GPS Antennas (16 products)

Want an optimal solution for enhanced GPS communication? Experience it with our extensive collection of GPS antennas at Johnny Appleseed GPS. 

Whether you're navigating remote landscapes or require reliable signal strength in challenging environments, our selection has you covered. 

From specialised products designed for the Garmin Montana series, which support both GPS/GNSS navigation and Inreach satellite communications, to a variety of accessories like the Garmin GPS antenna replacement, we provide everything you need for the best communication experience.

Explore Our Collection of GPS Antennas

Ensure crystal-clear signal reception for your GPS with our diverse selection of antennas and accessories at Johnny Appleseed. Our range includes everything you need to enhance connectivity and performance no matter where you are in Australia. 

Benefits of Using a Garmin GPS Antenna

A dedicated GPS antenna amplifies the signal reception, significantly improving the accuracy of location tracking and navigation. This is particularly beneficial in areas where GPS signals might be weak or obstructed, such as urban canyons or dense forests.


To make the most out of your GPS antenna for cars, an antenna can be mounted on the exterior to capture the best possible signal while the GPS unit itself is kept inside, away from direct exposure to the elements.

Reduced Signal Interference  

High-quality GPS antennas are designed to minimise noise and interference from other electronic devices or obstacles. This gives you a clearer signal and more reliable GPS performance, ensuring that you receive the most accurate and consistent data possible.

Greater Flexibility in Device Placement  

With the use of an external GPS antenna, you have more flexibility in positioning your GPS device. This means you can place the device in a location that is most convenient for you, without worrying about compromising signal quality. 

What to Consider When Purchasing a GPS Antenna

When purchasing a GPS antenna, there are several important factors to consider to ensure that you choose the right product for your needs. Here are some points to keep in mind:


Ensure that the antenna you're considering is compatible with your GPS device. Different antennas may use varying types of connectors or may be designed for specific GPS models or brands. Check the specifications on each product page of both your device and the antenna to guarantee a match if you're not buying them together.

Mounting Options  

Consider how and where you will mount your GPS antenna. Some antennas come with magnetic bases for easy attachment to vehicles, while others may require more permanent installation.  

Signal Gain and Sensitivity  

Look for antennas with high gain and sensitivity. These characteristics determine how well the antenna can pick up GPS signals, especially in areas where signal strength is weak. A higher gain antenna can significantly improve the accuracy and reliability of your GPS device.

Environmental Resistance 

If you plan to use your GPS antenna outdoors or in harsh conditions, consider its resistance to environmental factors such as water, dust, and extreme temperatures. An antenna designed to withstand these conditions will ensure consistent performance and longevity, regardless of where you use it.  

If you can’t find your choice of GPS antenna here, feel free to get in touch with our team for more information on special orders.

FAQs About GPS Antennas

A GPS antenna is a device designed to receive signals from GPS satellites orbiting the Earth, enabling it to determine precise geographical locations. These antennas work by capturing satellite signals, which are then processed by a GPS receiver to calculate the device's exact position, speed, and time.

The effectiveness of a GPS antenna depends on its ability to maintain a clear line of sight to multiple satellites, enhancing signal strength and accuracy. This is crucial for various applications, from navigation and mapping to tracking and timing, providing users with reliable data for making informed decisions.

Installing a GPS antenna in your car significantly enhances the navigation system's accuracy and reliability. It ensures that your vehicle's GPS system receives stronger and clearer signals from satellites, even in areas where reception might be compromised, whether you're driving through the desert or in dense bush. This improved signal reception allows for precise location tracking, quicker route calculations, and more accurate turn-by-turn directions.

  • Poor Signal Reception: One of the most apparent signs is consistent poor signal reception or a significant drop in signal strength. This issue may show up as loss of GPS connectivity, especially in areas where you previously had strong reception.


  • Inaccurate Location Data: If your GPS device starts providing incorrect location information, such as wrong positions or erratic movements when the vehicle is stationary, it might be due to a faulty antenna. This inaccuracy can lead to navigation errors and inefficiencies.


  • Extended Time to Acquire Satellites: A healthy GPS antenna typically acquires satellite signals within a few seconds to a minute after starting. If it takes longer than usual to connect to satellites, or if the device consistently fails to establish a connection, the antenna may be compromised.

At Johnny Appleseed, our selection of GPS antennas is designed to cater to a broad spectrum of navigation and communication needs, ensuring optimal performance across various applications. Here's a brief overview of the types of antennas we offer:


VHF Antennas:

These antennas are specifically designed for VHF (Very High Frequency) radio communications, commonly used in marine environments and for two-way radio communications in remote areas. VHF antennas are crucial for maintaining clear communication over longer distances, particularly on the water, where direct line-of-sight communication is essential.


External Antennas:

Our external antennas are designed to improve GPS signal reception in environments where internal device antennas might struggle, such as in heavily built-up areas or dense forests. These antennas are versatile and can be mounted on vehicles, boats, or buildings to ensure a clear signal is received, enhancing the accuracy and reliability of GPS navigation and tracking systems.


MCX Active Antennas:

MCX Active Antennas come with a Micro Coaxial (MCX) connector and feature an integrated low noise amplifier to boost signal reception. These antennas are particularly useful for devices where space is at a premium but where high-quality signal reception is still required. The active component helps to ensure that even weak signals are amplified, providing reliable GPS data for navigation and tracking.