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Fuel and Generator Management

Posted in Energy, Installation on Saturday, 31 March 2012.

It is important to realize that the Generators are Vital secondary source of power generation after Grid Main Power  and at times it is even the primary source of power on prime locations and sites on remote areas. Due to the heavy and continuous load shedding, it is tough for operators to keep their generators up and running durring the load shedding hours. To have the diesel generators on standby and functional, there must be enough fuel available in tanks. Fuel, without quetion is a very expensive asset and in telecom operations and accounts for at least 35-45 % of the operational cost. There are many loopholes in fuel filling and consumption that can incure a huge cost for operator.

Link Installation

Posted in Energy, Installation on Saturday, 31 March 2012.

The design and construction of a microwave radio link network is based on a number of factors. These include:

  • Distance between microwave radio terminals;
  • Terrain properties, eg bodies of water, cliffs, forests, snow;
  • Frequency of operation, often governed by licensing costs, frequency availability, planned distances and even susceptibility to rain fading;
  • Interference management to the microwave link receiver. Generally managed by allocating a clear frequency pair by the Regulator, but for frequency bands 'sold at auction' or with delegation, eg Defence communications and large carriers, this becomes the management responsibility of the band licensee/owner;
  • Fading, dispersion and multipath distortion;
  • Size of antennas, feedline properties, need for towers and masts, and for high gain antennas - even the stability (both tilt and torsional properties) of the supporting mast must be engineered to avoid the antenna beam being mis-directed due to wind or ice on the structure;
  • Management of moisture inside external waveguides;
  • Management of equipment, power and security alarms, remote control switching and order wire systems.
  • Council, Local Government, FAA, CASA and community development permissions governing visual and controlled airspace intrusions;
  • Cost of equipment and cost benefit analysis including equipment maintenance;
  • Satellite communication links are also classed as microwave radio links, but given their minimal exposure to atmospheric conditions, these type of microwave links can operate at minimal fade margins, ie having minimal contingency in the level of received signal strengths;
  • Availability of equipment, spares, maintenance, test equipment and skilled staff;
  • Sun transits for microwave link receivers facing at the eastern or western horizons. The issue here is that the "sun noise" will often overwhelm broadband microwave receivers, generating what is called a 'sun transit outage'. Same deal for satellite communication links as well.

Talk Nepal with its experienced teams has been perform this service that includes the following tasks for Green field and Rooftop GSM sites :

  • Indoor Installation of Microwave transmission Equipment
  • Outdoor Installation of MW antennas, cables & their clamping accessories
  • MW equipment configuration & antennas Orientation and set and measure all parameters correctly in accordance to MW link design.