4
Wireless Communications
Important Notice
Due to the transmitting and receiving properties during wireless communications, the data can occasionally be lost or
delayed. This can be due to the variation in radio signal strength that results from changes in the characteristics of the radio
transmission path. Although the data loss is rare, the environment where you operate the device may adversely affect
communications.
Variations in radio signal strength are referred to as fading. Fading is caused by several different factors including signal
reflection, signal ionosphere, and signal interference from other radio channels.
Safety hazards
Do not operate device in an environment that may be susceptible to radio interference resulting in danger specifically;
Areas where prohibited by the law
Follow any special rules and regulations and obey all signs and notices. Always turn off the host device
and remove the device from the USB port when instructed to do so, or when you suspect that it may cause
interference or danger.
Where explosive atmospheres may be present
Do not operate your device in any area where a potentially explosive atmosphere may exist. Sparks in
such areas could cause an explosion or fire resulting in bodily injury or even death. Be aware and comply
with all signs and instructions.
Users are advised not to operate the device while at a refueling point or service station. Users
are reminded to observe restrictions on the use of radio equipment in fuel depots (fuel storage
and distribution areas), chemical plants or where blasting operations are in progress.
Areas with a potentially explosive atmosphere are often but not always clearly marked. Potential locations
can include gas stations, below deck on boats, chemical transfer or storage facilities, vehicles using
liquefied petroleum gas (such as propane or butane), areas where the air contains chemicals or particles,
such as grain, dust or metal powders, and any other area where you would normally be
advised to turn off your vehicle engine.
Near Medical and life support equipment
Do not operate your device in any area where medical equipment, life support equipment, or near any
equipment that may be susceptible to any form of radio interference. In such areas, the host