Overview
The Beitian BT-T009 GNSS antenna is a quadrifilar helical, full-frequency antenna designed for compact RTK GNSS installations. It features small size and light weight, and is intended for use with a variety of receivers in UAV platforms, handheld terminal equipment, and small RTK devices.
Key Features
- Full-band GNSS support: GPS, BDS, GLONASS, GALILEO
- Right-hand circular polarization (RHCP)
- 360° horizontal coverage angle
- Integrated LNA with wide operating voltage range
- SMA-J connector with RG316 cable
Specifications
Antenna Specifications
| Frequency Range | GPS L1/L2/L5; BDS B1/B2/B3; GLONASS G1/G2/G3; GALILEO E1/E6/E5b |
| Gain (dBi) | 2 |
| Antenna AR (dB) | ≤3 |
| Horizontal coverage angle | 360° |
| VSWR | ≤2 |
| Polarization | Right-hand circular polarization |
| Port Impedance (Ohm) | 50 |
| Phase center error (mm) | ±2 |
Electrical Specifications
| LNA Gain (dB) | 32±2 |
| Noise figure (dB) | ≤2 |
| Operating voltage (V) | 3.3-12.0 |
| Operating current (mA) | ≤50 |
| Output VSWR | ≤2 |
| In-band flatness (dB) | ±2 |
| Differential propagation delay (ns) | ≤5 |
Structural Characteristics
| Connector type | SMA-J |
| Antenna size (mm) | Phi38*49.1 |
| Cable | RG316 |
| Cable length | 60 cm (600±10 mm) |
| Antenna weight (g) | ≤22 (excluding line length) |
| Mounting / outline dimensions (mm) | Phi40.00±0.1; 4-Phi3.30; 38.00 x 38.00; Phi33.0 |
Working Environment
| Operating temperature (C) | -40 to +85 |
| Storage temperature (C) | -55 to +85 |
Applications
- UAV / agricultural drone RTK GNSS positioning
- Handheld terminal equipment
- Small RTK equipment and receiver integration
For product selection and integration support, contact [email protected] or visit https://rcdrone.top/.
Details

Built for compact RTK GNSS installs on UAVs and small receivers, the BT-T009 keeps weight low while maintaining stable 360° coverage.

Full-band support across GPS, BDS, GLONASS, and Galileo helps improve multi-constellation RTK performance in challenging environments.

An integrated LNA with wide input voltage range (3.3–12 V) is suited to common UAV and handheld GNSS power setups.


SMA-J connectivity with a 60 cm RG316 lead simplifies routing inside drone frames and small RTK enclosures.

The outline drawing provides the flange hole pattern and key dimensions for quick mechanical integration.
Related Collections
