna array is controlled using an RS485 signal carried over a multicore cable together with electrical power to drive some kind of motor. The protocols for controlling the antenna in this way have been drawn up by an industry body, the Antenna Interface Standards Group (AISG).