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· MPN: GPS-23814

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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...

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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.

ANN-MB1 Antenna Datasheet

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Supplier page — sparkfun.com

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Related Tutorials

Free guides on learn.littlebird.com.au

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