SparkFun
BT-3710 GNSS L1/L2/L-Band Survey Antenna with 150mm U.FL Cable
· MPN: GPS-29691
This high-performance multi-band GNSS antenna is designed for applications that need high accuracy and continuous operation. It supports GPS, GLONASS, BeiDou...
This high-performance multi-band GNSS antenna is designed for applications that need high accuracy and continuous operation. It supports GPS, GLONASS, BeiDou and Galileo constellations across multiple frequency bands, plus L-band correction services.
Built to outperform standard patch antennas, it captures and amplifies satellite signals before feeding them to your GNSS module through an integrated 150 mm coaxial cable with a standard IPEX (U.FL) connector.
The BT-3710 is housed in a secure 119.9mm enclosure for dependable field deployment, with an operating temperature range suitable for harsh outdoor environments.
Features:
- Multi-Band & L-Band Support: Full compatibility with GPS L1/L2, GLONASS L1/L2, BeiDou B1/B2/B3, Galileo E1/E5b, and L-band signals ensures maximum satellite availability and support for real-time correction services like PPP and u-blox PointPerfect.
- High-Gain Signal Amplification: A high passive gain of 5.5 dBi is paired with an integrated 40 dB low-noise amplifier (LNA) to ensure a strong and reliable satellite lock in obstructed environments, such as urban canyons or under foliage.
- Survey-Grade Accuracy: Achieves a highly stable phase center with an error of just ±2mm and maintains a low noise figure (≤2 dB), making it ideal for applications requiring centimeter-level precision.
Specifications:
- Frequency range: 1164 – 1610 MHz
- Passive gain: 5.5 dBi
- LNA gain: 40 ± 2 dB
- Noise figure: ≤ 2 dB
- VSWR: ≤ 2.0
- Impedance: 50 Ω
- Cable: 150 mm, 1.13 mm diameter
- Connector: IPEX (U.FL)
- Dimensions: Ø119.9 mm × 16.2 mm
- Weight: 190 g
- Operating temperature: -40 °C to +85 °C
- Operating humidity: 40–95%
Suitable for professional GNSS, surveying, robotics and positioning builds where a compact embedded antenna and U.FL connection are required.
Jargon buster
Plain-language definitions for the technical terms used above.
- E1
- A Galileo satellite signal band used for standard positioning. Knowing which signal bands are supported helps you judge compatibility and expected performance of a GNSS receiver.
- Galileo
- Europe’s satellite navigation system. Galileo support can improve satellite availability and accuracy, especially when combined with GPS and other constellations.
- GLONASS
- Russia’s satellite navigation system. A receiver that can also use GLONASS has more satellites to choose from, which can improve positioning reliability when the sky view is partly blocked.
- GNSS
- GNSS stands for Global Navigation Satellite System, covering positioning systems such as GPS and similar satellite networks. It matters here because high-precision GNSS modules can output lots of serial position data that this product can send wirelessly to a computer or phone.
- GPS
- The US satellite navigation system used by GNSS receivers to calculate position and time. Support for GPS is important because it is widely available and often used together with other constellations for more reliable positioning.
- u.FL
- u.FL is a tiny snap-on antenna connector often used on compact wireless boards. A board with u.FL usually needs an external antenna, which matters if the product will be inside an enclosure or needs better antenna placement.
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