Fastrax unveiled the UC430, a combination of a complete GPS receiver and an integrated chip antenna packed into a 9,6 x 14,0 x 1,95 mm module.
By utilising SiRFaware technology, including the adaptive micropower controller, the module autonomously activates itself periodically from standby, resulting in a reduction of time-to-first-fix (TTFF). SiRFaware is able to maintain hot-start readiness with minimal power consumption of 125 μA average current and <10 mW in TricklePower 1 Hz navigation mode to extend battery life.
The self-assisted positioning feature is based on client generated extended ephemeris (CGEE), allowing the UC430 to calculate predicted satellite positions for up to three days following the latest activation based on broadcast ephemeris data. The CGEE removes the need for expensive and time-consuming data communication required to obtain traditional A-GPS information. In addition, the module has future support and connectivity to optional external sensors for dead reckoning, enabling the detection of more accurate static position and movement when satellite signals are unavailable.
In handheld digital devices, antenna design and sensitivity must compensate for varying orientation. The circular radiation pattern of the module’s integrated chip antenna ensures signal acquisition, while the cold start acquisition sensitivity of
-147 dBm and tracking sensitivity of -163 dBm warrant high-performance navigation. The device also contains an active jammer remover, which tracks and removes up to eight interfering signals that would otherwise decrease navigation performance.
In addition to the integrated chip antenna, the UC430 supports optional connectivity for an external antenna signal; it supports both active and passive antennas.
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