Spectrum LS Telcom Customer News Magazine
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Spectrum LS telcom Customer News Magazine Special Edition Special Edition Broadcast Edition 01 l 2014 Latest Radio Frequency and DVB-T2 Network Deployment for Malaysia’s Nationwide Digital Television Rollout LS telcom provides consultancy LS telcom together with its local partner and optimisation with remotely and assists MYTV Broadcasting Wamata Solutions Sdn Bhd (Wamata piloted aircraft. Sdn Bhd (MYTV) in the deploy- Solutions) previously supported MYTV LS telcom together with MYTV ment of their nationwide DVB-T2 in winning the tender ‘to build, operate has already completed a nation- Digital Terrestrial Television (DTT) and manage the infrastructure for the wide site survey of 60 sites to network. Free-to-Air (FTA) Digital Terrestrial Tele- verify the infrastructure availabi- Picture: The MYTV and LS telcom team during the official vision Broadcast (DTTB) service in lity as well as all key parameters influ- launch of MYTV Digital TV project Malaysia.’ After the tender, awarded in encing network planning and antenna work gain, DTT covered areas and April 2014, MYTV has now contracted diagrams. covered population. Wamata Solutions and LS telcom to The next step is to plan the real trans- To ensure smooth cooperation and to provide consultancy services for MYTV’s mitter network, generate the network guarantee a successful network rollout, nationwide radio frequency and DVB-T2 equipment list and the final roll-out plan. a transmission expert from LS telcom network deployment. The previously planned DVB-T2 system will be working onsite with the MYTV The project includes final frequency capacity will be revised and adapted to team during the whole project. planning and allocation, detailed DVB- meet the final Detailed Network Plan- T2 network coverage planning, support ning. LS telcom also reviewed the initial in the preparation of the request for frequency allocation plan based on the proposals (RFP), bid evaluation and the comprehensive data gathered and independent supervision of the trans- reported during the site survey. The final mitter system integration and deploy- frequency plan will then be agreed with ment. The second part of the contract the regulator MCMC and will be ready covers extensive training on DVB-T2 for MYTV to deploy its network. This will operation and maintenance, as well as be followed by a nationwide network measurements for network verification analysis to verify self-interference, net- Airborne Transmitter Antenna Measurements for Radio Señale DVB-T2 Network in Colombia Colibrex GmbH, a 100% subsid- Rohde & Schwarz (R&S) Colombia S.A sea level. The antenna height above iary of LS telcom, carried which installed the DVB-T2 transmitter ground level ranged from 21 m to 146 m. out antenna radiation pattern sites contracted the Colibrex turnkey Juan Carlos Pachon, Sales & Project Table 1 measurements via remotely measurement service via remotely pilot- Manager at R&S Colombia, stated: “We piloted aircraft (RPA) for the ed aircraft in order to determine wanted to deliver the best DVB-T2 net- nationwide DVB-T2 network of coverage deviations from the initial work possible to RTVC. With the Radio Television de Colombia antenna design objectives. Colibrex measurement service via RPA (RTVC). The RPA which includes a measurement we were able to verify the real perfor- and sensor system onboard was used to mance of our antenna installations and measure the antenna radiation pattern thereby demonstrate to RTVC the qual- in the horizontal and vertical planes at ity of our final installation work and the predetermined altitudes and distances real value added of our solution. The Figure 1 Horizontal antenna radiation pattern from the antenna for several high power measurements via RPA are efficient and transmitter sites across the country cost-effective and constitute a real (see example results table 1 and figure 1 alternative compared to measurements & 2). The sites measured are operating carried out by a manned helicopter, the on two or three frequencies and are costs of which would have been prohibi- located in different environments and at tive for this project.” altitudes from 130 m to 3540 m above Figure 2 : Vertical antenna radiation pattern Edition 01 l 2014 I Special Edition Broadcast 02 Broadcast Network Deployment 700 MHz Re-Farming and Re- Spectrum Consultancy, Network Design, Planning, Procurement, Engineering of Television Trans- Roll-out & Optimisation mitter Sites Professional network and coverage planning is the foundation of any robust and cost- Following the last ITU World Radiocommunications Conference in effective broadcast network delivering high quality of service. We cover the end-to-end 2012, new spectrum for mobile wireless broadband was identified at broadcast network deployment process. This includes spectrum planning and coordi- frequencies around 700 MHz. nation, migration from analogue to digital, analysis of potential technologies and various Running from 703 – 803 MHz, it is one of the largest, low frequency planning and optimisation simulations. We take care of bid planning, project and procu- bands, ever to be made available for mobile services. Like all new rement management and assist your roll-out with our system integration services. Our bands, however, it is home to incumbent users who, in this instance, planning results in an effective network roll-out plan. are terrestrial UHF television broadcasters. These television broad- Your Partner for The broadcast industry is undergoing casters have already, in many cases, reduced their use of the UHF Digital TV - from Spectrum rapid change. With technology evolution, band during the switch-over from analogue to digital services, re- Planning to Network Optimisation regulations change and so does the need leasing spectrum that many call the ‘digital dividend’. for frequency spectrum. Digitisation has In order to release this new band for mobile uses, it is now neces- brought many opportunities, but also sary to re-farm any television transmitters in the band (channels 49 many challenges. We can help you to fully to 62 using the Region 1 raster) into channels 48 and below. exploit the opportunities and overcome Depending on the number of stations on-air and the density of the challenges. existing assignments this task could range in difficulty from straight- We assist you in: forward to immensely complex. The resulting plan may change the Supporting You in ■ developing the best spectrum strate- coverage of services and require extensive re-engineering of trans- Managing Your Bid / Initial Planning gies & policies mitter sites. ■ mastering the digital switch-over Confining services into less spectrum can lead to sub-optimal fre- ■ frequency sharing / broadcast protec- quency assignments, to increased interference and reduced tion studies coverage. Careful planning and setting of the transmission parame- ters can make a significant improvement to any reduction in Computer based planning with CHIR- coverage, in particular where there is use of single frequency net- plus_BC for maximum performance of your works. 2nd generation digital broadcast networks. Leading Your Way Through In many cases sites will need re-engineering either because of the Detailed Design & Planning need to replace antennas to produce new radiation patterns, or Various planning simulations, detailed because of large changes in frequency, power or vertical or horizon- antenna design, full network documen- tal azimuth. Reducing the associated costs requires a full and thor- tation... everything to make your network ough understanding of the infrastructure available at each site, and implementation a success. its capabilities. LS telcom has over 25 years experience in the planning and optimi- sation of broadcast services. Our skilled engineers fully understand Your Partner during Your the problems of re-farming the UHF broadcast band, but also know Procurement Process many of the tricks of the trade that can reduce the impact on televi- Get help from our experienced project sion services and, equally importantly, minimise the financial impli- and procurement team to avoid prob- lems and delays throughout your project. cations associated with changes to sites. In addition, we are vendor independent Our sophisticated planning tools will allow accurate modelling of and offer the mix of network equipment transmission parameters enabling the best possible solution wheth- which is most adapted to your particular er in terms of coverage, cost or a balance of both to be achieved. needs. The ability to use the 700 MHz band for mobile services will also be Enhancing Your constrained by the use of the frequencies in neighbouring countries. Network Rollout There are, however, some scenarios which are more detrimental Stick to your timeframe and budget and than others. LS telcom can support you in negotiating with neigh- achieve the desired quality. We make it bouring countries to secure a solution that is more favourable to the happen. We provide detailed network introduction of mobile services in the 700 MHz band. rollout plans, full system integration services and project management. Assisting You to Enable Peaceful Coexistence of DTT & LTE Combine simulated and measured infor- mation to solve and avoid interference and ensure the protection of your scarce frequency resources. Helping You Optimise Your Network Mast inspections and site surveys using remotely piloted aircraft (RPA): true antenna radiation characteristics, EMF checks. Edition 01l 2014 I Special Edition Broadcast