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Cards in prime position NovaTel has launched its new OEM7 family of GNSS positioning engines, saying they provide enhanced reliability, accuracy and availability along with more receiver options (writes Peter Donaldson). There are five receiver cards in the new family, including the OEM7600, which is 35 mm in diameter, 11 mm high, 20 g and consumes 0.9 W. All have 555 channels, use at least two constellations and multiple frequencies, and incorporate advanced interference awareness and mitigation algorithms. The interference toolkit detects sources of interference and jamming, mitigating them with proprietary filters. A spectrum analysis function identifies which GNSS frequency is experiencing interference and can detect interference from other components in a system. The OEM7 receivers can also pick up L-band TerraStar precise point positioning correction signals for centimetric accuracy, feeding the corrections directly to the receiver. This, the company says, is useful in circumstances in which setting up a real-time kinematic correction network is impractical. Along with the receiver, the new PwrPak7 enclosure houses 16 Gbytes of data storage plus wi-fi, serial, USB, CAN and Ethernet interfaces. Satellite navigation NovaTel’s new receiver cards use at least two constellations and multiple frequencies