ER-SR-680 High Precision Storage Type Receiver
Introduction
ER-SR-680 High Precision storage receiver is a new design that supports BD, GPS and GLONASS system eight frequency high precision reference station receiver type products. The receiver-based embedded Linux operating system uses the multi-frequency high-performance SOC chip NebulasTM system with Ericco’s completely independent intellectual property rights.
The product supports secondary development, the built-in storage can hold continuous observation data for one month, the built-in 10000mah intelligent lithium battery, has friendly human-computer interaction, Bluetooth, WiFi, 3G WCDMA data modules. It can also easily realize the access operation of PC or PDA to the host ER-SR-680. It has strong anti-interference ability and high stability, and can meet the needs of unattended operation of base stations. Therefore, it is widely used in surveying and mapping, meteorology, earthquake, displacement monitoring, high-precision positioning applications such as scientific research.
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 dustproof
Specifications
| Performance Index | |
| Passageway | Based on 384 channel Nebulas chip |
| Signal | BDS B1/B2/B3+GPSL1/L2/L5+GLONASSL1/L2 |
| Single point positioning (RMS) | Plane: 1.5m, Altitude3.0mm |
| Static measurement (RMS) | Plane: 2.5mm + 1ppm Altitude: 5mm + 1ppm |
| RTK (RMS) Plane | 1cm + 1ppm |
| Altitude | 1.5cm + 1ppm |
| Observation accuracy (RMS) Pseudo-range | 10cm |
| Carrier phase | 1mm |
| Cold start | 50s |
| Recapture | 1s |
| Initialization time | 10s (type) initialization reliability greater than 99.9% |
| Differential data format | RTCM v2.3x/3.0/3.2 CMR |
| Location data format | NMEA-0183, UNICORE, BINEX |
| Data update rate | The highest 20Hz |
| The built-in storage | 16G board nor flash chip |
| The precision of time (RMS) | 20ns |
| The speed accuracy (RMS) | 0.03m/s |
| Control interface | WEB, 256*64 OLED 4*LED, 7* |
| Network protocol | TCP/IP, NTRIP, HTTP, FTP |
| Communication interface | |
| Function interface | 2*RS-232 serial port (1 DB9, 1 LEMO) |
| 1*RJ45 net export 10/100M | |
| 1*1PPS | |
| 1*Mini USB, support OTG | |
| Wireless WiFi 802.11g, Bluetooth 2.0 | |
| 3G (WCD) | |
| 1*SIM card | |
| The built-in battery | 12 hours of continuous work |
| Input voltage | 9~18V DC |
| Power waste | 4.8W (typical) |
| Power interface | 1 LEMO |
| RF antenna interface | TNC (F), 50Ω impedance |
| RF signal level | -80dBm~-105dBm |
| The antenna of LNA power supply | 4.75~5.10V, 0~100mA |
| The external clock frequency | 10MHz |
| External clock input | SMA, 50Ω |
| Clock signal level | 0dBm~10dBm |
| Physical characteristics | |
| Size | 265mm×194mm×77mm |
| Humidity | 95% No condensation |
| Working temperature: | -40℃～+65℃ |
| Storage temperature: | -40℃～+85℃ |
| Electrical indicators | |
| Input voltage | 9~18V DC |
| Can accept RF input levels | -80dBm~-105dBm |
| LNA feed | 4.75~5.10v, 100mA |
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