Speaking at 2005 UPLC Annual Conference, Victor Dominguez, DS2's Director of Strategy and Standardization, outlined the reasons why DS2's 200Mbps powerline solution is the only regulatory compliant technology available for BPL commercial deployments.

Dominguez was dismissive about claimed alternatives to DS2.

Mr Dominguez was adamant about competitors claims "I think that we have put the competition on the defensive. Our competitors would love to have the flexible notching capabilities that we have for BPL and In-Home PLCs, but the truth is that they don't. DS2 has had dynamic notching since its first chip set and can mitigate radio interference in a programmable way and other PLC chipsets do not. We would like to thank our competition for the rumours propagated at several press interviews, they have been attracting attention towards one of the main competitive advantages of our technology, we mastered programmable notches in a 200 Mbps chipset more than 2 years ago, since then we have been shipping in volume for BPL and In-Home applications, and still remains to be proven that competition can follow us."

DS2's technology is well known in the BPL industry for being one of the first proponents of programmable notching in powerline communications, as the best method for addressing potential interference to radio services. DS2's 200 Mbps BPL technology, available in silicon since 2003, already implements this dynamic notching functionality, which has been tested in the field, in several commercial BPL deployments, and demonstrated in several BPL industry trade shows.

"Other competing technologies have some notches, but they are fixed, including the most advanced designs from followers (on top of that they exhibit performance below 40% our speed). This means that they fall short for the demands of regulators and consumers everywhere from the FCC to the European Commission who require that frequency bands can be selectively notched out, even after the equipment has been deployed. Operators deploying non-DS2 based solutions risk having their equipment withdrawn from the field because once it is out there, there is nothing that can be done to prevent interfence with radio signals. With DS2, however, any issues can be resolved even when the equipment is in the field by remotely disabling problematic frequencies thus complying with today's or future regulatory requirements and automatically avoiding any radio signals in any part of the world". Mr Dominguez placed special emphasis on the radio friendliness of the system.

In February this year, DS2's 200 Mbps powerline technology has been chosen as the baseline technology for the European utilities developing PLC standards to accelerate the adoption of low cost, high performance broadband access PLC. As part of the selection process, an extensive set of tests were performed, including notching functionality benchmarks for avoidance of potential interferences to radio services. In addition, report from Ofcom, the British telecom regulator recognised the significant advance represented "The flexibility of the DS2 product, with its programmable spectrum mask and downstream notching capability, represents a significant step towards a more EMC friendly PLT solution."

Specifically, DS2 BPL system can implement notches in any frequency band, not only in radio amateur bands. This means that the system can be adapted to changing regulations in several countries. For example, FCC recently prohibited BPL Operators to use frequencies within defined "excluded bands". Only products based on DS2 technology can be adapted to this new regulation remotely from the Operator's Network Operation Centre, while products based on competing chips would need to replace the hardware in the field.

DS2 200 Mbps the technology which underlies the majority of commercial access PLC and IPTV/ADSL deployments worldwide and has been built into equipment manufactured by the leading US, European and Asian BPL manufacturers. It is used by XDSL/IPTV operators like Telefonica and electricity giants such as Consolidated Edison, Duke Energy, EdF, EdP, Iberdrola and Endesa, to drive their broadband over powerline offerings. As of September 2005, the estimated number of consumers and businesses that enjoy access to IPTV, internet and voice-over IP services is estimated at 500,000, with more than two million homes passed in deployments with more than 30 power utilities world-wide.