Hitachi GD8000 User Guide - Page 30
GPS option, Bluetooth option, Antennas - power supply
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GD8000 User Guide Wireless Communication EVDO Rev. A EVDO Revision A (1x Evolution-Data Optimized) is a wireless radio broadband data standard that offers download speeds up to 3.1 Mbps (500 to 800 Kbps typical). Revision A integrates faster data technology and improves latency. These enhancements allow features such a VoIP and video calling. EV-DO/1xEV-DO/CDMA Network EV-DO Rev 0 Evolution Data Only or Evolution Data Optimized (EV-DO) is a 3G wireless technology with average user download speeds up to 2.4 Mbps (400-700 kbps typical). When you spend a lot of time away from your desk, the faster speeds from EV-DO can lead to greater productivity. It's more than just fast email retrieval. Get fast and secure access to your information and applications with EV-DO. 1XRTT - Single Carrier (1x) Radio Transmission Technology 1xRTT is a pre-3G wireless technology based on the CDMA platform. It has the capability to provide ISDN like speeds that offer up to 144 Kbps (50-70 Kbps typical). 1xRTT is also referred to as CDMA2000. GPS (option) The Global Positioning System (GPS) is a worldwide radionavigation system formed from a constellation of satellites and their ground stations. GPS uses these satellites as reference points to calculate positions accurate within five meters. Bluetooth (option) Bluetooth is a short range, wireless technology. Bluetooth systems create a Wireless personal-area network (WPAN). When Bluetooth-capable devices come within range of one another, an electronic conversation automatically takes place to determine whether they have data to share or whether one needs to control the other. Then, the devices hop frequencies in unison so they stay in touch with one another and avoid interference with other devices. Antennas The GD8000 has several embedded antenna options to support wireless communications. They require no user action. CAUTION Use only the supplied or an approved antenna(s). Use of unauthorized antennas, modifications, or attachments may void your warranty and could impair call quality, damage the radio, or result in violation of FCC regulations. The GD8000 may contain the radio transmitters listed below. The following statements are relevant when using these radios: This device may contain a WLAN radio transmitter, a WPAN radio transmitter, and a WAN radio transmitter. Each internal radio may or may not have an individual FCC Identifier label. That FCC Identifier label is not applicable to this configuration. Only the external FCC ID label is applicable. Only the antenna with which an intentional radiator is authorized may be used with the intentional radiator. The WAN embedded antenna location is in the upper center edge of the display screen and is not to be modified. The WPAN embedded antenna location is near the lower left edge of the Keyboard and is not to be modified. The WLAN embedded dual antennas are located internally in the upper right and left edges of the display screen and are not to be modified. To comply with FCC RF exposure requirements when using the WAN radio transmitter, a minimum separation distance of 20 cm must be maintained between the upper center edge of the display screen antenna and all users/bystanders. When using the WLAN transmitter, a minimum separation distance of 20 cm must be maintained between the upper right and left edges of the display screen and all users/bystanders., The WAN transmitter, WLAN transmitter and WPAN transmitter should be turned off before carrying the Laptop PC in order to comply with FCC RF exposure requirements. Since each customer's radio configuration is unique, please read the radio help installed on your desktop and refer to the manufacturer documentation to setup and use your radio(s). Bluetooth devices send out weak signals of 1 milliwatt. Class II Bluetooth devices have a range of about ten meters while Class I devices have a range up to 100 meters. The GD8000 Bluetooth option is a Class I device with the greater range. Even with the low power, the walls in your house won't stop a Bluetooth signal. This makes the standard useful for controlling several devices in different rooms. However, obstructions such as walls do degrade the signal and reduce its range. General Dynamics Itronix | 72-0137-003
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