User manual EMTAC CRUX II BTGPS GPS RECEIVER

[. . . ] CRUX II / BTGPSTM GPS Receiver User Guide EMTAC Copyright © EMTAC Technology Corp. All rights reserved. Reproduction, transfer, distribution or storage of part or all of the contents in this document in any form without the prior written permission of EMTAC is prohibited. The Bluetooth trademarks are owned by Bluetooth SIG, Inc. USA and licensed to EMTAC Technology Corp. [. . . ] The general features are Best mobile GPS receiver for consumer and corporate GPS receiver with Bluetooth transceiver built-in Provides fully interoperability with Bluetooth integrated mobile devices Ultra-low power consumption with Li-ion rechargeable battery built-in Long operation time: 8 hours under continuous mode LED lights indicate GPS status, Bluetooth connection and battery condition Embedded high sensitivity GPS active antenna and Bluetooth antenna External GPS active antenna(optional) for in vehicle and indoors use Compatible with all GPS map running on various hardware platforms Navigating freely without wire connection to host mobile devices-- true wire-less In the following sections, each portion details of BTGPS are described, see Figure 2 and 3. Portion details: Antenna Façade Power Switch External Antenna Port LED indicators Power Jack External Active Antenna (optional) 15 D A C D B A: Antenna Facade B: Power Switch C: External Antenna Port D: LED Indicators E: Power Jack E Figure 2 16 Antennae Facade Your BTGPS integrated with a high sensitive 1. 5GHz GPS antenna and 2. 4GHz Bluetooth antenna internally, which can offer good satellite signal reception for position fix as well as data communication between BTGPS and your Bluetooth host terminal, respectively. The antenna facade area is top surface of the BTGPS, as indicated Figure 2 and 3. Keep this surface clean and clear view to the sky while operating GTGPS. Do not let this frontage surface area covered fully or partially by any object especially contains metal and/or electromagnetic wave absorption materials such as screwdriver, pen, watch, floppy diskette, CD and metal wires, thin metal foil like aluminum foil and metal-coated plastic bag, water or liquid, and carbon paper. While operation, sometimes even in non-operation state. Antennae Facade Area External Antenna Port (MCX type) Figure 3 Power Switch The Power Switch is indicated as "B" in Figure 2. Symbol: Power-on position of the Power Switch. Symbol: Power-off position of the Power Switch. 17 External Antenna Port Your BTGPS is equipped with a RF connector port (MCX type) for connecting with external active antenna(optional accessory) when operating under certain environment situation, such as inside a vehicle and where satellite signals are blocked or obstructed. The external antenna port is indicated as "C" in Figure 2. Make sure using the external antenna(optional accessory) supplied by EMTAC. Use of other active antenna will severely degrade positioning performance or even damage the receiver. Please read basic guidelines before using the external active antenna accessory. LED Indicators In Figure 2, three LED lights indicate the operation status of Bluetooth(BLUE), GPS(GREEN) and Battery(YELLOW/RED) of the BTGPS. Symbol: Blue LED Light indicates Bluetooth pair/connect status Flashing every 1 second: BTGPS just power-on and waiting for pair/connection. Flashing every 2 seconds: BTGPS is connected and paired with the host. Symbol: Constant on: Flashing: Symbol: Green LED Light indicates GPS status When BTGPS just power on, attempting to fix a position. Yellow/Red LED Light indicates Battery status Battery low. Battery fully charged Red light constant on: Yellow light constant on: No light (off): Power Jack When the Red LED light is constant on, you need to charge the Li-ion battery inside the BTGPS by plugging the charger's plug into the power jack which indicated as "E" in Figure 2. Make sure using the charger supplied with the BTGPS. DO NOT USE OTHER CHARGER to charge the BTGPS. 18 External active antenna (optional) The external active antenna is an optional accessory. Just connecting the external active antenna to the external antenna port described in previous section "External Antenna Port". The active antenna is embedded magnet in the bottom for easy mounting on metal surface, be caution not put near to materials are sensitive to magnetic field, such as magnetic storage media like floppy diskette. Figure 4 is the reference photo of the optional external active antenna. Make sure using the external antenna supplied by EMTAC. [. . . ] standards committee that defines data message structure, contents, and protocols to allow the GPS receiver to communicate with other pieces of electronic equipment aboard ships. Selective Availability (SA) Selective Availability is a process whereby the U. S. Department of Defense dithers the satellite clock and/or broadcasts erroneous orbital ephemeris data to create a pseudorange error to prevent adversaries from using the extremely accurate GPS positioning data. SPREAD SPECTRUM The received GPS signal is wide bandwidth and low power. [. . . ]