User's Manual

Ubisense – Ultra-Wideband Location System – Modular Ubitag V2.0

(1) The UWB transmitter equipment conforming to the present document shall not be:

- installed at a fixed outdoor location;

- installed or used in flying models, aircraft and other forms of aviation;

- installed or used in a road or rail vehicle.

(2) To minimize interference to other users of the radio spectrum, in particular outdoor radio

stations, the equipment shall transmit only when it is sending information to a receiver or

attempting to acquire or maintain association. The device shall cease transmission within

ten seconds unless it receives an acknowledgement that its transmission is being

received. An acknowledgement of transmission shall continue to be received by the UWB

device at least every ten seconds, or it shall cease transmitting. Equipment covered by

the present document shall include a receiver mechanism capable of receiving the

reception acknowledgement from an associated receiver.

NOTE: As an example, the receiver mechanism might be capable of operating at

frequency bands given in CEPT/ERC/REC 70-03, annex 1 and tested according to EN

300 220 or EN 300 440.

If a device ceases UWB transmissions due to lack of a reception acknowledgement, it

shall wait for at least twelve seconds before reattempting to send information to a

receiver or to acquire or maintain association with a receiver, unless it first receives an

indication from an external source that its UWB transmissions are likely to be detected. In

this latter case, the device may reattempt to send information to a receiver or to acquire

or maintain association with a receiver immediately.