Beitian BT-4820 Full-Frequency L-Band RTK GNSS Antenna OEM, GPS/BDS/GLONASS/Galileo for Survey
Beitian BT-4820 Full-Frequency L-Band RTK GNSS Antenna OEM, GPS/BDS/GLONASS/Galileo for Survey
Beitian
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Overview
Beitian BT-4820 is a full-frequency, L-Band-capable RTK GNSS antenna designed for positioning applications such as autonomous driving, surveying/mapping, and precision agriculture. The series supports multiple satellite systems and offers configurable connector and cable options for OEM integration.
Key Features
- Multi-constellation GNSS reception for positioning applications.
- Full-frequency + L-Band support (BT-4820 working mode list includes L-Band).
- High-gain LNA specification: 35±2 dB (series spec shown for both models).
- Supports multiple antenna connector types and cable styles for customization (TNC, SMA, MCX, MMCX, IPEX, etc.).
- Operating temperature range: -40°C to +85°C.
Specifications
Model: BT-4820
| Working mode | GPS L1/L2/L5; BDS B1I/B2I/B3I/B1C/B2a/B2b; GLONASS L1/L2/L3; GALILEO E1/E5a/E5b/E6; SBAS L1/L5; QZSS L1/L2/L5/L6; IRNSS L5; L-Band |
| Gain | 35±2 dB |
| Noise figure | ≤2 dB |
| Output VSWR | ≤2.0 |
| In-band flatness | ±2 dB |
| Output impedance | 50Ω |
| Supply voltage | 3.3-12 V |
| Supply current | ≤45 mA |
| Connector type | MCX-JW |
| Size | Dia 120 x 23.2 mm |
| Weight | 180 g |
| Cable | RG178 |
| Cable length | 10 cm |
| Operating temperature | -40°C to +85°C |
| Storage temperature | -40°C to +85°C |
| Wet degree | 40% to 95% |
Model: BT-4020 (variant reference)
| Working mode | GPS L1/L2; GLONASS L1/L2; BDS B1/B2/B3; GALILEO E1/E5b |
| Gain | 35±2 dB |
| Noise figure | ≤2 dB |
| Output VSWR | ≤2.0 |
| In-band flatness | ±2 dB |
| Output impedance | 50Ω |
| Supply voltage | 3.3-12 V |
| Supply current | ≤45 mA |
| Connector type | MCX-JW |
| Size | Dia 120 x 16.7 mm |
| Weight | 196 g |
| Cable | RG178 |
| Cable length | 10 cm |
| Operating temperature | -40°C to +85°C |
| Storage temperature | -40°C to +85°C |
| Wet degree | 40% to 95% |
Connector & Cable Options (Customization Reference)
- Common connector types shown: TNC-J, TNC-K, SMA-J, SMA-JW, MCX-JW, MMCX-JW, IPEX.
- Common cable types shown: 50-3 line, 316 line, 174 line, 178 line, 1.13 line.
- Note: Cable length, connector, and wire options may require additional customization. For customization requests, contact https://rcdrone.top/ or email [email protected].
Notes on Model Replacement (As Provided)
BT-4020 / BT-4820 can replace: BA-4820, BA-4020, BAW-4820, BAW-4020, BMW-4820, BMW-4020, BXW-4820, BXW-4020, BT-4820, BT-4020.
Applications
- Autopilot systems
- Surveying and mapping
- Precision agriculture
Details
Choose the connector and cable style that fits your OEM build, with BT-4820 specifications listed alongside the BT-4020 variant for reference.
Customization support covers debugging requirements, sample-based builds, and concept-to-product antenna projects for integration workflows.
Full-constellation, full-frequency reception is paired with a high-gain LNA design to support stable RTK positioning in demanding environments.
Multiple connector families are available for clean routing and easy installation across different GNSS receiver and autopilot platforms.
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