Compact active external GNSS antenna
TDXL-BA720
For geodetic and marine surveying, precision agriculture and deformation-monitoring equipment. Match the selected signals and mechanical interface to your receiver and installation.
- LNA gain
- 34 ± 2 dB
- Connector
- TNC-K
- Weight
- ≤180 g
Engineering confirmation before ordering
- Specifications are supplier-declared, not independent test certificates. Confirm the current revision, connector, mounting drawing and receiver compatibility before ordering. Phase center error is not a guarantee of positioning accuracy; request a calibration report or ANTEX file if your project requires one.
- B2a is mentioned in the source, but its frequency falls outside the stated 1205–1278 / 1559–1615 MHz passbands. B2a support is not included in the listed signal selection until the supplier confirms it. GPS L5 and Galileo E5a are not claimed.
- No IP rating is specified in this source. Do not assume sealed outdoor suitability; confirm the installation and environmental requirements.
Technical specifications
| Listed signal selection | BDS B1I/B1C/B2b/B3I · GPS L1/L2 · GLONASS G1/G2 · Galileo E1/E5b |
|---|---|
| Operating frequency | 1205–1278 MHz · 1559–1615 MHz |
| Impedance | 50 Ω |
| Polarization | RHCP |
| Maximum antenna gain | ≥4.5 dBi |
| Axial ratio | ≤3 dB |
| Horizontal coverage | 360° |
| Phase center error (supplier specification) | ≤2 mm |
| LNA gain | 34 ± 2 dB |
| Noise figure | ≤2 dB |
| In-band flatness | ±2 dB |
| Operating voltage | 3–12 V DC |
| Current draw | ≤40 mA |
| Dual-frequency delay difference | ≤5 ns |
| Output VSWR | ≤2:1 |
| Operating temperature | −40°C to +80°C |
| Storage temperature | −45°C to +85°C |
| Humidity, non-condensing | 95% RH |
| Connector | TNC-K |
| Weight | ≤180 g |
| Dimensions (supplier drawing) | Ø100 ± 1 mm × 60.30 ± 1 mm |
Source: supplier specification: TDXL-BA720, pages 2–3. Revision not stated in the supplied PDF.
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