The basis of the scheme is to lay down minimum standards for the technical performance of TV coaxial cable based on the specific requirements for satisfactory DTT reception. It is not intended to address general quality issues, such as standard of construction, durability etc., which can largely be assessed by visual inspection and from practical experience. This benchmarking scheme covers coaxial cables only. It does not cover the complete aerial installation, or installation practice.

Conformance to the minimum standards is determined by independent measurements against a technical performance specification. This has been compiled by an industry wide committee who will monitor the implementation of the scheme and agree any necessary changes to the detailed procedures, test methods, and specifications.

The scheme allows the measurements to be carried out by any test house that is able to demonstrate that it meets the required standards of measurement accuracy. The use of the 'mark' will be authorised for specific products by the CAI, once the 'pass' certificate and supporting documentation has been issued by the test house. Testing of random samples sold to installers or retailers will ensure ongoing conformance.

The Cable Benchmarking Scheme is a purely voluntary arrangement within the industry and the DTG/CAI have no intention of seeking any form of mandatory status at this time. It is however expected to be widely adopted and reference may be made to specific types of CAI/DTG benchmarked cable in manufacturers literature, purchasers' requirement specifications or supply contracts.

Benchmarked aerials should always be used in conjunction with good installation practice as laid down by the CAI Code of Practice and the recommendations in DTG R Book 2.

Download the Benchmarked Cable List Here