UM980 ultraLight GNSS Smart Antenna for precision and RTK positioning

UM980 ultraLight RTK GNSS Smart Antenna is a next-generation, ultra-lightweight RTK GNSS solution built around the powerful Unicore UM980 module, integrated with a high-precision RM3100 compass and a compact helical antenna. It is purpose-designed for weight-sensitive UAVs, robotics, and mobile applications where every gram matters.

With its advanced multi-band RF front-end, the UM980 ultraLight Smart Antenna is capable of simultaneously tracking all four major GNSS constellations — ensuring robust positioning and centimeter-level accuracy when combined with correction data.

Engineered for flexibility, it supports concurrent reception of GPS, GLONASS, Galileo, BeiDou, QZSS, and SBAS, delivering a high-performance navigation solution even in challenging environments. Thanks to its exceptional sensitivity, fast acquisition times, and built-in interference suppression, the UM980 ultraLight provides reliable, high-precision positioning where traditional receivers struggle.

Lightweight, powerful, and dependable — the UM980 ultraLight RTK GNSS Smart Antenna is the ideal choice for next-generation UAVs, autonomous systems, and precision applications that demand top-tier performance without compromise.

Device Features:

• Based on NebulasIV GNSS SoC with integrated RF, base band, and high precision algorithm
• Supports robust high-precision positioning via RTK, PPP, and Galileo HAS correction services.
• All-system multi-frequency RTK engine and advanced RTK technology
• Independent tracking of different frequencies and 60dB narrow band anti-jamming technology
• Low Noise Amplifier (LNA) integrated in antenna
• High Gain: 28 dB typ. from antenna
• Axial ratio: 3 dB max.
• Tight Phase Center Variation (PCV)
• Power supply: 5 VDC
• Integrated 3-axis digital compass sensor RM3100 for accurate heading and orientation

Physical Characteristics:

• Dimension: Ø50x41 mm
• Weight: 34 gr.
• IP Rating: IP55
• Operating Temperature: -10 °C ~ +60 °C
• Connector type: JST SH 6 pin, JST GH 6 pin
• Mounting Options: Waterproof 3M double-sided tape, Screw mount
• RoHS & Reach Compliant
• Fully assembled, tested, sealed, and ready for use

Kit included:

• Smart antenna – 1 piece
• Cable JST GH 1.25 6 pin to 6 pin 200mm – 1 piece
• Cable JST SH 1.0 6 pin to 6 pin 100 mm – 1 piece
• Waterproof 3M double-sided tape – 1 piece
• Screws 2.5x6 – 3 pieces

Performance Specifications:

• Channels: 1408 channels, based on NebulasIV

Frequency

• GPS L1C/A/L1C/L2P(Y)/L2C/L5
• BDS B1I/B2I/B3I/B1C/B2a/B2b
• GLONASS G1/G2/G3
• Galileo E1/E5a/E5b/E6
• QZSS L1C/A/L1C/L2C/L5/L6
• NavIC L5
• SBAS L1C/A/L1/L5
• IRNSS I5
• L-band

Single point positioning (RMS):

• Horizontal: 1.5 m
• Time Accuracy(RMS) - 20 ns
• Vertical: 2.5 m
• Velocity Accuracy (RMS) - 0.03 m/s

DGPS (RMS):

• Horizontal: 0.4 m
• Cold start < 12 s
• Vertcal: 0.8 m
• Initialization Time < 5 s (typical)

RTK (RMS):

• Horizontal: 0.8 cm + 1 ppm
• Initialization Reliability > 99.9%
• Vertical: 1.5cm + 1 ppm
• Data Update Rate 50 Hz* Positioning

Differential Data & Formats:

• Differential Data - RTCM V3.X
• Data Format - NMEA-0183, Unicore