The city-owned radio system, run by Bell, costs taxpayers $55 million over 10 years and more than an another $10 million in equipment costs. The system was supposed to be up and fully running in ...

The site is also home to an amateur radio repeater system, and when a ham operator visited on a summer day, he found the temperature in the building was a whopping 120 degrees! See Fig. 1. Fig. 1: Not ...

We need a system to provide cell phone and emergency radio signal inside a 3 story 300,000 foot building which has poor or nonexistent service as-is. Service is fine outside of the building.

An amateur radio repeater used to be a complex assemblage of equipment that would easily fill a 19″ rack. There would be a receiver and a separate transmitter, usually repurposed from commerc… ...

The Space Data system is relatively simple: it includes a standard weather balloon, a 6-pound electronics package that costs a total of $10,000, and a ground station that costs about $50,000.

CEBU, Philippines —The Cebu City Fire Station is asking the city government to procure and install a digital-analog repeater system to improve its communication in responding to fire alarms ...

On Saturday Jan. 28, the Calvert Amateur Radio Association with the cooperation of the Radio Amateur Civil Emergency Service installed a new radio repeater system.

These repeaters can amplify a walkie-talkie signal so it can be picked up anywhere in Hong Kong. Amateur radio buffs already monitor these repeater frequencies on virtually a 24-hour basis.