Professional voting system supports 15,500 wireless keypads

摘要

The Ativa professional audience response and interactive voting system supports up to 15,500 uniquely identifiable wireless keypads over a range of up to 500-ft (about 150 meters). It can sweep around a venue, time synchronize, and individually poll every keypad of the thousands present in seconds from a USB memory stick-sized base station plugged into a PC USB port.