High-precision Storage Type Receiver

 ER-680 BD high-precision storage type receiverER-680 new design support BD, GPS and GLONASS system eight frequency high precision reference station receiver type products, the embedded Linux operating system based on the receiver uses our company has completely independent intellectual property rights system of multi frequency high performance SOC chip a NebulasTM. It supports the development of secondary; built-in storage can accommodate a month of continuous observation data, the 10000mah smart lithium battery, with friendly human-computer interaction, Bluetooth, WiFi, 3G WCDMA data module. Also it can easily realize PC or PDA access operation to the host ER-680, strong anti-interference ability, high stability, meet the needs of base station unattended operation. It is widely applied in surveying and mapping, meteorology, earthquake, displacement monitoring, scientific research and other high precision positioning applications.Product features:●  Support GPS L1/L2/L5 and compass B1/B2/B3, GLONASS L1/L2● The precision of pseudo range and carrier phase observation is 1mm and 10cm.● 16G onboard memory chip●  Support HTTP, FTP, TCP/IP, NTRIP network communication protocol●  Have WiFi, Bluetooth and 3G wireless communication technology●  LED indicator and dot matrix OLED control interface●  IP67 waterproof and dustproofPerformance IndexPassageway:Based on 384 channel Nebulas chipSignal:BDS B1/B2/B3+GPSL1/L2/L5+GLONASSL1/L2Single point positioning(RMS):Plane: 1.5m, Altitude3.0mmStatic measurement（RMS）:Plane: 2.5mm + 1ppm Altitude: 5mm + 1ppmRTK (RMS) Plane:1cm + 1ppmAltitude:1.5cm + 1ppmObservation accuracy（RMS）  Pseudo range:10cmCarrier phase:1mmCold start:50sRecapture:1sInitialization time:10s(type) Initialization reliability greater than 99.9%Differential data formatRTCM v2.3x/3.0/3.2 CMRLocation data formatNMEA-0183, UNICORE, BINEXData update rateThe highest 20HzThe built-in storage16G board Nor flash chipThe precision of time(RMS)20nsThe speed accuracy(RMS)0.03m/sControl interfaceWEB, 256*64 OLED  4*LED,7*Network protocolTCP/IP, NTRIP,HTTP,FTPCommunication interfaceFunction interface2*RS-232 serial port（1 DB9, 1 LEMO）1*RJ45 Net export 10/100M1*1PPS1*Mini USB, support OTGWireless WiFi 802.11g, Bluetooth 2.03G（ WCD）1*SIM cardThe built-in battery12 hours of continuous workInput voltage9 ～ 18V DCPower waste4.8W（typical）Power interface1 LEMORF antenna interfaceTNC（F）,50Ω impedanceRF signal level-80dBm ～ -105dBmThe antenna of LNA power supply4.75 ～ 5.10V,0 ～ 100mAThe external clock frequency10MHzExternal clock inputSMA,50ΩClock signal level0dBm ～ 10dBmPhysical characteristicsSize265mm×194mm×77mmHumidity95% No condensation Working temperature:-40℃～+65℃Storage temperature :-40℃～+85℃Electrical indicatorsInput voltage9 ～ 18V DCCan accept RF input levels-80dBm~-105dBmLNA feed4.75~5.10v,100mA