Global Navigation Satellite Systems Engineering, Policy, and Design
Trimble has introduced the postage stamp–sized Resolution SMT, a 12-channel parallel tracking, embeddable GPS receiver in a surface mount packaged designed to provide precise GPS or UTC time and synchronization for many static timing applications.
By Inside GNSS
OnPOZ offers the SubX 16-channel GPS box with built-in satellite-based augmentation system (SBAS — WAAS or EGNOS) capability providing two-meter (circular error probable) real-time positioning and sub-meter postprocessed accuracy (code and carrier phase). Measuring 4.7 x 2.6 x 1.6 inches (12.0 x 6.5 x 4.0 centimeters) and weighing 0.67 lb. (0.3 kilogram), the water resistant SubX operates with a 1-hertz update rate for up to 24 hours in low-power mode (GPS receiver and antenna) and 18 hours in high-power mode (GPS, antenna and Bluetooth) using a rechargeable lithium-ion 7.4-volt battery.
By Glen Gibbons
Hemisphere GPS offers the dual-frequency R220 GPS receiver, a 39-channel that offers real-time kinematic (RTK) operation with 12 channels of L1 C/A code, 12 channels of L1 P-code, and 12 channels of L2 P-code tracking. The other three channels can be used for tracking satellite-based augmentation systems including OmniSTAR’s commercial HP and XP differential correction services or three additional channels of L1 C/A-code tracking.
By Glen Gibbons
u-blox has released a new low-voltage GPS module — the NEO 5D. Operating at 1.8 volts, the module require 40 percent or more less power compared to its predecessors in the 50-channel u-blox 5 engine product line: 72 mw @ 1.8V in the “Eco” mode and 77 mW @ 1.8V in the “maximum performance” mode. The module comes in a 12x16x2.4-millimeter package and employs u-blox’s SuperSense acquisition and tracking technology with a reported reacquisition and tracking sensitivity down to –160 dBm. Cold-start acquisition sensitivity is -143 dBm with a time to first fix of 32 seconds.
By Glen Gibbons
Magellan has introduced its MB 500 OEM GNSS receiver board with GPS+GLONASS+SBAS dual-frequency, real-time kinematic (RTK) capability. Offering 75 channels, the receiver can track the following signals: GPS L1 C/A, L1/L2 P-code, L1/L2 full wavelength carrier; GLONASS L1 C/A, L2 P-code, L1/L2 full wavelength carrier; and satellite-based augmentation systems code & carrier (WAAS/EGNOS/MSAS).
By Glen Gibbons
L-3 Interstate Electronics Corporation (IEC), based in Anaheim, California, The miniaturized the TruTrak Evolution GPS receiver from L-3 Interstate Electronics is a single-board, L1/L2 24-channel secure GPS receiver, measuring 1.8 x 2.0 x 0.4 inches. It consists of a security module, radio frequency down converter, and I/O logic.
By Glen Gibbons
The Trimble BD960 GNSS system is a multi-channel, multi-frequency, OEM GNSS receiver, in a Eurocard form factor measuring 100 x 106.7 x 12.7 millimeters. The centimeter-level positioning technology is designed to ease product and system development by original equipment manufacturers. It includes 72 channels for GPS L1, L2C, and L5 code and carrier signal tracking and four additional channels for satellite-based WAAS/EGNOS/MSAS support and three levels of OmniSTAR L-band services.
By Glen Gibbons
Pendulum Instruments, an Orolia Group company, offers the GPS-12RG, a combined GPS and GLONASS controlled frequency standard. This portable (weight, 3.1 kilograms) reference clock is designed for laboratory and telecommunications applications and can trace its operation to both GPS and GLONASS satellites. An internal rubidium oscillator provides stability of a few parts in 10-12, also in hold-over operation in cases when satellite contact is lost, according to the company.
By Glen Gibbons
NovAtel Inc. offers its new EuroPak-15ab receiver, which can track the Galileo E1/L1, E5a, and E5b signals from the GIOVE-A and GIOVE-B test satellites as well as GPS and satellite-based augmentation system (SBAS) L1 and L5 signals. The receiver is purpose-designed for agencies and academic institutions performing testing and signal evaluation, as well as for commercial Galileo evaluation and demonstration projects. NovAtel developed the EuroPak-15ab receiver in cooperation with the Canadian Space Agency (CSA) as part of the Galileo Test Receiver (GTR) program.
By Glen Gibbons
NavSync Ltd. offers the TrineX CW27, a self-contained GPS receiver module based on the NemeriX NX3 assisted-GPS single chip receiver with the NemeriX Extended Ephemeris feature. The TrineX occupies 24 × 24 millimeters of printed circuit board space and connects directly to the host system through a UART using NMEA protocols. It incorporates an ARM7-based application processor. According to the company, the device has been specifically developed for mobile hardware platforms running off batteries, where power consumption and small size are crucial.
By Inside GNSS
The UC322 from Fastrax combines SiRF’s 20-channel GSC3LT single-chip GPS receiver with an on-board chip antenna in a package measuring 10.4x30x2.9 millimeters. According to the company, the UC322 has a tracking sensitivity of -159 dBm and power consumption of 90 mW and 3.3 volts. The antenna does not need a separate ground plane. Instead it utilizes the unit’s own printed circuit board (PCB) for gaining the best antenna signal. A new companion product, the IT321, is available without the integrated antennas.
By Glen Gibbons
Hemisphere GPS has released its Eclipse L1/L2 GPS OEM receiver module and evaluation kit. The 24-channel Eclipse technology delivers dual-frequency solutions (L1 (CA), L1 (P), L2 (P) with carrier phase signal tracking) with a 20 Hz maximum update rate. The unit incorporates Hemisphere GPS’s exclusive techniques for reducing code measurement noise and mitigating multipath signals.
By Inside GNSS
