Security Informations for the Operation of GSM Modems.


Important for the efficient and safe operation of your GSM modem read this information before use!

Your GSM modem is one of the most exciting and innovative electronic products ever developed. With it you can stay in contact with your office, your home, emergency services, and others, whenever service is provided.


Your modem utilizes the GSM standard for cellular technology. GSM is a newer radio frequency (RF) technology than the current FM technology that has been used for radio communications for decades. The GSM standard has been established for use in the Europaen community and elsewhere.

Your modem is actually a low power radio transmitter and receiver. It sends out and receives radio frequency energy. When you use your modem, the cellular system handling your calls controls both the radio frequency and the power level of you cellular modem.

Exposure to RF energy

There has been some public concerns about possible health effects of using GSM modem. Although research on health effects from RF energy has focused for many years on the current RF technology, scientists have begun research regarding newer technologies, such as GSM. After existing research had been reviewed, and after compliance to all applicable safety standards had been tested, it had been concluded that the product is fit for use.

If you are concerned about exposure to RF energy there are things you can do to minimize exposure. Obviously, limiting the duration of your calls will reduce your exposure to RF energy. In addition, you can reduce RF exposure by operating your cellular modem efficiently by following the bellow guidelines.

Efficient modem operation

For your modem to operate at the lowest power level, consistent with satisfactory call quality:

If your modem has an extendible antenna, extend it fully. Some models allow you to place a call with the antenna retracted. However your modem operates more efficiently with the antenna fully extended.

Do not hold the antenna when the modem is "IN USE". Holding the antenna affects call quality and may cause the modem to operate at a higher power level than needed.

Antenna care and replacement

Do not use the modem with a damaged antenna. If a damaged antenna comes in contact with the skin, a minor burn may result. Replace a damaged antenna immediately. Consult your manual to see if you may change the antenna yourself. If so, use only a manufacturer approved antenna. Otherwise, have your antenna repaired by a qualified technician. Use only the supplied or approved antenna. Unauthorized antennas, modifications or attachments could damage the modem and may contravene local RF emission regulations or invalidate type approval.


Check the laws and regulations on the use of cellular devices in the area where you drive. Always obey them. Also, when using your modem while driving, please give full attention to driving, pull off the road and park before making or answering a call if driving conditions so require.

Electronic devices

Most electronic equipment, for example in hospitals and motor vehicles is shielded from RF energy. However RF energy may affect some malfunctioning or improperly shielded electronic equipment.

Vehicle electronic equipment

Check your vehicle manufacturer's representative to determine if any on board electronic equipment is adequately shielded from RF energy.

Medical electronic equipment

Consult the manufacturer of any personal medical devices (such as pacemakers, hearing aids, etc…) to determine if they are adequately shielded from RF energy.

Turn your modem OFF in health care facilities when any regulations posted in the area instruct you to do so. Hospitals or health care facilities may be using RF monitoring equipment.


Turn your modem off before boarding any aircraft. Use it on the ground only with crew permission. Do not use it in the air. To prevent possible interference with aircraft systems, Federal Aviation Administration FAA regulations require you to have permission from a crew member to use your modem while the plane is on the ground. To prevent interference with cellular systems, local RF regulations prohibit using your modem whilst airborne.


Do not allow children to play with your modem. It is not a toy. Children could hurt themselves or other (by poking themselves or other in the eye with the antenna, for example). Children could damage the modem, or make calls that increase your modem bills.

Blasting areas

To avoid interfering with blasting operations, turn your modem off when in a "blasting area" or in areas posted: "turn off two-way radio". Construction crew often uses remote control RF devices to set off explosives.

Potentially explosive atmospheres

Turn your modem off when in any area with a potentially explosive atmosphere. It is rare, but your modem or its accessories could generate sparks. Sparks in such areas could cause an explosion or fire resulting in bodily injury or even death.

Areas with a potentially explosive atmosphere are often, bur not always clearly marked. They include fuelling areas such as petrol stations; below decks on boats; fuel or chemical transfer or storage facilities; and areas where the air contains chemicals or particles, such as grain, dust, or metal powders.

Do not transport or store flammable gas, liquid, or explosives, in the compartment of your vehicle, which contains your modem or accessories. Before using your modem in a vehicle powered by liquefied petroleum gas (such as propane or butane) ensure that the vehicle complies with the relevant fire and safety regulations of the country in which the vehicle is to be used.

Safety standards

This cellular modem complies with all applicable RF safety standards.

This cellular modem meets the standards and recommendations for the protection of public exposure to RF electromagnetic energy established by governmental bodies and other qualified organizations, such as the following:

Directives of the European Community, Directorate General V in Matters of Radio Frequency Electromagnetic Energy.

[Homepage] - Copyright (C) 1999-2002 by BonusData AG, Last update: 18.03.2002