Miniaturised Anti-Multipath Antenna
PRECISE AN2
Applicable Frequency Bands
GPS L1/L2，BDS B1/B2/B3, Galileo E5
This antenna is a full-band measurement antenna covering GPS L1/L2, GLONASS L1/L2, BDS B1/B2/B3, Galileo E5.
It meets the needs of multi-system compatibility of measurement equipment and extremely high precision micro-deformation measurement.
It is mainly used in some occasions where there is a very high requirement for measurement accuracy and the surrounding environment has a multipath influence,
such as seismic prediction, high-precision differential reference stations and other demanding applications.
Precision Redefined, Reliability Ensured
Accurate Alignment, Minimal Error
Multi-feedpoint design and fully symmetrical structure ensure the phase center aligns with the geometric center, reducing measurement error.
Advanced Structure, Multipath Suppression
Special structural design achieves excellent multipath suppression, high phase center stability, and repeatable performance.
High Cross-Polarization, Strong Signal Resistance
Exceptional cross-polarization ratio offers robust resistance to multipath interference.
Pre-Filter Amplification, Enhanced Reliability
The low noise amplifier adopts a pre-filtering scheme, filtering signals before amplification to suppress out-of-band interference, preventing amplifier saturation and improving system reliability.
Dual Protection, Stable Operation
Built-in lightning protection circuit safeguards the amplifier, ensuring reliable performance in harsh outdoor environments.
Wide Voltage Range, Continuous Functionality
Integrated voltage regulation circuit enables stable operation across a wide input voltage range.
Seamless Sealing, Durable Design
Unique waterproof and dustproof design achieves IP67 rating, fully sealing core components for reliable long-term outdoor use.
Detail Specification
Electrical Specifications
| Frequency Range (MHz) | GPS L1 & GLONASS L1 & BDS B1: 1557MHz~1612MHz GPS L2 & GLONASS L2 & BDS B2 & BDS B3: 1164MHz~1278MHz |
| Polarization | Right-hand circular polarization |
| Gain(dBi) | elevation90°≥6.0 elevation10°≥-2 elevation30°≥0 |
| Axial Ratio (dB) | ≤3dB(elevation≥40°) ≤6dB(10°≤elevation<40°) |
| Cross poar Ratio (dB) | ±60°≥25 |
| Phase Center Error (mm) | <2 |
| LNA Gain (dB) | 40±2 |
| V.S.W.R | <2.0:1 |
| Noise Figre (dB) | <2.0 |
| DC Voltage (V) | 3.3~12 |
| Current (mA) | <65 |
| Impedance (Ω) | 50 |
Structural Characteristics
| Dimension(mm) | Φ180×180 |
| Connector | TNC-K |
| Weight(Kg) | <2.5 |
Environmental Requirements
| Relative Humidity | 95% |
| Operating Temperature (°C) | -40°C ~ +85°C |
| Store Temperature (°C) | -55°C ~ +85°C |
GNSS Reference Receiver
PRECISE C
PRECISE C is a lightweight split GNSS receiver designed for the safety monitoring industry, featuring miniaturisation, low power consumption, low cost, high update rate, Gigabit network port, high satellite search quality, etc. Used with a small 3D choke antenna, it can be used as a reference and monitoring station in harsh monitoring scenarios, and is widely used in the fields of bridge monitoring, dams in reservoirs, and other precision structures monitoring.
Reference Station Antenna
PRECISE AN4
An4 is a 4-system full-band 3D choke antenna covering GPS, GLONASS, BDS, and GALILEO, which meets the current demand for high-precision and multi-system compatibility of measurement equipment. It can be widely used in geodetic mapping, oceanographic surveying, waterway surveying, dredging surveying, seismic monitoring, bridge deformation monitoring, landslide monitoring, terminal container operation and other high-precision occasions.
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