Description CatM GNSS Unit is an international wireless communication and positioning unit based on the SIM7080G module solution. The CatM GNSS Unit supports CatM and NB-IoT dual-mode connectivity with GNSS global positioning, making it suitable for IoT projects that need cellular communication and location data in one compact device. The CatM GNSS Unit uses serial communication and AT command control, supports multiple communication protocols, and provides dual SMA external antenna interfaces for LTE and GNSS signals. It can be powered from DC 9 to 24V through the DC jack or from external 5V through the HY2.0-4P cable. Features CatM GNSS Unit integrates cellular communication and GNSS positioning in one unit. Built around the SIM7080G module solution for global CatM and NB-IoT frequency band coverage. Supports GPS, GLONASS, BeiDou, and Galileo positioning systems. UART communication interface with 3.3V TTL level and AT command control. Supported protocols include TCP, UDP, HTTP, HTTPS, TLS, DTLS, PING, LWM2M, COAP, MQTT, and more. Dual SMA antenna interfaces improve LTE and GNSS signal stability. Built-in MicroSIM card slot for cellular network access. Supports DC 9 to 24V input through the DC jack or external 5V through HY2.0-4P cable. Development support for Arduino and UIFlow. Four reserved mounting holes for flexible installation. Specifications Specification Parameter Module Model SIM7080G Supported CAT-M Bands B1/B2/B3/B4/B5/B8/B12/B13/B14/B18/B19/B20/B25/B26/B27/B28/B66/B85 Supported CAT-NB Bands B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B28/B66/B71/B85 Supported GNSS Types GPS/GLONASS/BeiDou/Galileo Cat-M Uplink/Downlink Uplink: 1119Kbps, Downlink: 589Kbps NB-IoT Uplink/Downlink Uplink: 150Kbps, Downlink: 136Kbps RF Power Class Class 5, typical 21dbm Standby Current DC 12V@13mA Communication Interface UART: baud 115200 8N1 Power Input DC 9 to 24V jack or external 5V through HY2.0-4P cable Product Size 61.6 x 40.0 x 14.8mm Product Weight 84.0g Package Size 189.0 x 55.0 x 26.0mm Gross Weight 97.3g Applications Remote control systems using CatM GNSS Unit connectivity. Remote monitoring devices where the CatM GNSS Unit provides cellular data transfer. Telemedicine equipment requiring network communication. Mobile logistics positioning with GNSS location data. Asset tracking and IoT terminals where the CatM GNSS Unit provides wide-area wireless communication. Product List 1 x Unit CatM GNSS 1 x 4G Adhesive Antenna 1 x GPS Antenna 1 x HY2.0-4P Grove Cable (20cm) Other Content Communication and Positioning The CatM GNSS Unit combines low-power cellular communication with satellite positioning. CatM and NB-IoT support can cover different data-rate and throughput requirements, while GNSS reception enables location-aware IoT workflows for projects built around the CatM GNSS Unit. Integration Details The CatM GNSS Unit is controlled through UART AT commands, so it can be integrated with host controllers that can exchange serial commands. Dual antenna connections help separate LTE and GNSS reception paths for improved signal stability. Resources CatM GNSS Unit product document CatM GNSS Unit Arduino examples SIM7080 series AT command manual SIM7080 series specification PDF SIM7080 GNSS application note CatM GNSS Unit schematic image CatM GNSS Unit model size image CatM GNSS Unit PDF document FAQ What cellular modes does CatM GNSS Unit support? The CatM GNSS Unit supports CatM and NB-IoT dual-mode connectivity. Which positioning systems are supported? The CatM GNSS Unit supports GPS, GLONASS, BeiDou, and Galileo positioning systems. How is CatM GNSS Unit controlled? It uses a UART communication interface and AT command control. What power inputs are available? The unit supports DC 9 to 24V input through the DC jack or external 5V through the HY2.0-4P cable. What antennas are included? The package includes one 4G adhesive antenna and one GPS antenna.
