Cable Preparation Tool Holder for Diplexers · Holder for Diplexers PAGE 7 CASE STUDIES IN DENMARK:...

I N S I D E

www.teracom-c.com No 1 2005 20th Issue

New Medium Power Filters and Combiners PAGE 10

Holder for Diplexers PAGE 7

CASE STUDIES IN DENMARK:

Combining in Telecom & Broadcasting PAGE 8 & 12

Cable Preparation Tool for Multiple Cable Brands

2 FREQUENCIES #20

Although the big push towards digitalisation is not expected to happen before the end of 2006, operators around the globe are getting ready. Many in Europe are anticipating the outcome of the ITU Regional Radiocommunication Conference to be held in Geneva next summer. During the 5 week event, frequency plans for digital terrestrial broadcasting will be developed for Europe, Africa and parts of the Middle East.

When building networks, operators need to be thinking “broadband”. Our parent company, Teracom, deserves a lot of credit for installing our broadbanded hybrid antenna system in Sweden’s major broadcasting stations. This intelligent strategy eliminated the need for retuning antenna systems when implementing the digital channels in Sweden and it will also secure future channel changes. Such thinking is built into everything we develop. Your investments in Ridgid Line, filters and combiners should be long-term, not just in terms of quality, but also considering external factors beyond your control.

Frequency planning is one such factor, as the allocation of adjacent channels can cause interference problems. To solve this, adjacent channels will need extremely sharp filters and demand more advanced technical installation. This is where QuickSite comes into its own. Our latest model, QuickSite DVB-T Adjacent, provides exceptional performance with adjacent channels and 6,7 or 8 MHz bandwidth. This is good news for operators in search of an easy way to boost digital transmissions in smaller towns and rural areas lacking full coverage.

All in all I feel that there is lot going on in the world of broadcasting, not least with the grand plans for digitalisation beginning to come to fruition. Let’s enjoy the anticipation as well as the experience - these are exciting times for all concerned!

Hans DahlénMarketing [email protected]

Frequencies ED ITOR IAL

Editor-in-Chief Björn [email protected] WritersCharles Hodgdon and Simon FrancisPictures Björn RudnertProduction Björn Rudnert, TCC InhouseProof Reading Hodgdon Communications

Frequencies is distributed three times a year by Teracom Components AB. Material in this publication may not be reproduced in any form without written permission. We appreciate your feedback. If you have any sug-gestions, comments or questions concerning Frequencies please email us at [email protected], or send mail to Frequencies, Teracom Components, SE 242 91 Hörby Sweden.

Teracom Components is a Scandinavia-based company which develops and manufactures antenna and coaxial systems for the global broadcasting and telecom markets. Our head office is located in Hörby, Sweden.

More information is available at www.teracom-c.com.

© Teracom Components AB 2005. All rights reserved.

Welcome

The digital march continues

FREQUENCIES #20 3

Cable & Connectors

Easier Installation of Telecom Connectors with Drill-mounted Preparation Tool

With the new cable preparation tool from Teracom Components the otherwise time-consuming task of prepping cables for connectors is both easier and faster.

Teracom Components recently introduced a series of new drill-mounted tools for automated cable preparation. When attached to a standard power drill, these tools quickly cut to the precise prep dimensions without requiring any measuring. The whole process takes only a few seconds and can hardly be any easier for installers who often have to perform this task in confined spaces or other difficult conditions.

Practice makes perfectJonas Svensson is responsible for installation instruction and training at Teracom Components. Through his contact with installers he has observed how quickly many have taken to the new tool. “The tool is very easy to use once you’ve gotten the hang of it,” he says, admitting that for those used to prepping cable manually it may be a good idea to practice on some spare cable. “After trying it out on a few cable ends most people tend to acquire a feel for it rather quickly.”

Every batch tested Jonas is also responsible for making sure that various quality controls are carried out on products from Teracom Components, including functional control of the cable preparation tools.

“Every batch of these tools undergoes functional testing,” he says, referring to the company’s ISO quality control routines. This is done by measuring connector performance, intermodulation and VSWR when mounted on automatically prepared cables. “The measurements we get when using the new tool are as first-rate as those found with manual cable preparation,” says Jonas. Teracom Components’ cable preparation tools are available for use with all major cable brands and in models for ½”, 7/8” and 1 5/8” cable dimensions. An instruction film is also currently in the making that will provide a visual demonstration of how easy automated cable preparation can be.

Cable preparation for 1/2”, 7/8” and 1 5/8” cable are now available at Teracom Components.

4 FREQUENCIES #20

QuickSite Takes On Challenge of Adjacent Channels

Using adjacent channels to receive and transmit DVB-T signals over a single antenna is no easy task. But with the new QuickSite DVB-T, Adjacent, Teracom Components has put together a finely tuned solution for achieving just that.

QuickSite for Adjacent Channels

FREQUENCIES #20 5


When talking about broadcasting solutions for adjacent channels the discussion normally revolves around systems where transmitting takes place over two adjacent channels. In some cases, however, there can be a need for receiving a signal over one of the neighbouring channels, and then transmitting it over the other. “This can sometimes occur as a result of frequency planning issues,” says Per Westphal, a design engineer with Teracom Components R&D department. “And when it does, network planners don’t always know where to turn for solutions that will work well enough under such circumstances.”

Single-antenna solutionAccording to Westphal, whose expertise was instrumental in designing a solution to this particular problem, the new QuickSite DVB-T, Adjacent offers operators a solution

that measures up to the task at hand. And it does so using a single, integrated antenna system for both receiving and transmitting the DVB-T signal. “Whenever you have a large, powerful transmitter broadcasting over one of two adjacent channels,” he explains, “then trying to distinguish a very small incoming signal on the other channel using the same antenna is a very difficult challenge.”

Sharp filtering a “must”Westphal says that these types of situations place extremely high demands on the system to be used, and that without sufficient isolation between channels it simply won’t work. “Only through very sharp filtering and by having all parts of the system optimized for this configuration is this at all possible,” he says.

Every QuickSite is equipped with lifting eye bolts making it very easy to place units on rooftops using a crane, or on mountaintops with the help of a helicopter.

This QuickSite is configured for re-transmitting a single adjacent channel. It can be expanded to handle a total of four channels.

The small cabinet contains a connector box with fuses for each individual module as well as a standard electrical outlet.

QuickSite makes it possible to reproduce and re-transmit error-free signals using the latest re-modulation technology.

The unique and very reliable RF and protective grounding installed in Teracom Components QuickSite is a big advantage, making it safe for even the toughest environments.

We develop solutions to meet any customer’s special requirements, no matter how exceptional they may be. Shown here is an extremely sharp, 10-cavity filter.

QuickSite ships easily to customers around the globe. The tower section is packaged separately and connected to the base of the QuickSite station on-site.

The antenna, shown here with two tiers of three 120° panels per tier, is configured according to the desired antenna pattern.

QuickSite is both small and light, and can easily be moved using an ordinary pallet truck. The cabinet is small enough to fit into nearly any elevator.

6 FREQUENCIES #20


SYSTEM

SPECIFICATIONS QUICKSITE DVB-T, ADJACENT

SYSTEM DVB-T/COFDM

CONSTELLATIONS 16 QAM

GI 1/8

CODE RATE 2/3

IFFT 8 K

BANDWIDTH 6 MHz

RX


RECEPTION FREQUENCY CH 31: 572 - 578 MHz

RECEPTION SENSITIVITY 51 dBµV/m

CHANNEL SEPERATION Adjacent

ERROR CORRECTION FEC

SIGNAL QUALITY RF level

MEASUREMENTS BER pre-viterby

BER post-viterby

UCE counter

EXTRA INPUTS MPEG-2

Clock reference

TX


TRANSMISSION FREQUENCY CH 32: 578 - 584 MHz

TRANSMISSION POWER 100 W RMS

CHANNEL SEPERATION Adjacent

MASK COMPLIENT ATSC

ANTENNA 2 tiers system

ANTENNA PATTERN TX omni directional,

RX one direction

ANTENNA


TRANSMISSION ERP 200W ERP

MAST/ANTENNA HEIGHT 4000 mm

MAST/ANTENNA FOUNDATION Frame 790 x 1570 mm

MAINS 230 VAC/50Hz +15%-30%

TEMPERATURE 0°C to +40°C ~(+20°C to +25°C)

RH 100% RH condensing

ENVIRONMENT


CLIMATE Tropic (including climate control)

WIND SPEED Max 220 Km/h

VANDALISM Basic

CABINET 800 x 990 x 1350 mm

NEMP/LEMP MAINS 3 line

OPTIONAL EQUIPMENT


START LOGIC Temp/Humidity

POWER DISTRIBUTION 3 line, LEMP, NEMP, Power protection

CLIMATE CONTROL 900 W/400 W cool/heat

SUPERVISION Web link via Ethernet TCP/IP

(GUI) or RS232

In order to meet this challenge of receiving and transmitting over neighbouring channels and of achieving very sharp filtering even with 6 MHz bandwidth, Westphal and his team of engineers at Teracom Components proceeded to develop an even sharper filter with 10 cavities.

Tested for best performance“It’s very gratifying to see how well the new filter and QuickSite perform,” says Westphal, who has carried out extensive testing in order to ensure the most reliable operation. “We wanted to be sure that the new model would live up to our expectations and operate dependably under such demanding circumstances,” he says, “which it has certainly succeeded in doing.”

Complete solutionBecause of the differences in frequency allocation and infrastructure from one country to another, customers usually have very special requirements. QuickSite was developed to help meet those requirements in a very convenient way. Simply by specifying desired frequency range, bandwidth, channel, power and coverage pattern, customers can receive a QuickSite built to suit their particular needs. In the short time since its inception, QuickSite has been established as a truly complete, all-in-one solution, featuring simple plug and transmit functionality. “Everyone here is very proud of what we have accomplished with QuickSite,” says Westphal. “It really makes the expansion of digital TV much easier, even in critical environments.”

SPECIFICATIONS FOR CUSTOMISED QUICKSITE DVB-T ADJACENT WITH 6 MHZ BANDWIDTH

FREQUENCIES #20 7

Telecom Products

New Wall Attachment for Popular DiplexerSince its launch in 2001, Teracom Components’ diplexer has become increasingly popular every year. Now, a new wall attachment is being introduced that will make installation faster and easier than before.

Teracom Components’ diplexers for 806-960 MHz and 1710-2170 MHz were introduced a few years ago to help simplify the transition from GSM to 3G. These bi-directional products were designed to facilitate a wide range of combining and splitting scenarios allowing 3G technology to be incorporated at existing GSM sites.

New wall attachmentAs a complement to the diplexer, Teracom Components is now introducing a new wall attachment kit designed to simplify and speed up installation. The standard kit enables fast and easy mounting of two diplexers at a time. The mounting plate included in the kit may also be ordered separately, and can be used for mounting one or more diplexers.

Popular productThe full spectrum of frequency spans for which the diplexer can be used includes everything ranging from TDMA/AMPS 800 to GSM/TDMA 1900 and UMTS. According to Johan Petersson, Product Line Manager, Telecom, the diplexer has proven not only to be highly functional, but a solid performer as well. “Typically our customers are already quite happy with the specifications of the diplexer,” he says, “then they measure the actual product and become even happier to find that typical performance is even better.”

Immediate delivery a big plus Besides its broad functionality and solid performance, the diplexer has been steadily gaining in popularity thanks to a couple of other factors. “One feature that is difficult to specify on a data sheet is reliability when it comes to delivery,” says Petersson. “The fact that we can deliver on demand is one reason why many customers say they now choose our diplexers over others.”

Last longerThe actual design and choice of materials with which the diplexer is built also help make it a favourite with customers of Teracom Components.

“Most other manufacturers use aluminium,” says Petersson, “but we use only silver-plated brass.” This is done to prevent galvanisation, which often causes aluminium products installed in towers to deteriorate over time. In addition, like all Teracom Components antenna line products, the diplexer contains no soldered joints, setting them apart from most others on the market. “Soldered joints can crack as a result of long term exposure to vibrations,” says Petersson, underlining the risk when mounting such products on towers. “Therefore we have put a lot of effort into finding alternative solutions for manufacturing our diplexers.”

8 FREQUENCIES #20

Background Broadcast Service Danmark A/S (BSD) is responsible for the development, operation and maintenance of Denmark’s network infrastructure for analogue and digital broadcasting. As such, BSD performs services for the main providers of national and regional radio and TV programmes in Denmark. Clients include both publicly and commercially owned companies such as DR, TV2 and Sky Radio.

Challenge Like many other countries, Denmark has begun the process of migrating from

analogue to digital radio broadcasting. The installation of the country’s first DAB multiplexer alone has provided 85% coverage. Still no one knows for sure when analogue-broadcasting operations will be finally terminated, so the capacity and condition of the country’s FM transmission equipment remains an important issue for the Systems Department at BSD. With the popular Dutch-based Sky Radio expanding into Denmark, and convinced that FM will continue to play an important role for at least another ten years, BSD wanted to ensure that its FM network would continue to operate

Broadcast Service Danmark – Efficient, Cost-effective Upgrade of FM Stations

smoothly even at full capacity, if ever required. The problem was that the combiner systems operating at three stations, Skamlebaek, Naestved and Nakskov, were not dimensioned to handle the maximum output power generated by newly installed transmitters. Consequently, engineers at BSD were faced with the task of upgrading its combiner systems at these three sites. - “Our first priority was to make certain that we could provide long-term stability even at greater power output than what we had been using,” says Jens Christian Seeberg, a veteran Systems Consultant at BSD with 25 years of

Case Study - Broadcasting

Nakskov station prior to installing a re-tuned combiner (foreground) previously removed from Naestved station. The combiner was used to replace a single filter, seen here behind an existing combiner, in order to add a second channel.

FREQUENCIES #20 9


Naestved station following installation of a new, larger combiner (foreground) and a new 2 way splitter mounted upright on the back wall.

RL98 60kW 2-way splitter with U-link panel for Band II installed at Naestved station. This is the first time this configuration has been used for FM and was customised to fulfil BSD’s requirements.


experience in the field. “The second was to achieve this as efficiently and as cost effectively as possible.”

Solution After carefully examining the situation at hand and taking inventory of the equipment at its disposal, BSD then contacted Teracom Components to discuss how to go about realising both of their main objectives. The idea was to reuse as much equipment as possible through retuning and other minor adjustments, thereby minimising investments in new equipment to just one, larger combiner. Through close cooperation and teamwork Teracom Components was able to quickly provide and install the new combiner, returning home with the replaced unit together with a filter that had been in storage at BSD. Both units

were then retuned to another frequency at Teracom Components facility, and later installed at one of the other sites. - “Recycling combiners is always good economy,” says Jens Christian Seeberg, “but in this case, the greatest profit was derived from carrying out the operation through very close teamwork.” The cooperation to which Seeberg refers involved not only BSD’s Systems Department and Teracom Components’ engineers and installation personnel, but also included the group of BSD technicians who actually run the transmitters. - “By including all essential partners, everyone involved knows exactly what’s going on and can work together to achieve the best possible results,” he says. “This is something which we highly recommend to anyone who is faced with a similar situation.”

ONE MOMENT……MATS EKAs a Network Consultant and Technical Director at Progira Radio Communication, Mats Ek is currently working with several operators around the world, assisting them with network and frequency planning in preparation for the switchover from analogue to digital broadcasting. We caught up with him to see what advice he had to offer…

Which are your best tips concerning preparation for the switch from analogue to digital technology?

One of the best tips I can give is to be aware of what you want to achieve with the network before you start e.g. what demands do you have for coverage and which services will be offered. It is essential to set these objectives before the construction begins. Accurate planning can save both time and money in the long run.

Any other suggestions?

Depending on what you want to achieve with the network, it can be very beneficial to use the existing infrastructure wherever possible. This is in everybody’s financial interest, and one of many factors that can affect profitability in the end.

Do you have any concrete examples of how to take advantage of existing infrastructure?

Begin by looking at existing stations and assessing whether or not they are suitable for the new plans. By going through this process site by site, you can see if the existing technical equipment and antennas can be reused. This does, however, depend on how the network is to be used and the coverage requirements. For example, if there is need for extensive indoor or DVB-H coverage, then SFN may be advantageous and this requires stations to be located closer together.

10 FREQUENCIES #20

Broadcasting, Telecom & Datacom

More Convenient Combiners with ‘Smarter’ Filter

Using the same space-saving techniques implemented with the somewhat larger 2.5 kW UHF filter, Teracom Components has developed two new and very compact filters for Band IV-V. The first is a 1.5 kW filter with 6 cavities and the other a 1 kW filter with 8 cavities. Each is built around a more intelligent mechanical design than previously used with filters of this power class, providing several important advantages. One new feature is the ability to have inputs and outputs of different sizes and types. “If the customer wants a 3 1/8” input connection and a 1 5/8” output connection, then that’s what he gets,” says Per Westphal of the R&D department. This eliminates the need for additional hardware such as adapters, making it a much more convenient and economical solution for the customer.

Greater flexibilityAnother advantage is enhanced trimming capabilities for tuning to alternative frequencies within the UHF band. “In fact, these filters can be trimmed to 5, 6, 7 or 8 MHz bandwidth without having to replace a single part,” says Westphal. But the biggest plus with the new filters is their small size and convenient format. “Many suppliers of transmitters these days are asking for equipment that can be mounted in a 19” rack,” says Westphal. The previous 1 kW filter was long and difficult to place in a 19” rack or to build compact combiners with, and its connections were not as accessible as they are on the new filters.

Combiners tooAccording to Westphal, the new filter design has made it possible to build far smaller combiners in relation to output power. As a result Teracom Components has now introduced two new UHF constant impedance combiners for 2-3 kW, with 8 and 6 cavities respectively, designed specifically for placement in a 19” rack. Like most of Teracom Components’ other combiners the new units come with temperature compensation as standard. And judging by some of the response received even before these new products were actually introduced, there is reason to believe they will be quite popular.

“We received an order from one customer for twenty units even before the complete specifications were ready” says Westphal.

Additional modelsA dual combiner solution using the new filter is also available. This consists of two combiners topped of by a splitter for running parallel systems. Dual combiners are commonly used for security or service purposes in countries like Sweden, Denmark and Finland. Additional combiner models are currently scheduled for launch later this year that will provide cross-coupling for even sharper filtering.

A pair of new UHF bandpass filters has paved the way for more flexible and compact UHF combiners. These filters and combiners have been designed in large part to provide greater convenience during installation.

The new series of filters and combiners for 19” rack mounting features a flexible design that allows easy integration with existing systems. Available with 6 or 8 cavities.

FREQUENCIES #20 11

Absorbers receive complete makeover

Our series of absorbers have received a complete makeover and are now

available in a more compact and sleek design. In addition, these redesigned

products feature even higher performance than before, with return loss/VSWR

values approaching those of reference class units used for professional

analysis. Absorbers are available in 5, 25 and 100 W models.

Familiar face gets back on track

Johan Petersson (right) has returned to his former position as Product Line Manager, Telecom.

Johan served in this position up until the spring of 2003, so he is a familiar face to many of our

Telecom customers.

Johan is a true outdoorsman, and this time of year he spends most of his free time playing golf

or touring the countryside on his Yamaha motorcycle. This past winter he even, for the secon time,

competed in Vasaloppet, the oldest and longest cross-country ski race in the world, spanning 90

km through the woods of northern Sweden.

New Faces at Teracom Components

Returning from Down Under

Christel Berquist (left) is another face returning to Teracom

Components, this time as Area Sales Manager, Telecom. Christel rejoins us from New Zealand

where she has just spent 18 months satisfying her lust for adventure.

A true sports fanatic, Christel relishes new challenges which she proved when she completed

the ‘Swedish Classic’ - a host of running, swimming, cycling and cross-country skiing endurance

events, which are to be completed within a 12 month period.

As we know from her previous time here as Account Manger, Broadcasting, Christel is a

pleasure to work with and we are proud to welcome her back to the fold.

Switch from Parent to Subsidiary

Magnus Wiberg (right) has recently joined the ranks of Teracom Components from our parent

company, Teracom, taking over as Area Sales Manager, Broadcasting from Daniel Sandblom. A

veteran employee of Teracom, Magnus has previously been involved in numerous DVB-T related

projects, including the European projects Validate, Motivate and DRiVE.

Magnus counts football as one of his interests, although being a devoted fan of English team

Derby County does test his patience at times. Also a keen cyclist and angler, he has made use

of his cycling skills by twice taking part in Vätternrundan, a 300 km bike ride around Sweden’s

second largest lake.

Regarding his new role Magnus says, “I am looking forward to the challenge of digital

broadcasting and I relish the opportunity for increased customer contact.”

12 FREQUENCIES #20

Case Study

Telia Denmark – Unique Problem Calls for Speedy Solution

BackgroundIn 2004 TeliaSonera acquired Orange Denmark and began planning the fusion the mobile telephony company with Telia Mobile Denmark. Suddenly, Telia Mobile was in need not only of improved GSM coverage, but also increased capacity for handling some 500,000 subscribers to be migrated from Orange. At the same

time, preparations were underway for an extensive launch of EDGE (Enhanced Data rates for Global Evolution), which would require significantly increased capacity in the GSM network. As all of these efforts progressed, some unexpected problems arose that would require unique and speedy solutions.

ChallengeWith the decision made to utilise Orange’s existing capacity until their subscribers could be migrated to the expanded Telia Mobile network, the two networks would have to be temporarily combined in order to provide the best coverage for all subscribers. To do this Telia Mobile would need to operate two separate GSM networks on joint feeders and antennas at several locations. Vast numbers of base stations would have to be combined, on both the RF and the transmission side, in various configurations of 900 and 1800 MHz. Although the technical solution was selected relatively early in the planning, subcontractors found it impossible to obtain the specified equipment in time to meet Telia Denmark’s rollout schedule. This was due in part to the fact that the required components are generally low volume products and that this operation called for huge volumes of them to be delivered right away.

SolutionConsequently, Telia Denmark was forced to begin scanning the market for alternative solutions. “Several potential suppliers were contacted,” says Kasper Morville, Senior site manager at Telia Denmark, “but Telpartner and their partner Teracom Components were the only ones able to provide us with products that comply with our strict technical requirements, in such great numbers and at such extremely short notice.” With a proven track record of providing solutions to the broadcasting and telecom markets, Telpartner set the ball rolling. Sales Director Lars Knudsen explains: “Telia needed to combine two major networks and increase capacity

A behind the scenes look at what can happen when two mobile telephony operators are merged together.

Kasper Morville, Senior site manager at Telia Denmark visiting a base station with 3dB-couplers, jumper cables and absorbers from Teracom Components.

FREQUENCIES #20 13

ANDERS MATTSSON

Product Line Manager, Broadcasting

Tuning In

all at once. To succeed we needed to call on a reliable partner that could provide components in record time, so we turned to Teracom Components, our long-term partner. This collaboration laid the foundation for completing the task at hand, and the necessary products were quickly determined.” “It was also crucial to the operation that the specifications for these products meet all requirements for enabling greater network capacity,” added Knudsen. In no time at all, Teracom Components began shipping all the 3db couplers, jumper cables, loads and diplexers needed to connect the base stations. Telparnter played another key role in the project by managing logistics on behalf of Telia, packing all necessary products for each individual site and ensuring correct distribution to Telia’s various subcontractors.

Digital Broadcasting – takes centre stage!

A buzz phrase on the lips of the broadcasting world is “Digital switchover”.

This boils down to the switch-off of analogue terrestrial transmissions networks

in place since the 1930s and their replacement with completely digital terrestrial

networks. Europe’s migration to all digital broadcasting is in full swing, with most

European countries already conducting trials.

Since the start of the digital revolution in the beginning of the 90s the process

of digitalisation has not gone as smoothly as anticipated for various reasons. The

introduction of digitalisation demands intricate planning and huge financial resources.

Many countries simply chose to sit back and to let the technology develop before

beginning the implementing process. Now, however, as deadlines for the switch-over

are being presented around the globe, the digital boom appears to be just around

the corner.

Showcase for HDTV

With Digital television being a far more efficient and flexible than analogue systems,

viewers will be offered a host of new and different services. HDTV is one exciting

example and a very hot topic these days. Operators such as BskyB and Canal+ have

already signalled their intentions to start HDTV broadcast services next year with the

2006 FIFA World Cup in Germany being billed as the showcase event.

Although we in the broadcasting industry regard digitalisation as the greatest

development since the introduction of colour television, viewers will see HDTV as the

champion of quality. When that genuine cinema feeling hits the living room with big,

widescreen TVs and surround sound systems, a digital set top box will suddenly seem

like a worthy investment and an essential addition to every home.

DVB-H and 3G brothers in arms

Broadcasting television to mobile handsets has been the most talked-about

application this year, and DVB-H (handheld) will be the key to ensuring that target

receivers can operate from a battery and on the move. Trials are being conducted in

cities all around the world, from Europe to North America and Asia.

I firmly believe that DVB-H is the way forward and that it will pave the way for

the next generation of wireless technology. Far from competing with 3G, DVB-H will

develop to be an ideal companion to 3G telecommunications, offering symmetrical

and asymmetrical bi-directional multimedia services.

With all of these developments now gaining momentum, the digitalisation process

is finally beginning to move in the right direction – toward a new and exciting era in

the history of broadcasting.

Lars Knudsen of Telpartner in Denmark is very satisfied with the solutions provided to Telia Denmark for combining transmitters.

14 FREQUENCIES #20

What’s up

Upcoming Events

Here are some of the venues where you

will be able to keep pace with what’s

happening this summer:

BIRTV (Broadcasting)

August 25 - 28, 2005

Beijing, China

www.birtv.com

MTC 2005 (Mast & tower industry)

Sept. 6 - 7, 2005

Mora, Sweden

www.telemastic.se

IBC (Broadcasting)

Sept. 9 - 13, 2005

RAI Center, Amsterdam, The Netherlands

www.ibc.org

New VHF filter and combiner

A new VHF filter developed by Teracom

Components is the cornerstone of a new,

highly reliable 8 kW VHF combiner. The 4kW

filter provides very sharp filtering for Band III

applications. Based on window technique, the

filter’s design avoids the use of contact springs

and incorporates a copper resonator to provide

stable, high power performance. These new VHF

products have 6 cavities and are available with

optional cross-coupling.

DVB-H Directional Coupler for the US market

Digital Video Broadcast-Handheld (DVB-H) is designed

for handheld battery powered devices such as mobile

telephones and PDA’s. One such system is currently

being proposed in the US at L Band frequencies. Larry Boone, President of Acorn

RF, says, “In anticipation of this business we have developed a low cost versatile

directional coupler for the monitoring of such systems.” According to Boone the

systems proposed are very much like cellular applications requiring large volumes,

high specification and a need for competitive pricing.

“Video reception by mobile telephones is increasing in popularity around the

globe due to greater 3G data rates and hardware becoming more readily available,”

says Boone, “I believe the system will achieve rapid success and could easily find its

way into the home competing with some of the established technologies currently

available.”

Teracom Components meets EU Directive EU Directive 2002/95/EC on the restriction of the use of certain hazardous substances

in electrical and electronic equipment basically states that, from July 1, 2006, new

electrical and electronic equipment for the European market may not contain any one

of six hazardous substances, including lead, mercury and cadmium. Also referred to

as the RoHS Directive, its aim, quite simply, is to contribute to the protection of human

health and the environment by firstly restricting and then eliminating the use of these

substances.

Teracom Components has long demonstrated awareness for important

environmental issues, and this one is no exception. “We are both pleased and

proud to say that our standard coaxial program is in full compliance with the RoHS

Directive,” says Håkan Nilsson, Environmental Manager for Teracom Components.

Adapters, directional couplers for telecom

Adapters and directional couplers are

two products not currently found in our

telecom catalogue, but that are always

available at Teracom Components. We

stock various types of adapters(7/16

and N) . Another product, not widely

known from our telecom product range

is directional couplers for mobile network

frequencies.

FREQUENCIES #20 15

Contact Us

HANS DAHLÉN Director Marketing & SalesE-mail: [email protected]: +46 415 166 11 Mobile: +46 733 76 41 74 Fax: +46 415 166 01

ANDERS MATTSSON Product Line Manager, Broadcasting E-mail: [email protected] Phone: +46 415 166 14 Mobile: +46 708 64 64 14 Fax: +46 415 166 01 Direct fax: +46 708 646 317

MAGNUS WIBERG Area Sales Manager, BroadcastingE-mail: [email protected] Phone: +46 415 166 15Mobile: +46 708 80 47 18Fax: +46 415 166 01

KRISTIN BÖRSTADSales Support Manager, BroadcastingE-mail [email protected]: +46 415 166 07Fax: +46 415 166 01Mobile: +46 708 80 47 19

BJÖRN RUDNERT Marketing Communication Manager E-mail: [email protected] Phone: +46 415 166 12 Mobile: +46 708 64 64 16Fax: +46 415 166 01

JOHAN PETERSSON Product Line Manager, Telecom E-mail: [email protected]: +46 415 166 13 Mobile: +46 733 60 13 36Fax: +46 415 166 01

CHRISTEL BERGQUISTArea Sales Manager, TelecomE-mail: [email protected]: +46 415 166 10Fax: +46 415 166 01Mobile: +46 708 80 47 15

SARAH MATTSSON Customer Support, Telecom E-mail: [email protected]: +46 415 166 08 Mobile: +46 708 80 47 08Fax: +46 415 166 01

JONAS BRANDT Area Sales Manager, Asia E-mail: [email protected]: +86 10 6439 1293Mobile: +86 13 70 120 73 07 Fax: +86 10 6439 1295

MONA WANGArea Sales Manager, ChinaE-mail: [email protected]: +86 10 6439 1293Fax: +86 10 6439 1295Mobile: +86 1380 1101 113

GARY WANGArea Sales Manager, ChinaE-mail: [email protected]: +86 10 6439 1293Fax: +86 10 6439 1295Mobile: +86 1391 0024 055

LARRY BOONE Area Sales ManagerE-mail: [email protected]: +1 207 627 74 74 Mobile: +1 207 838 05 79 Fax: +1 207 627 7473

DEBBIE SCIACCAOffice Manager, AmericaE-mail: [email protected]: +1 207 627 64 64Fax: +1 207 627 64 63Mobile: +1 207 831 64 66

EUROPE OFFICE

ASIA OFFICE AMERICA OFFICE

MAIL B ECONOMIQUE Sender: Teracom Components AB, SE 242 91 Hörby, Sweden

SVERIGE

PORTO BETALT

PORT PAYÉ

FOR USERS. BY USERS.EUROPE, HEAD OFFICETeracom Components AB, SE-242 91 Hörby, SwedenVisiting address: Östra Sallerup, Hörby, Sweden Phone: +46 415 164 00 Fax: +46 415 164 01 E-mail: [email protected]

AMERICA Teracom Components Inc298 Roosevelt Trail, PO Box 830 South Casco, Maine 04077, USA Phone: +1 207 627 74 74Toll free: +1 866 407 22 66 Fax: +1 207 627 74 73 E-mail: [email protected]

ASIATeracom Components / EXIR4th floor, Building 103Wangjing New Industrial Zone, LiezeyuanChaoyang District, 100 102 Beijing, P.R. China Phone: +86 10 6439 1293 Fax: +86 10 6439 1295E-mail: [email protected]

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