News
Sun Power gives rural communities communications in Botswana:
RNS have recently deployed rural repeater sites in Botswana powered by the Sun, the sites designed in house use a solar array for the power source in combination with a 5 day autonomous battery bank, this combination has allowed for a 24/7 cost effective coverage solution to rural communities that otherwise would have been waiting years for the electrical grid to reach them.
Leakproof Cooling:
Data centre’s are the power house of today’s global economies and with technology moving at ever an increasing speed the heat output from data server racks has increased to levels that traditional systems cannot efficiently deal with. RNS have been working with customers to provide a solution for both the technical problem and the environmental issue of running current systems.
Using direct cooling to the rack, the solution can control each rack separately allowing an individual or system operation to maintain the room at a constant temperature. The key to the solution is using water to cool each rack, ah, water in a data room I hear you say, well having personally drilled 10mm holes in a working system I can guarantee the leak proof system works. The idea behind using water is that a typical chiller needs to cool at about 6 degrees where as the water system works at an average of 14 degrees thus reducing capex with less chillers and opex by up to 60% in regions that have temperatures that fall to 14 degrees or below during winter periods.
The solution also helps reduce the cost of real estate as the racks can be fully populated, thus reducing the amount of racks and the footprint in the data room.
This system not only reduces capex and opex, it also provides a big reduction to an operators carbon footprint and with the current focus on environmental impacts this must be a good thing.
Interference Killers:
As networks develop and more technologies are deployed the issue of interference becomes critical. This has become a major issue in countries where CDMA 850 and GSM 900 are used and it gets even worse if EGSM is deployed, separation between the frequencies are so narrow that the RBS filters can’t eliminate the interference, RNS in cooperation with its technology partners have designed and installed “KILLER FILTERS ” to eradicate this issue in Nigeria, South Africa and Uganda, to quote one operator “interference has disappeared after the installation of the filters, we use to see 90% interference on that site, its now Zero”.
Street Coverage DAS:
Operators have never faced such challenging times with respect to site access. Sites can take two years or more to approve and in some cases they will never get past the environmental impact hurdle. This is where we believe there will a sharp increase in the “Street Das“ concept both from a single operator and multi-operator perspective. The concept is fairly straight forward i.e. BTS Hotels with fibre linked to the remote radio heads. The key differentiator we believe is in RNS`s ability to package the concept to suit the application. This involves having accesse to various camouflaged street furniture solutions that are manufactured to serve as both antenna structure and have street credibility and functionality (street lights, clock towers, bill boards etc.). This needs to be combined with future proof scalable hardware that can deliver current and future technologies such as LTE over the same infrastructure.
