Best GPS Antenna

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Do you regularly experience inaccurate GPS readings? Instead of replacing the entire unit, perhaps installing an additional antenna will do. Now, the market offers a vast selection to choose from, but how do you know which one is the best GPS antenna?

Choosing a good GPS antenna can be difficult because you need to deal with some technical features. With enough research and peer reviews though, you can find the right device that will significantly improve your GPS signal according to your unit and vehicle.

GPS Signal and The Use of Antennas

Global Positioning System or GPS is owned and managed by the U.S. government. It became available to the consumer market back in the 1980s. One common reason why the satellite signal experiences delay is the presence of huge structures. Tall trees, buildings, and windshields can obstruct the signal.

An additional GPS antenna can significantly improve the accuracy and reliability of your GPS signal. Make sure that you buy the current model because they are made with a newer, built-in chip, which works much better than the older ones. This antenna can cost anywhere between 10 and 20 dollars depending on its capabilities and features.

Now, if you are unfamiliar with GPS navigation devices, then choosing a good antenna would be tough too. To help you out, here are the three best GPS antennas that have great compatibility and provide real-time location information.

Best GPS Antennas: Our Top Three Picks

Although they have different features, the GPS antennas below perfectly work with many GPS units and provide accurate reception that helps enhance location and other journey-related information.

Below is the list of features, pros, and cons of three GPS antennas. Which one matches your needs?

1. QGP Supply Active GPS Antenna

The Active GPS Antenna by QGP Supply comes with a power amplifier that significantly enhances signal reception. It is typically installed in larger vehicles. Since this antenna has a lot to offer, there is no wonder that it has made it up to our list.

Here are the features you would expect from this device:

Key Features

The QGP Supply Active GPS Antenna is made with a magnetic base, which you can conveniently mount to the roof of your car. This magnet keeps the antenna secured. More than that, you don’t have to worry about the rain too. This antenna is waterproof and can withstand rainy days.

The built-in, low-noise amplifier (LNA) on this antenna helps increase signal reception by up to 28 dB. Its cable is three meters long, allowing you to install it anywhere in your car. If it is too long though, you can just cut off the excess length.

Since it is an active antenna, it requires a power supply. One disadvantage of using an active antenna is it can cause current drain. The QGP Supply Active GPS Antenna requires three to five volts to function.

Coming in at a petite size of 45 by 38 by 15 mm, this antenna is hardly noticeable on or in the car. It comes in a black housing and weighs only 60 grams or 2.11 ounces.


  • Effectively enhances signal reception
  • Very lightweight and compact
  • Easy to attach
  • Weatherproof
  • Pretty solid
  • Affordable


  • Missing information about SMA connector type

2. Xtenzi Active GPS Antenna

If you are looking for a GPS antenna that is designed for a more specific type of vehicle, then your quest might be a tougher one. If it happens that you are driving a Mercedes, Audi, or VW, then this Xtenzi Active GPS Antenna will suit your need.

Get to know more about this GPS antenna and what it can offer by going through its features, pros, and cons below.

Key Features

The Xtenzi Active GPS Antenna can be mounted in the car easily via its magnetic base. In fact, even though you mount it outside your car, it stays safe in its waterproof case. It stays durable and doesn’t get damaged in harsh weather conditions too.

While it is compatible with only a few units, this GPS antenna works perfectly. It is specifically manufactured for VW/Audi Select Navigation System. It comes with a blue-colored, type C Fakra connector, which also matches well with Mercedes W211 E-class and APS 50 in CLK W209 and W219.

This external, active antenna helps improve the signal gain by three dB and the center frequency by 1575.42 Mhz+3Mhz. The QGP Supply Active GPS Antenna comes in dimensions 6.4 by 4 by 1.1 inches and weighs only 4.8 ounces.


  • Easily attaches to the car
  • Lightweight and portable
  • Easy to install
  • Weatherproof
  • Affordable


  • Compatible with just a few units
  • Small signal gain

3. GlobalSat AT-65SMA GPS Antenna

The GlobalSat AT-65SMA GPS Antenna is a bit more expensive than the other antennas on this list. With that said, will its features and the advantages it offers be worthy of the extra cost? Let’s find out!

Key Features

The GlobalSat AT-65SMA GPS Antenna enhances the signal reception effectively, which, in turn, helps improve the accuracy of the GPS unit. With its magnetic base, it can be easily mounted anywhere on the car. It works perfectly in almost all types of vehicles, big or small.

The GlobalSat AT-65SMA GPS Antenna can be used for varying purposes. This includes public transportation, ambulance, boats, RVs, and some commercial uses. With its 15-foot cable, this antenna can be installed anywhere in the vehicle without too much hassle. It comes with an SMA connector too.

All in all, this GPS antenna measures 1.8 by 0.5 by 1.5 inches. It weighs only 3.84 ounces, which puts it at the middle compared to the weights of the other two GPA antennas on this list.


  • Compatible with different GPS units
  • Waterproof
  • Durable
  • Accurate and reliable
  • Portable


  • Quite expensive
  • Requires an adapter

The Final Say

Installing an additional antenna to improve your GPS signal is a smart decision. The abovementioned GPS antennas are excellent choices depending on your needs and preferences. If you are not constricted to a budget, the GlobalSat AT-65SMA GPS Antenna is worth an investment.

Many users will choose the GlobalSat AT-65SMA GPS Antenna. It is most suitable for large vehicles such as boats, RVs, ambulance, vans, and others. It helps enhance signal reception so you will get an accurate location.

All of the three GPS antennas have a durable black casing that is weatherproof and waterproof. All of them have a magnetic back and long cables, which make each of them easy to mount on any part of the car.

If you are limited within a budget, the QGP Supply Active GPS Antenna is a great choice. It can increase the signal gain by up to 28 dB and requires a low voltage. The Xtenzi Active GPS Antenna, on the other hand, is more affordable, but it is compatible with only a few units.