GPS Antenna Ground Plate

Want to improve your GPS antenna multipath convergence time performance to near survey-grade GNSS levels? Just using this simple steel plate effectively improves simple patch antenna performance to near professional level antenna setups.

The steel disc provides a ground plane for a low cost patch antenna (such as the u-blox ANN-MB-00) that when coupled with the u-blox NEO-M8P or ZED-F9x receiver allows for centimeter-level positioning. This plate is not needed with larger L1/L2 antennas that have a plane incorporated in their design.

The ⅛” thick steel plate has been tapped to fit onto the standard ¼-20 UNC camera mounting screw. While it is not the cleanest piece of steel and weighs in at a hefty 0.4211 lbs, it does provide a solid base to allow a magnetic mounted antenna to sit flat on the ground plane while mounted to a tripod.

  • Diameter -- 4 Inches
  • Thickness -- 1/8"
  • Weight -- 0.4211 lbs
  • Center Thread -- 1/4-20 UNC Thread
  • Finish -- Industrial

GPS Antenna Ground Plate Product Help and Resources

How to Build a DIY GNSS Reference Station

October 15, 2020

Learn how to affix a GNSS antenna, use PPP to get its ECEF coordinates and then broadcast your own RTCM data over the internet and cellular using NTRIP to increase rover reception to 10km!

Setting up a Rover Base RTK System

October 14, 2020

Getting GNSS RTCM correction data from a base to a rover is easy with a serial telemetry radio! We'll show you how to get your high precision RTK GNSS system setup and running.

GPS-RTK Hookup Guide

September 13, 2018

Find out where you are! Use this easy hook-up guide to get up and running with the SparkFun high precision GPS-RTK NEO-M8P-2 breakout board.

GPS-RTK2 Hookup Guide

January 14, 2019

Get precision down to the diameter of a dime with the new ZED-F9P from u-blox.


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • j.tilghman / about 5 years ago / 1

    Can this be used with normal NON-RTK GPS, and does it improve the performance ?

  • jack2838 / about 6 years ago / 1

    wonder if this can be used as a heatsink? Its a big mass of metal with a moderately high heat capacity.

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