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GPS Chipset
Trimble is an authorized supplier of GPS Security Devices including the STEL-9300/EC PPS-SM and Trimble Gondola Multi-Channel Auxiliary Output Chip (AOC).  The STEL-9300/EC(Ceramic package) is a direct replacement for the STEL-9300/EP (Plastic package) in accordance with the latest US National Security Administration requirements.  These devices have been granted the NAVSTAR GPS JPO Security Approval.

  • 20248-02
    Trimble Gondola Multi-Channel Auxiliary Output Chip (AOC) for installation in Trimble receivers only
  • 20248-03
    Trimble Gondola Multi-Channel Auxiliary Output Chip (AOC) for installation in Trimble receivers only
  • 49654-01
    STel 9300/EC Precise Positioning Service Security Module (PPS-SM)

6 channel PPS receiver designs use one each PPS-SM and one each AOC. 12 channel PPS receiver designs use one each PPS-SM and two each AOC chips.

STMicroelectronics announced this morning that their are ramping up production of their Teseo GPS chipsets which will be used in future Garmin auto and handheld devices. Don’t know STMicroelectronics? Their chipset can currently be found in several devices including the DeLorme PN-20 which has been noted by myself and several others to have outstanding reception. While it will likely be a different chipset than that used in the DeLorme product, I’ve been very pleased with the performance of devices which rely on the STMicroelectronics chip, so this should be a good move for Garmin.

“We are proud to announce that our state-of-the-art GPS technology has been selected for Garmin’s new range of portable and handheld devices,” said Domenico Rossi, General Manager of ST’s Car Radio and Multimedia Division. “ST is one of the few players in this market that can offer high-performance and cost-effective GPS solutions, based on robust silicon technology, experience in the automotive market, and know-how developed in collaboration with leading navigation manufacturers.”

These chipsets are WAAS as well as EGNOS enabled. As more companies start competing in the GPS chipset market, perhaps fewer people will email me asking where they can buy “Surf” brand GPS devices. No word on exactly which devices it will come on, nor how soon we will see the Teseo Chipset on Garmin devices.

Bluetooth/GPS chipset

Courtesy of Wireless Net DesignLine
(03/24/2005 3:17 H EST)

Greensboro, N.C. — The RF8900 chipset marries a Bluetooth radio chip with a two-chip GPS solution. This chipset runs from a 5-V supply and a less than 100-mV power consumption figure. On the GPS front, the chipset sports a -155-dBm tracking sensitivity, -145-dBm unaided acquisition sensitivity, and less than 5-m position accuracy. On the Bluetooth front, the chipset offers a -80-dBm sensitivity and better than 10-m range. The Bluetooth and GPS components interface through a UART.

Product Description:

The new ATT Bluetooth GPS Receiver is a high performance GPS receiver based on new third generation Sony CXD2951 GPS chipset. The built-in antenna is capable of acquiring satellite signals even in challenging situations such as under foliage or between tall buildings. The integrated reset button can refresh stored memory without using an utility. It takes advantage of the Bluetooth wireless technology to offer hassle free installation on a Bluetooth enabled PDA, laptop and even smart phone. The compact, light weight design makes it a perfect travel companion.


  • Compact and sleek design
  • Based on Sony CXD2951 GPS chip set
  • Low power consumption: 90mA @ 3.3V (average)
  • High-capacity rechargeable Li-Ion battery for 12 hours of use
  • 12 Channels with position accuracy of 5 meters
  • Integrated patch antenna
  • Three LEDs indicate Bluetooth, GPS and battery status
  • On/Off slider switch
  • Reset GPS button
  • Slip-resistant pad

    Product Specification:
  • Receiver Frequency: 1575.42 MHz (L1 band) C/A code
  • Antenna Type: Built-in Active Antenna

    GPS Receiver
  • Technology: Sony CXD2951 GPS chipset
  • Satellite Measure Used: 12-channel parallel automatic selection
  • Supports NMEA-0183 (V3.01)
  • Tracking Sensitivity: -152 dBm
  • Operating Temperature: -20?XC to 80?XC
  • Battery Life: 12 hours

    Time to First Fix (TTFF)
  • Hot Start: 2 second typical
  • Warm Start: 33 seconds typical
  • Cold Start: 40 seconds typical

  • Work with any Bluetooth enabled device with Serial Port Profile (SPP)
  • Bluetooth V1.1 certified with a Class 2 Bluetooth radio

    Physical Characteristics
  • Dimension: 72 x 41 x 20mm
  • Weight: 62g

    Package Includes:
    BT GPS x 1

    Car Charger x 1

    User Manual CD x 1


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GPS News
Deep foliage, nor canyons phase the rugged eTrex Legend HCx. Its high-sensitivity GPS receiver GPS Tracker GPS Antenna GPS Logger holds a GPS signal in the toughest environments. Similar to the Legend Cx, this handheld navigator also has a bright color screen, microSD™ card slot and automatic routing for wherever adventure takes you.

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