What operating frequency is used by Trolleyponder?
Trolleyponder is a base technology and protocol that can operate at most frequencies in the radio spectrum. However particular benefits with regard to performance and pricing occur if it is designed to be used in the 200MHz to 1600MHz spectrum. The reason is that at these frequencies the technology is now available to produce the transponder as a single chip with a simple antenna. The technology is currently in high volume production for 869Mhz (EU/GSM countries) and 902-930MHz (US/Canada).