RIM 1802G, Руководство интегратора

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About the RIM 1902G and RIM 1802G radio modems
Integrator Guide 17
Powerful and efficient transmitter
When necessary, the RIM 1902G can supply a full 1 watt at 1900 MHz and 0.8 watts at 850 MHz. The
RIM 1802G can supply a full 1 watt at 1800 MHz and 2 watts at 900 MHz. The RIM 1902G and RIM
1802G quickly decrease the output power when it is close to a base station, because a stronger signal
is needed only when the radio modem is far from a base station. By transmitting a strong signal only
when it is necessary, the RIM 1902G and RIM 1802G conserve battery power and provide a balanced
link.
The RIM OEM Radio Modem for GSM/GPRS Wireless Networks provides reliable transmission
efficiency across the entire operating voltage range of 3.5 to 4.75 volts. As a result, batteries can be
used even when they are near depletion. The transmission efficiency also maximizes the radio
coverage area throughout the life of the battery.
Small size
Because of its single board design, the RIM OEM Radio Modem for GSM/GPRS Wireless Networks
is very thin and, at only 42.0-by-67.5 mm, is smaller than a business card. This small size enables the
radio modem to meet most applications’ tight space requirements. The radio modem’s single-board
design is more reliable than multiboard designs, particularly in high-vibration environments (such
as vehicles) or in devices that can be dropped (such as handheld devices).