Graylogix Wiki Blog

  MAXGAIN MG100 USB GPS Receiver from Graylogix is a high-performance L1 GNSS positioning module with antenna built-in, which is developed on the base of the state-of-the-art manufacturing unit. It supports global civil navigation systems, including GPS, BDS, GLONASS, Galileo, and QZSS. Featured with SAW and LNA, it achieves high positioning accuracy and short TTFF, especially in a rough urban environment. It has an LED to indicate the 3D fix of the satellites. With a compact body and high performance, MAXGAIN MG100 is widely applied to tracking applications, like automotive, consumer, and industrial tracking, Live date and time. Etc. Features of Maxgain USB GPS Receiver Supports GPS, BDS, Galileo, GLONASS, and QZSS systems Built-in LNA & SAW for better sensitivity Supports A-GNSS Supports geo-fence function Ultra-low power consumption around 13 mA in tracking mode Supports antenna supervision. Specifications of USB GPS Receiver GNSS tracking channels: 72 channels GPS/QZSS: L1C...

  SIM A7670C 4G LTE TTL Modem is a Cat-1 Module which supports wireless communication modes of LTE-TDD/LTE-FDD subsequently. Basically It supports maximum 10Mbps downlink rate and 5Mbps uplink rate.  Generally AT instructions are used to communicate with the A7670C. The SIM A7670C 4G LTE TTL Modem Board is specifically designed keeping in mind the requirements of the user. It has various pinouts from the module, such as RING – used to detect incoming call, DTR – to use the 4G Module in ultra low power sleep mode, STATUS – to detect the status of 4G Module. NETLIGHT – in case developer wants to use external LED to indicate network status, RESET – developer can use this pin to connect with MCU and reset the module if required. It has onboard UART Logic Level Convertor and works on 5V TTL logic level as well as 3.3V TTL Logic level, By default its 5V TTL Logic level, in order to perform the board on 3.3V TTL Logic level please shift the 0E Resistor from 5V to 3.3V as depicted in ...

  Quectel L76 GPS receiver with Antenna is a concurrent receiver GNSS module in small formfactor with 33 tracking channels, 99 acquisition channels, and 210 PRN channels. The L76 can acquire and track any mix of 3 multiple satellite constellations, providing simultaneous GPS, GLONASS, BeiDou, Galileo and QZSS open service L1 reception capability. This increases the number of visible satellites and reduces time-to-first-fix, allowing accurate navigation in settings such as urban canyons. The L76 combines EASY™ (Embedded Assist System for self-generated orbit prediction) with LOCUS™ (internal logger) and AlwaysLocate™ to achieve excellent accuracy with low power consumption. EASY™ allows the module to calculate and predict orbits automatically using up to 3 days of ephemeris data stored in the RAM, so it can fix position quickly and with low power consumption, even when signal levels are lower. LOCUS™ allows the module to log position information to the internal flash memory at defau...