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GNSS Receivers

GNSS Receivers are the core product for satellite positioning. They convert signals from visible satellites into a position on earth. The amount of visible satellites is dependent on the number of constellations the receiver is compatible with, such as GPS, Glonass, Galileo and Beidou.

We created this complete overview of GNSS Receivers from all key manufacturers and continuously update it. If you want to learn about what factors to consider when selecting and buying a receiver, read our buyers' guide below.

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E300 Pro
E300 Pro

eSurvey GNSS

E300 Pro is a new generation product by eSurvey GNSS. The durable IP67 design makes it possible to work in various environments. Multi constellation and frequency tr

Trimble R12i GNSS Receiver
Trimble R12i

Trimble, Inc.

The Trimble R12i is a high-performance solution for professional land surveyors. It incorporates Inertial Measurement Unit (IMU)-based tilt compensation using Trimbl


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BD940-INS Receiver Module
BD940-INS Receiver Module

Trimble OEM GNSS

Taking advantage of Trimble’s expertize in both GNSS and Inertial technology the Trimble® BD940-INS module has been designed for applications requiring continuous ce

103G MiniPod Submersible GNSS Receiver (1000m)
103G MiniPod Submersible GNSS Receiver (1000m)

applied acoustics

The 103G MiniPod is a lightweight ruggesdised GNSS receiver designed to survive 1000m immersion

107GS MiniPod
107GS MiniPod

applied acoustics

The 107GS MiniPod is a shock-mounted and ruggedised satellite transceiver / GNSS receiver designed for the relocation and positioning of subsea assets at the sea sur

SP20 GNSS Handheld
SP20 Handheld

Spectra Geospatial

Rugged and lightweight, the SP20 is easy-to-use and highly accurate. It is the optimal tool not only for cadastral, construction, or topo surveys, but also for a ran

BD970 Receiver Module
BD970 Receiver Module

Trimble OEM GNSS

The Trimble BD970 GNSS system is a compact multi-constellation receiver designed to deliver centimeter accuracy to a variety of applications.

Unicore UM4B0 BDS/GPS/GLONASS/Galileo All-Constellation All-frequency High-precision RTK Positioning Module
UM4B0

Unicore Communications

UM4B0 is an all-constellation all-frequency RTK positioning module based on high-performance high-precision SoC - NebulasII, which is developed by Unicore Communicat

SP60 GNSS Receiver
SP60 GNSS Receiver

Spectra Geospatial

The Spectra Geospatial SP60 is a GNSS receiver offering a high level of flexibility to cover any survey demand from simple post-processing, through UHF or Long Range

BRx7
BRx7

Carlson Software

The BRx7 provides a class-leading 800+ channels, 8gb of memory, tilt compensating ability, and a rugged, compact, IP67-rated housing. Best-in-class RTK performance i

NovAtel OEM7700 GNSS Receiver
OEM7700 GNSS Receiver

NovAtel

EA301
EA301

eSurvey GNSS

EA301 has superior antenna gain, phase difference, quadrature axis ratio performance to obtain centimeter-level positioning accuracy. It can be used for agricultural

8 Things to Consider When Selecting and Buying a GNSS Receiver

GNSS receivers generally have one main purpose: the providing of an accurate real time position using various satellite constellations. As with all products however, specifications between receivers vary  along with the price. The market for GNSS receivers is competitive with larger and smaller brands providing receivers with a wide range in specifications and added features such as shock and water-resistant housing, Bluetooth connection, built-in interfaces and more. The RTK accuracy and the number of tracked signals in most receivers are up to a high standard. High precision measurements are no longer exclusive to the big-name brands, allowing buyers to sway from these brands and consider more economic investments without compromising the quality of data.

There are a number of other factors to take into consideration when investing. Buying a receiver with the wrong specs for the job may cost thousands in repair or replacement costs as well as lost measurements. The following factors should be considered when choosing a receiver:

1. Dimensions

Depending on the application, the size of the receiver can be the deciding factor for a purchase. More compact receivers will often end up in the higher price range, thus it is important to know the maximum dimension a receiver can have when comparing products.

2. Weight

Especially relevant when the receiver is placed on moving objects like drones, UAV's, or even handheld equipment, there are various reasons the weight of a receiver can be of importance. As the weight is often influenced by factors such as power sources, enclosures, antennas, and other components, it is important to define whether there is a weight limit to regard the priority of these components versus their relative weight.

3. Material and durability

GNSS receivers are used in many different scenarios and climates. A buyer needs to define the conditions the receiver will be placed in, and for which amount of time. Knowing these conditions not only help to ensure the equipment will be able to withstand the working environment, but also helps the buyer to prevent spending money on a receiver too durable for the job.

4. Precision and tracked signals

As mentioned before, many GNSS receivers are already up to a high standard of precision. There are however differences between brands and products, thus a buyer should always check the specifications to be sure. Depending on the region in which the receiver will be used, certain satellite constellation may be more important than others. Here is the list of constellations with the main area of coverage per constellation:

System

Owner

Coverage

Galileo

Europe

Global

GPS

North America

Global

BeiDou

China

Global

Glonass

Russia

Global

QZSS

Japan

Regional

IRNSS/NavIC

India

Regional

5. Operating power / power supply (internal/external) / battery life

The battery life and/or power supply of a receiver is a very important consideration, and dependent on the application. Receivers with built in battery packs are practical for many on-the-go purposes, such as handheld devices and UAV's. Additionally, an internal power source can ensure continuation of measurements when there is a failure of an external power source. Different types of power sources can be required for specific applications and are thus also an aspect in which costs can be spared.

6. Recording

The information recorded and the frequency at which position and other data is recorded by a GNSS receiver can vary. Recording can be triggered by an event such as the press of a button, but a receiver can also provide constant position updates as are required for UAV's. The required frequency of position updates play an important role in most setups, and thus the fitted receiver should be capable of fulfilling this task. Receivers can record in different file types, and not all receivers allow for internal storage of recorded data.

7. Storage capacity

The saving of recorded data may be a required feature, for example when the receiver is not connected to any network or external device. Similarly to internal battery packs, the internal storage of data can prevent the loss of data in case the receiver loses connection with an external storage device.

The frequency in which measurements are recorded, as well as the maximum storage capacity influence the price of the receiver. The setup in which the receiver will be operational should be analyzed to decide what the minimum recording and storage requirements are.

The measured data can be delivered in different formats. Before buying, check which formats are compatible with the rest of the equipment and software.

8. Communication

A receiver can communicate with external computers, processors, and interfaces in various ways. Wired and wireless (Wi-Fi/Bluetooth) connections are available, and the preferred method of communication is dependent on the type of setup. Knowing which type of communication is required in a setup can save money in an investment, but also space, weight, and consumed energy by the receiver.

Communication interface

Some receivers have custom interfaces either built-in, or delivered with accessorizing software to provide an interface on a connected computer. However, an interface will not always be required or practical, and a buyer should not pay extra for such a feature when it is irrelevant.

Alerts

A common application on remote receivers is an alert which can be triggered on movement, change in signal, or any other event. Such systems will bring the receiver into a higher price range, as these functionalities are often used in more custom applications and require more built-in processing.

Conclusion

GNSS receivers are key components for the majority of remote stations, UAV's, and all other types of measuring set-ups. Geo-measurements are rarely relevant without an accurate position, which makes the investment in the GNSS receiver to provide this position a choice not to be taken lightly. In the current competitive market, high accuracy of measurements is becoming more and more standardized, allowing the buyer the freedom to compare main brand receivers with alternative smaller competing brands. The large selection of receivers ranging from high-end waterproof products to minimalistic sensors gives the opportunity for the buyer to only invest in the necessary features to come with the receiver.

Further reading

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