Ensure highly accurate and dependable positioning for your navigation and timing applications with our dedicated 1575.42MHz GPS/GNSS Antenna. This robust external antenna is precisely tuned to the L1 frequency band of the Global Positioning System (GPS), offering a stable 3dBi gain to maximize signal acquisition. The assembly features a durable RG174 coaxial cable for reliable signal transmission and is terminated with a universally compatible SMA Male connector, making it the perfect solution for external mounting on vehicles, fixed installations, and portable equipment requiring stable satellite reception.
Precision Design for Navigation Systems
This antenna is specifically engineered to meet the demanding requirements of high-reliability GPS and GNSS receivers, prioritizing signal quality and robust construction for consistent performance in various environments.
Dedicated L1 Frequency Tuning
The antenna is centered at 1575.42 MHz, which is the fundamental L1 frequency utilized by the GPS constellation for standard positioning service (SPS). While primarily designed for GPS L1, its performance characteristics ensure excellent compatibility with the L1 signals from other Global Navigation Satellite Systems (GNSS), including GLNASS, Galileo, and BeiDou. This focused tuning maximizes the signal-to-noise ratio at the most critical navigation frequency, leading to faster Time-to-First-Fix (TTFF) and improved positioning accuracy. The narrow-band optimization helps reject out-of-band interference, which is increasingly important in crowded RF spectrum environments.
Stable 3dBi Gain for Enhanced Reception
Featuring a stable 3dBi peak gain, this antenna provides a significant boost to the incoming satellite signal strength without being overly directional. This enhanced gain is essential for:
Challenging Environments: Maintaining a strong satellite lock in areas where the view of the sky is partially obstructed, such as near tall buildings (urban canyons) or under moderate foliage.
Receiver Sensitivity: Improving the overall sensitivity of the connected GPS/GNSS module, allowing it to acquire and track weaker or more distant satellite signals, thereby increasing position availability.
Passive Reliability: As a passive antenna (no built-in Low-Noise Amplifier or LNA), the 3dBi gain is achieved through optimized antenna geometry, offering a simpler, lower-power solution suitable for applications where power consumption is a concern or where the receiver already provides the necessary amplification.
Durable RG174 Coaxial Cable
Signal transmission from the antenna element to the receiver is handled by the RG174 coaxial cable. The RG174 is a standard choice for external GPS antennae due to its excellent flexibility, affordability, and acceptable performance characteristics for short to medium cable runs at the 1.5 GHz frequency. Its small diameter allows for easy routing through tight spaces, such as vehicle dashboards or equipment enclosures, making installation clean and manageable while offering sufficient shielding against external electromagnetic interference. The cable jacket is typically weatherproof, ensuring the assembly remains functional in harsh outdoor conditions.
Universal SMA Male Connector
The assembly is terminated with an SMA Male connector. The SubMiniature Version A (SMA) connector is the most widely adopted standard for professional GNSS and RF equipment due to its reliable threaded coupling mechanism, which ensures a secure, consistent 50-ohm impedance connection. The SMA Male interface provides universal compatibility with the vast majority of commercial GPS/GNSS receivers, data loggers, and timing modules that feature an SMA Female port, simplifying integration and offering a highly reliable interface that resists accidental disconnection. The connector often includes a rubber gasket or weather boot for enhanced environmental protection.
Essential Application Scenarios
The reliability, focused tuning, and ease of installation of this antenna make it an indispensable component across a variety of critical positioning and timing applications.
Automotive and Fleet Tracking
For vehicle tracking systems (AVL), fleet management, and logistics monitoring, this antenna provides the stable location data required for continuous operation. The external mounting capability and robust build make it ideal for permanent installation on cars, trucks, heavy machinery, or delivery vans, ensuring reliable signal reception regardless of the vehicle's environment. Its discrete size also contributes to a clean, professional installation.
Timing and Network Synchronization
The highly stable 1575.42MHz signal is critical for network synchronization and precision timing applications utilized by data centers, telecommunications infrastructure , and industrial control systems. When integrated with a timing receiver or master clock, this antenna provides the clean, consistent satellite reference signal required to maintain nanosecond-level accuracy for system operations.
Portable Navigation and Mapping Systems
Used in conjunction with portable mapping systems, GIS data loggers, and handheld surveying equipment, the antenna ensures improved accuracy and satellite lock compared to smaller, internal antennae. The external placement allows the receiver to be positioned under difficult conditions while the antenna remains mounted with a clear view of the sky, maximizing data integrity in the field.
Fixed Assets and Remote Monitoring
For fixed remote monitoring stations, infrastructure control points, and environmental sensors that require location stamping or time synchronization, this external antenna offers the durability and signal strength necessary for continuous, unattended operation in exposed outdoor environments where reliability over years of service is a key requirement.
