Leica GM30 Radio Receiver

At a glance

* Designed for high-accuracy, 24/7, monitoring applications.
* Future proof with 555 GNSS channels.
* Support for all available and future GNSS signals
* All-in-one GNSS monitoring receiver

High-end GNSS technology

Exceeding GNSS signal needs today and tomorrow by supplying 555 GNSS channels, the Leica GM30 monitoring receiver is future-proof, reliably delivering the highest quality results 24/7. Detect and react to potential problems quicker with the support of all available and future GNSS signals delivering timely and accurate information on the status of sensitive structures.

With innovative SmartTrack+ technology, interference is no longer a threat. Maintain continuous GNSS multi-frequency operation, even in challenging radio frequency environments. Gain insight into the frequency power spectrum as it is seen by the receiver, including all desired, as well as undesired, signals. Easily identify and mitigate unintentional or intentional interference sources.

Versatile and customisable

The Leica GM30 is ready to be customised to cover any monitoring scenario from long-term static to dynamic high-frequency monitoring. This receiver is easily combined with a variety of external devices, and the Leica GM30 seamlessly connects with Leica Spider and Leica GeoMoS. In addition, the on-board data logging provides direct connection with Leica CrossCheck.

Leica VADASE

Leica VADASE (Velocity and Displacement Autonomous Solution Engine) provides an in-depth look into fast movements using unique processing algorithms. In real time, accurate high-rate velocity and displacement information of various activities and structures are provided to engineers and researchers for a complete, precise and reliable monitoring solution. Leica VADASE delivers actionable information independent of any GNSS RTK correction service in real time. Displacement events are streamed out or recorded onboard a single stand-alone GNSS receiver, and the user can be notified by email. With this instant information, professionals receive a deeper understanding of how structural movements occur and can take necessary actions to mitigate damages and potentially save lives with:
- Fully-autonomous, stand-alone receiver – no GNSS RTK correction services needed
- Instant information on fast relative displacements up to 20 Hz delivered in real time
- Integration into early warning systems

Features:

Part of the powerful Leica Geomsystems Monitoring Solution

As backbones of all GNSS monitoring installations, receivers must continuously evolve to meet rapidly changing GNSS demands. Leica GM30 easily delivers high-end, continuous, uninterrupted positioning and deformation accuracy for a vast number of monitoring applications. Whether monitoring dams, landslides, suspension bridges or offshore oil and gas platforms, be assured you have the reliability you need to avoid potentially dangerous and costly occurrences from happening.

Always one step ahead, the Leica Geosystems GNSS Monitoring Solution has proven reliable and future-proof. By combining a wide range of high-end equipment seamlessly with innovative software, services and support tools, professionals feel confident with Leica Geosystems Monitoring Solution.

Versatile and Customisable

- Multiple upgrade options to fit specific needs of any monitoring projects
- For both dynamic high-frequency or long-term static monitoring
- Also available as L1 only receiver- Combined with external devices (meteo, inclination sensors)

Easy to Operate, Easy to Install

- User-friendly web interface
- Integrated Leica VADASE for fast movement detection
- Site Monitor for RTK position calculation
- Onboard data logging and FTP push

Specifications:

GNSS TECHNOLOGY

- Leica Smart Track+: Very low noise GNSS carrier phase measurements (<0.5 mm rms). Signal acquisition < 30 s1. Industry leading Pulse Aperture Correlator (PAC) multipath mitigation technology for superior quality measurements. Advanced radio frequency power spectrum analysis, automatic interference detection with notification and interference mitigation
- GNSS signals2: GPS (L1C/A, L1C, L2P(Y), L2C, L5)3; GLONASS (L1, L2P, L2C, L3)3Galileo (E1, E5a, E5b, AltBOC, E6); BeiDou (B1l, B1C, B2I, B2a, B2b, B3I)4;QZSS (L1C/A, L1C, L2C, L5)3; NavIC L5; SBAS3 (WAAS, EGNOS, GAGAN, MSAS);Available as GPS + GLONASS L1 only receiver.

MEASUREMENT PERFORMANCE AND ACCURACY

- Code differential: Hz: 0.25 m + 1 ppm / V: 0.5 m + 1 ppm
- Site Monitor:
* RTK positioning modes: Reference Station (smoothed), Monitoring (instantaneous), Network RTK (instantaneous)
* Single baseline (<30 km):  Hz: 6 mm +1 ppm V: 10 mm +1 ppm, Hz: 8 mm +1 ppm V: 15 mm +1 ppm, Hz: 8 mm +1 ppm V: 15 mm +1 ppm
* Network RTK: Hz: 6 mm +1 ppm V: 10 mm +1 ppm, Hz: 8 mm +1 ppm V: 15 mm +1 ppm, Hz: 8 mm +1 ppm V: 15 mm +1 ppm
* Time for initialisation (typical): 10s, 10s, 4s
- VADASE (Velocity and displacement engine)
* Velocity accuracy: Hz: 0.003 m/s, V: 0.005 m/s
* Typical velocity derived displacement sensitivity: Hz: 1 cm/s, V: 2 cm/s

PORTS AND CONNECTORS, COMMUNICATIONS

- Ports
* PWR: Lemo-1 female, 5 pin
* Serial P1: Lemo-1 female, 8 pin
* GNSS antenna: TNC female
* P3 slot-in antenna: TNC female
* Oscillator: MMCX female, 24QMA-50 2-3/133, 5/10 MHz
* Ethernet: RJ45 ruggedised, 10/100 Mbit
* USB client: Type Mini B
- Slot-in communication interface: Exchangeable radio/GSM/GPRS/UMTS devices supported. Automatic gateway routing provides backup of internet access for continuity of communications.

TECHNICAL AND ENVIRONMENTAL

- Power supply: Nominal 24 V DC, range 10.5 – 28 V DC
- Battery: External. Can serve as primary power source or as UPS backup.
- Power consumption: 3.5 W typical, 24 V at 145 mA
- Dimension / weight (with rubber bumpers): 220x200x94 mm / 1.67 kg
- Temperature: Operating: -40 to 65 °C, Storage: -40 to 80 °C
- Humidity: Up to 100% condensing. Compliance with ISO9022-13-06, ISO9022-12-04 and MIL-STD-810H 507.6-I
- Vibration: Withstands strong vibration during operation. ISO9022-36-08 and MIL-STD-810H 514.8 E-1 Cat.24
- Drop: Withstands 1 m drop onto hard surfaces.Proof against water, sand and dust: IP68 (IEC 60529) and MIL-STD-810H 506.6-I/ 510.7-I / 512.6-I. Dust tight. Protected against water jets. Waterproof tested up to 1.4 m / 2 h submersion

GENERAL

- User interface:
* Web interface for full receiver control and status information.
* ON/OFF Button. 1x Function button. 6x LED for power, memory, logging, RT out, RT in, position
- Data logging:
* Internal removable SD card up to 32GB. 12 parallel logging sessions with automatic clean-up and VADASE event-based file protection. Data rates up to 50 Hz.
* RINEX 2.11/3.xx/4.xx, Hatanaka and Leica MDB formats including Zip compression.
- Data streaming: Up to 20 parallel data streams with multiple connections. Data rates up to 50 Hz.Supports Leica, Leica 4G, CMR, CMR+, RTCM v2.1/2.2/2.3/3, BINEX, NMEA 0183 v4and proprietary formats via TCP/IP, Ntrip and serial.
- RefWorx Web and FTP services:
* Full control and configuration of the receiver over a web browser through Ethernet, mobile internet, serial or USB. Integrated watchdog for maximum quality and uptime. Backup and restore feature. Detailed event log and onboard messaging service.Ntrip server (source), Ntrip client and Ntrip caster functionality with unlimited number of mount points.Secure access using HTTPS, SSL/TLS certificates, access management and port blocking.SFTP/FTP server and client (push), Email notification, SNMP support.