Hemisphere GNSS A25 Antenna
Ruggedized Design for Land and Marine Applications
Hemisphere GNSS A25 Antenna is engineered for millimeter-level accuracy across GPS, GLONASS, BeiDou, Galileo, SBAS, and L-Band signals. Its robust design, featuring an aluminum base with Lexan™ plastic cap, ensures durability in harsh land and marine environments. With superior multipath mitigation and stable phase center, A25 excels in surveys, RTK positioning, and machine control, offering reliable performance even near buildings and foliage.
A25 Antenna Technical Specifications
GNSS Sensor | |
Signals Received | GPS L1, GLONASS G1, BeiDou B1, Galileo E1 |
GNSS Frequency | 1.525 to 1.615 GHz |
LNA Gain | 30 dBn |
LNA Noise | 2.0 dB, typical |
Power | |
Input Voltage | 3.3 to 12 VDC |
Input Current | 12 mA, typical |
Mechanical | |
Enclosure | Aluminum base with Lexan™ plastic cap |
Dimensions | 4.7 H x 15.2 D (cm) |
Weight | 0.4 kg |
Mount | 5/8 inch female thread |
RF Connector | TNC (straight |
What Is the A25 Antenna Used For?
Typical applications of the A25 Antenna include:
RTK and high-precision positioning for autonomous machines
UAV, drone and robotics navigation
Automotive testing, telematics and fleet tracking
Marine navigation and heading systems
Surveying, mapping and precision agriculture
Frequently Asked Questions
What is the A25 Antenna?
Hemisphere GNSS A25 Antenna is engineered for millimeter-level accuracy across GPS, GLONASS, BeiDou, Galileo, SBAS, and L-Band signals. Its robust design, featuring an aluminum base with Lexan™ plastic cap, ensures durability in harsh land and marine environments.
Which GNSS signals does the A25 Antenna support?
Supported constellations and frequency bands are listed in the specifications table above. Matching the antenna to your receiver’s supported signals is the key selection criterion — contact Leo Drive if you need help pairing the A25 Antenna with your GNSS receiver.
Where is the A25 Antenna available?
The A25 Antenna is available through Leo Drive in the following region: Turkey. For other regions, please contact Leo Drive.
How can I get the datasheet and technical documents for the A25 Antenna?
The datasheet, user manual and other technical documents for the A25 Antenna are available on the manufacturer’s website. You can also contact Leo Drive for documentation and integration support.
Explore More at Leo Drive
The A25 Antenna is part of the GNSS Antennas range at Leo Drive. Browse all autonomous vehicle sensors and components, or talk to our engineering team about integration in your project.

