SparkFun
GNSS L1/L5 Multi-Band High Precision Antenna - 5m (SMA)
· MPN: GPS-23814
The u-blox ANN-MB1 is a multi-band active GNSS antenna supporting L1, L5, E5a, B2a, and NavIC frequency bands. Designed for high-precision positioning applic...
The u-blox ANN-MB1 is a multi-band active GNSS antenna supporting L1, L5, E5a, B2a, and NavIC frequency bands. Designed for high-precision positioning applications, it pairs directly with the u-blox F9 platform (NEO-F9P, ZED-F9P, ZED-F9T) and other multi-band GNSS receivers.
The antenna features a high-performance RHCP dual-resonance, dual-feed patch element with a built-in high-gain LNA and SAW pre-filtering. It comes with a 5-metre cable terminated with an SMA connector.
Key Features
- Multi-Band GNSS – L1 (1559–1606 MHz) and L5/E5a/B2a/NavIC (1164–1188 MHz)
- RHCP Polarisation – Right-hand circular polarisation for optimal satellite reception
- Built-In LNA – High-gain low-noise amplifier with SAW pre-filter
- 5-Metre Cable – SMA connector for easy integration
- u-blox F9 Compatible – Optimised for NEO-F9P, ZED-F9P, and ZED-F9T modules
Specifications
- Frequency Bands – L1: 1559–1606 MHz · L5/E5a/B2a/NavIC: 1164–1188 MHz
- Peak Gain (12 cm ground plane) – L1: 3.8 dBic · L5: 1.3 dBic
- Axial Ratio (Zenith) – L1: 3.3 dB typical · L5: 3.4 dB typical
- Efficiency – L1: 55% typical · L5: 40% typical
- VSWR – Max 2:1
- Impedance – 50Ω
- Polarisation – RHCP
- Cable Length – 5 m
- Connector – SMA
- Dimensions – 60 × 82 × 22.5 mm
- Weight – 164 g (including cable)
Ideal For
- RTK and high-precision GNSS positioning
- Surveying and mapping equipment
- Autonomous vehicle and drone navigation
- u-blox F9 platform evaluation and integration
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- Active GNSS antenna
- An active GNSS antenna has a built-in amplifier that needs power from the board. It can improve satellite signal reception, but you need to use an antenna that matches the board’s powered antenna connection.
- Axial
- Axial components have one lead coming out of each end, so they lie flat or span holes on a circuit board or breadboard. This matters when checking whether the resistor will physically fit your prototyping or through-board assembly method.
- B2a
- A BeiDou satellite signal used by newer dual-band GNSS receivers. Support for B2a can improve accuracy and reliability when combined with other GNSS bands.
- E5a
- A Galileo satellite signal band used for higher-performance positioning services. Support for E5a can help dual-band GNSS receivers improve accuracy and reduce errors from atmospheric delay.
- 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.
- ground plane
- A ground plane is a large area of copper on a circuit board connected to ground. It helps provide a stable return path for signals and is especially important for reducing noise in high-speed connections.
- L5
- A modern GNSS signal band used by several satellite systems for more accurate and robust positioning. Dual-band receivers that include L5 can often perform better than single-band receivers, especially for RTK and areas with reflected signals.
- RTK
- Real-Time Kinematic positioning is a GNSS technique that uses correction data from a base station to greatly improve location accuracy. It matters if you need centimetre-level positioning for robotics, mapping, surveying, or tracking rather than ordinary metre-level GPS accuracy.
- SMA
- A threaded coaxial connector commonly used for antennas. It matters because you need antennas with matching SMA connectors, or suitable adapters, for the LTE and GNSS antenna ports.
- ZED-F9P
- A u-blox GNSS receiver module designed for high-precision positioning, including RTK rover and base-station use. The exact module matters because it determines the supported satellite bands, update rates, correction formats and achievable accuracy.
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ANN-MB1 Antenna Datasheet
Datasheet · 808.7 KB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 716.4 KB · Click any page to view full size
Related Tutorials
Free guides on learn.littlebird.com.au