Independent filter manufacturer and consultancy. Produces custom designed microwave and RF filters in the 500 MHz to 20 GHz range, including cavity, combline, interdigital and waveguide. Product details and datasheets.

Manufactures transmitter towers, masts and broadcast antenna systems for radio and television communications. Includes product specifications and data sheets, company news, events and employment opportunities.

Sound equipment and transmission services.

Sales and service of radio modems and telemetry, speech, and data equipment.

TV aerials manufacturer, specialising in UHF and digital terrestrial, plus DAB, FM radio and brackets. Includes antenna specifications, illustrations and graphs.

Manufacturer of portable radio and infrared wireless industrial remote controls. Product information, client roster and employment details.

Sales and rental of radio and wireless communications equipment.

Commercial and domestic satellite television and aerial installations. Also an online shop selling television systems hardware, including aerials, receivers and boosters.

Specialists in the sales of new and used broadcast video equipment, also equipment hiring / rental: services, catalogue and contact details.

Supplier of digital set-top boxes for Freeview. Product description, support and company news.

Acts as representatives for RF and microwave component manufacturing companies. Market information, manufacturer and product index.

Sony broadcast equipment distributor. New and used product catalogue, spare parts quote form and ordering.

Manufacturer and supplier of FM radio transmitter kits. Includes kit details, pictures and price list.

Supplies ETI monitoring and analysis software for DAB and DMB networks. Product information and glossary.

Supplier of auto scan mini personal radios and Restricted Service Licence broadcast and transmission equipment and services.

Developer of software-defined radio products for the digital broadcast and digital wireless communications market. Features media center, career opportunities and investor information.

Specialises in providing wiring services to the broadcast industry. Company profile and service portfolio.

Microwave mast installation, project management and quality assurance.

Manufacturer of digital radio receivers on a single chip, integrating baseband, audio and sound processing. Technology and product overview, news and company information.

Supplies broadcast systems installations plus engineering and installation teams to worldwide communications industries. Contact details and client list.

Suppliers of 2-way radio systems, CB's, paging, and Tetra digital. Offers maintenance services.

Suppliers of two way radios including walkie talkies, vehicle and motorcycle radios, and taxi communications. Includes product and company information.

[Rotherham] Installation and repair of domestic TV and radio aerials, satellite dishes and distribution systems. Includes service information, articles, stories, antenna photographs and rogues' gallery.