Introduction: Both internal and external, both stable and lightweight: The magnesium alloy case makes the A90 more rugged and reliable, and the intensive design makes the A90 easier and more convenient. The improvement in the internal structure of the A90 is even greater. The whole circuit of the A90 is docked with full sockets, and there is no wiring cable inside to prevent the quality problems caused by loose cables. The internal partition is CNC machined to enhance the internal heat dissipation, signal shielding and structural stability of the A90, making the A90 not only better but also more durable. Support star chain life and Chinese precision. Features: 1. Satellite channel upgrade Supports up to 555 channel multi-star systems: China Beidou BDS, EU Galileo Galileo, US GPS, Russian GLONASS, India IRNSS, Japan Qzss, and SBAS satellite augmentation systems, and supports multiple civilian bands for each satellite system. Allows you to work in a variety of complex terrain conditions, dense occlusion and harsh electromagnetic interference, providing accurate and reliable positioning solutions. Support satellite band: GPS: L1CA/L1C/L2C/L2P/L5 GLONASS: L1CA/L2C/L2P/L3/L5 BeiDou: B1/B2/B3 Galileo: E1/E5/AltBOC/E5a/E5b/E6 IRNSS5: L5 SBAS: L1/L5 QZSS: L1CA/L1C/ L2C/L5/L6 2, data link upgrade Built-in full Netcom 4G network module, support self-built network base station FOIFNET one-to-many operation, and support the special card private network CORS network of different communication service providers in different provinces, so that you can obtain more stable and reliable network signals in urban and rural areas. Built-in high-sensitivity transceiver integrated radio, you can receive clear and stable differential signals in harsh mountain conditions, and can easily set up base stations within 2-5 km working range, so you can use more peace of mind. At the same time, it supports a variety of international and domestic common protocols, which is convenient for joint operation with other RTK devices. Network module parameters: GSM: 900/1800MHz TD-SCDMA: B34/B39TDD LTE: B38/B39/B40/B41; CDMA 1x/EVDO: BC0WCDMA: B1FDD LTE: B1/B3/B8 Radio module parameters: power 0-2W typical working distance 2-5KM (depending on the environment) frequency 410-470MHz; communication protocol: PCC-EOT, TrimTalk 450S, TrimMark III, South, GeoTalk, GeoMark, etc. 3, more features: The internal hardware of the machine adopts ARM architecture and integrates with Linux operating system. Users can directly access the WEB control interface embedded in the control host through the mobile phone wifi, and can control the host to set the working mode, download measurement data, upgrade the host program, manage the host registration authority, etc. , to allow users to have a more convenient way to control the A90 when it is inconvenient. The host also supports the measurement data dual storage function, which can synchronize the backup data to the host memory to prevent accidental loss when the user collects data, and can set the cloud storage function to back up the measurement data in the server cloud, so that the unexpected situation is not available. 4, supporting the new Android software also brought a lot of surprise changes to the user: Support SHP, DXF, EXCEL, DAT, thinking, Daoheng and other data format export, better compatible with PC-side software, support more powerful graphics engine, support SHP, DXF, JPG, TIF, IMP and other vector data mapping And raster image compression processing into a map, 1G raster image processing time of 3 minutes and lossless compression to 40M or less, with layer order, visibility, feature style and other rich layer display management functions, faster, use More convenient. 5, sufficient power and memory: The 3400mAh×2 battery also guarantees the normal operation of the instrument in one day. When the battery is low, the battery on both sides can be replaced in turn to ensure the uninterrupted operation of the instrument. At the same time, the F58 handbook battery is completely interchangeable with the A90 handbook battery, which can also avoid the trouble of insufficient power. In order to meet the needs of data storage backup and static data storage, the host has 8G large-capacity memory onboard, and supports TF card to expand 32G memory, which can fully meet the needs of long-term measurement work. Technical Parameters: Product model: A90 Satellite system: 555/394/336 channels BDS, GPS, GLONASS, Gaolileo, SBAS, IRNSS, QZSS full constellation Static measurement plane accuracy: ±(2.5mm + 0.5ppm) RMS Static measurement elevation accuracy: ± (5mm + 0.5ppm) RMS RTK measurement plane accuracy: ±(8mm + 0.5ppm) RMS RTK measures elevation accuracy: ±(15mm + 0.5ppm) RMS SBAS positioning (typical): 0.5m Initialization time: <10s Initialization reliability: >99.99% Working temperature: -30 ° C ~ +60 ° C Storage temperature: -40°C～ +80°C Waterproof and dustproof: IP68 Drop: normal temperature against 2 meters drop Humidity: anti-condensation Built-in storage: Onboard 8G; TF card expansion, support ≥32G Differential Output: RTCM2.3, RTCM3.X, RTCM3.2, CMR, CMR+, RTCA Data Security: When RTK is measured, the measurement data is stored in three places. Bluetooth: Built-in, V2.0 Class2 WIFI: Directly connect to the handbook via wifi instead of Bluetooth connection Support web UI wireless management: host upgrade, data download, parameter setting, station operation, etc. Network communication: Domestic: Full Netcom 4G, EC20 module Communication protocol: PCC-EOT, TrimTalk 450S, TrimMark III, South, GeoTalk, GeoMark, Satel, HI-TARGET, etc.
Introduction: Both internal and external, both stable and lightweight: The magnesium alloy case makes the A90 more rugged and reliable, and the intensive design makes the A90 easier and more convenient. The improvement in the internal structure of the A90 is even greater. The whole circuit of the A90 is docked with full sockets, and there is no wiring cable inside to prevent the quality problems caused by loose cables. The internal partition is CNC machined to enhance the internal heat dissipation, signal shielding and structural stability of the A90, making the A90 not only better but also more durable. Support star chain life and Chinese precision.
