Omni-8181-P15

LOCOSYS Technology Inc. is a global leader in the design and manufacturing of satellite positioning modules, delivering both hardware and software solutions. The company specializes in Global Navigation Satellite Systems (GNSS/RTK), wireless communication, embedded systems, industrial/automotive applications, and avionics, consistently providing high-performance and highly reliable solutions to customers worldwide.

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LOCOSYS

LOCOSYS Technology Inc. is Taiwan supplier and manufacturer in GPS / GNSS Market LOCOSYS has been offering our customers high quality GPS, GNSS, RTK MODULE, TRACKER, IOT, 4G, 5G, Timing, Drone, autonomous vehicle since 2006. With both advanced technology and 11 years experience, LOCOSYS always make sure to meet each customer's demand.

Omni-8181-P15

Omni-8181-P15

Omni-8181-P15
Omni-8181-P15

LOCOSYS Omni-8181-P15 Patch Antenna is a high-performance, low-profile, multi-constellation active GNSS ceramic patch antenna supporting GPS, BDS, GLONASS, Galileo, and QZSS satellite systems, covering L1 + L5 frequency bands. The antenna integrates a high-quality ceramic patch radiating element with a low-noise active amplification circuit, effectively enhancing reception sensitivity and overall positioning performance. Its low-profile flat structure provides an optimal balance of aesthetics, mechanical robustness, and installation flexibility, making it well suited for outdoor fixed installations, industrial equipment enclosures, as well as communication and timing systems. The antenna is equipped with a standard N-type (N-J / N plug) RF connector and RG316/U waterproof coaxial cable, enabling seamless compatibility with a wide range of GNSS receivers, communication devices, and time synchronization modules.

From an RF and mechanical design perspective, the LOCOSYS Omni-8181-P15 Patch Antenna features an IP67-rated waterproof and dustproof enclosure, providing complete protection against dust ingress and ensuring reliable operation under prolonged exposure to wind, sunlight, and rain (long-term submersion is not recommended). The antenna incorporates an internal low-noise amplifier (LNA) and a high-selectivity front-end filter, effectively suppressing noise and adjacent-band interference while significantly improving signal-to-noise ratio (SNR) and positioning stability. The antenna provides an active gain of 28 dB and integrates ESD and surge protection circuitry to mitigate the impact of electrostatic discharge and transient voltage events on the receiving system. The standard cable length is 3 meters, fully shielded with high-coverage braided isolation, and mechanically reinforced at the cable-to-connector junction to enhance resistance to pulling and rotational stress. For installation flexibility, the antenna base supports either 3M industrial-grade high-performance adhesive mounting or M12 plated nut mounting, while the enclosure adopts a low-profile circular design optimized for superior antenna radiation performance.

The LOCOSYS Omni-8181-P15 Patch Antenna is independently designed and manufactured by LOCOSYS Technology, leveraging decades of expertise in GNSS antenna engineering, RF circuit design, high-frequency electromagnetic simulation, and system integration. From the initial design stage, the product adheres to international industrial and telecommunications standards, encompassing antenna radiation pattern optimization, impedance matching, filter and amplifier architecture, as well as comprehensive interference immunity and environmental reliability validation. The manufacturing process implements a rigorous quality management and testing system, including incoming material inspection, in-process quality control, RF performance measurements, environmental and durability testing, and 100% final inspection prior to shipment to ensure consistent performance and long-term reliability. Backed by its robust R&D capabilities and stringent quality management system, the Omni-8181-P15 Patch Antenna delivers high-accuracy and highly reliable GNSS reception even in high-noise, electromagnetically complex, and harsh environmental conditions, making it an ideal solution for communication base stations, timing and synchronization systems, intelligent transportation, AMR/AGV/UAV/UGV platforms, energy monitoring equipment, vehicular systems, and autonomous positioning applications.

Patch Antenna Characteristics

CharacteristicsSpecifications
Frequency Range

1559-1605MHz

1176±12MHz

Polarization

RHCP

Zenith Gain>2.0dBi (In-band center frequency)
VSWR

<2.0

Impedancer

50 Ω


LNA

CharacteristicsSpecifications
Gain

28±2dB

VSWR

<2.0

Output impedence50 Ω
Noise Figure

<2.5dB

Supply Voltage

3.0-12.0V

Operating Current

<45mA


Environment

Relative Humidity

90%

Operating Temperature

-40~+85℃

Store Temperature-40~+85℃
Waterproof Grade

IP67

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