Support

Frequently Asked Questions

marXact

Where does marXact stand for?
Simply put, marXact stands for marX your Xact position, cause that's what we do! How that translates into our philosophy? You can read about that here!
Where is marXact registered?
marXact is a Dutch private limited company registered in Holland under the Dutch Chamber of Commerce No. 68076622, with EU Vat number NL857291828B01 and headquarters residing in Hilversum, Holland.
How do I get in touch with marXact?
You can fill out the contact form on the bottom of this page, here or here. Please describe your reason of contact as thoroughly as possible and we will aim to get back to you within 48 hrs on working days.
Can I visit the offices of marXact?
Our Headquarters are located in Hilversum, The Netherlands and you are more than welcome for a cup of coffee, however, please make an appointment up front so we can make sure the coffee is hot! To make an appointment, you can fill out the contact form on the bottom of this page, here or here.
What is the privacy policy of marXact?
The privacy statement of marXact B.V. can be found here; Privacy Statement.
What are the general terms of marXact?
The general terms and conditions of marXact B.V. can be found here; Terms & Conditions
Can I get a job at marXact?
Yes you can! Whenever we have a job opening, we will post it in the news section. However, even when there is no opening, we might want to hire you. Just let us know why and how you think you can be a great addition to our team, by sending a short motivation letter through the contact form on the bottom of this page, here or here and we will get back to you!
What is the cookie policy of marXact?
The cookie statement of marXact B.V. can be found here; Cookie Statement.

Working with a GNSS receiver

What is a GNSS receiver?
A GNSS receiver is a device which is capable of receiving GNSS signals in order to determine your (exact) location. GNSS receivers come in all kind of shapes and sizes and different accuracies. In general, GNSS receivers are divided in three classes; recreational, mapping and survey grade receivers. The UNI-GR1 is a so called survey grade GNSS receiver, which means it can achieve centimeter accuracy.
I am really new to all this, where should I start?
Obviously, our suggestion would be to start by ordering the UNI-GR1 RTK GNSS receiver here. However, in case you don't know much about the subject yet, it is wise to take a look here, on Navipedia, which is the wikipedia of GNSS. In case you still have questions afterwards, feel free to let us know by filling out the contactform on the bottom of the page or here.
It sounds complicated, can I even work with the UNI?
Yes you can! The technology behind the exact positioning indeed sounds complicated, however, marXact aims to make the use of the UNI accessible to everyone that's willing to get their exact location. Yes, you might have to do some reading of the manuals and maybe some research on your exact application; but in the end everyone should be able to work with the UNI. And don't worry, we are here to help you with your specific questions.
What does GNSS mean?
GNSS stands for Global Navigation Satellite System, which is a constellation of satellites orbiting over the earth surface, sending you signals so you can determine your own location. Well known constellations are GPS, Galileo, Glonass and Beidou. These constellations, all supported by the UNI, are all global navigation satellite systems.
What does RTK mean?
RTK stands for Real Time Kinematics and is a differential GNSS Technique which the UNI supports in order to achieve centimeter accuracy. In summary, using this technique the UNI as a rover receives a correction signal from another UNI acting as a base station or a correction provider in order to resolve the main errors of the rover and to get a centimeter accurate fix.
What does DGPS mean?
DGPS or more generally speaking, DGNSS, is a classical differential technique enhancing the standard GNSS accuracy to the range of 1 meter accurate. The UNI-GR1 supports this technique to improve accuracy.
How do I get CM accuracy?
In order to get centimeter accuracy with the UNI-GR1, you need to make use of the RTK technique for on the go centimeter accuracy or post processing for centimeter accuracy at a later stage. Both methods are supported by the UNI.
Where can I find the manuals?
Since we are still optimizing user experience at the moment, the manuals are not yet available. Once the manuals are available they can be found on this page, below the FAQ. If you want to stay updated, please subscribe for the newsletter through this form!

UNI-GR1

What does UNI-GR1 stand for?
UNI-GR1 stands exactly for what it is; a UNIversal GNSS Receiver! We like to keep it simple...
How can the UNI be cheaper than most GNSS receivers?
the UNI: you only pay for what you need

marXact is a young Dutch startup, founded to develop and produce universal and cost efficient GNSS Receivers with high accuracy. It’s marXact’s intent to make high accuracy positioning more affordable for a broad range of users, without any loss of quality. For that reason we focused on cutting out what you don't necessarily need, make use of new technology and outsource causes of large overhead cost by using the strength of our partners. Therefore we do not have a huge dealer network, neither do we send our sales team across the world for one device demonstrations or do we have multiple side products in stock. But… we do offer you a low priced, high-quality universal GNSS receiver. That’s it!
Can I get a demonstration of the UNI before buying it?
Yes you can! Throughout the year we organize demonstration days where everybody is welcome to try out the UNI-GR1. Keep an eye out on our news section for more information on the dates and join us! Unable to attend or do you want a demonstration for your company? Let us know through the contact form at the bottom of the page, here or here and we will make it work!
Is the UNI a base station and a rover?
Yes, the UNI can be configured as base station or as a rover, no problem!
Does the UNI come with mapping & surveying software?
As part of our philosophy, marXact focuses on the core, which at first is bringing you an highly universal GNSS device at low cost which enables you to make use of very advanced (free) software and hardware out there. There is already so much good stuff out there, why force you to make use of our software? For example, you can easily get going with mapitGIS and don't worry, the UNI does come with the basics you need to get started!
Does the UNI work indoors?
You might get a signal indoors, but it's unlikely that this is an accurate positioning fix. Since GNSS positioning preferably requires a clear line of sight to satellites in order to work well, it is not recommended to use this technique indoors. However, the UNI is equipped with advanced techniques using inertial measurement units to augment the signal in case of a temporary loss of signal in challenging environments.
Does the UNI work with other GNSS / RTK devices?
Yes! Since the UNI-GR1 makes use of general formats such as RINEX and RTCM 2.x/3.x, and a wide variety of connection methods such as mobile data, wifi, bluetooth, long range radio, serial and more; the UNI is compatible to work with many other GNSS / RTK devices and networks out there.
How do I achieve centimeter accuracy with the UNI?
In order to get centimeter accuracy with the UNI-GR1, you need to make use of the RTK technique for on the go centimeter accuracy or post processing for centimeter accuracy at a later stage. Both methods are supported by the UNI.
Will I get CM accuracy on the go with one UNI only?
Yes you can get centimeter accuracy on the go with just one UNI, however, in that case you need to make use of a RTK correction provider. In case time is not of the essence, you can get achieve CM accuracy afterwards by using post processing.
What is the maximum distance between a UNI rover and a UNI base station?
Depending your connection method between the UNI rover and UNI base, the maximum distance goes up to 20km, where accuracy increases when the distance between rover and base decreases.
How many rovers can be connected to a UNI base station?
There is no limitation to the amount of rovers connected to a UNI acting as a base station.
Will I get automated updates?
Yes you will, when you are connected to the internet and are logged in to your UNI with an active UNI-Cloud account, you will receive automated updates.

Orders & Payments

When will I receive my ordered UNI?
Upon receiving your payment, we process your order immediately. If your order is processed before 13.00 on a working day, we will hand over your order to UPS the same day. After that, you can check the tracking code you received per email for more updates. Check your SPAM folder, it might be there!
Can I order an UNI-GR1 without prepayment?
No, we are sorry but you can't. As part of our philosophy of making high accuracy positioning more affordable for a broad range of users, we aim to keep our cost low. Keeping cost low includes cutting on debt and risk management, for that reason we require all orders to be paid before being processed and dispatched.
What are the Payment methods ?
The following payment methods are supported on our website;
  • Bank Transfer
  • Credit Card
  • iDeal
  • Bancontact
  • SOFORT
  • Giropay
In case your favorite payment method is not supported, please let us know here and we'll make it work.
Is it safe to pay using these payment methods?
Yes it is, since it is our highest priority to keep your payment information safe and we don't want to store any of your private payment details such as credit card numbers, we work together with the most safe and transparent parties out there.

For Credit Card, iDeal, Bancontact, SOFORT and Giropay users we make use of the services of payment provider Stripe. Stripe takes safety very seriously and exceeds most stringent security standards. All transactions made through Stripe are SSL protected, all data is encrypted and Stripe has received the PCI Service Provider Level 1 which is the highest grade of payment processing security. More information on the safety of Stripe can be found here.

In case you don't want to make use of online payments handled through our online store, you can always choose to pay by making a bank transfer.
Can I pay my purchase manually through my personal bank account?
Yes you can! On check-out, select the direct bank transfer option. When you have placed the order, we will send you an invoice and the details for a bank transfer per email. Once we have received your payment, we will process your order.
How do I know you have received my order?
Check your inbox! In case we have received your order, you've got (e)mail! If not, please check your spambox, or email might have ended up there. If it's not there either, please contact us by filling out the form on the bottom of this page, we will aim to get back to you within 48 hours on working days.
I did not receive a confirmation email?
In case you didn't receive a confirmation e-mail a few minutes after your purchase, please check your spambox. It is possible that your email provider marks our emails as spam. If this is not the case, it might be that you made a typing error in your e-mail address or maybe something went wrong on our end. In those instances, please contact us by filling out the form on the bottom of this page, we will aim to get back to you within 48 hours on working days.
How do I cancel my order, return or exchange my product(s)?
Please contact our support team by filling out the form on the bottom of this page, mentioning your order number and the reason of cancellation, return or exchange of your product. We will aim to get back to you within 48 hours on working days. Returns, exchanges and cancellations are handled according to marXact's terms & conditions.
How long will it take to receive my refund?
After receiving your return shipment, we will initiate your refund as soon as possible. Depending on your payment method we aim to have your money back in your account withing 1-2 weeks upon receiving your return shipment.
What is included when I order the UNI-GR1?
When you order one UNI-GR1, your package will include the following items;
  • 1 UNI-GR1
  • 1 Rugged Casing (Pelicase)
  • 1 DC Adapter
  • 1 12-pin to DC adapter cable
  • 1 Micro USB to USB-A cable
  • 1 NFC Tag

Shipments

Do you ship internationally?
Yes we do! The UNI is shipped internationally to all countries where the use of our internal radios is not restricted. Please check the specifications of the UNI-GR1 for more information or send us a message through the contact from at the bottom of this page.
What locations do you deliver to?
The UNI is shipped internationally to all countries where the use of our internal radios is not restricted. Please check the specifications of the UNI-GR1 for more information or send us a message through the contact from at the bottom of this page.
When will my order be dispatched?
At the moment the UNI-GR1 is in stock and we have received your payment, your order will be dispatched the same day on working days if we have received payment before 13.00 local time.
Can I order online and pick up at your offices?
If you want, you can make an appointment to pick up your order in our offices in Holland. Please let us know by filling out our office address as shipping address during check out and contact us through the form on the bottom of this page.
How long will it take before I receive my order?
Upon receiving your payment, we process your order immediately. If your order is processed before 13.00 on a working day, we will hand over your order to UPS the same day. After that, you can check the tracking code you received per email for more updates. Check your SPAM folder, it might be there!
Can I send my order to two addresses?
No, we do not offer an option to deliver at two addresses. We would advise you to make separate orders for separate shipping locations.
Can I receive my order the next day?
Depending stock, location and the shipping method you select, you can receive the order the next day in case your order is placed before 13.00 on a working day. Please follow the information in the check-out process for the exact details.
Do I need to sign for delivery?
Yes, all goods shipped by marXact need a signature upon delivery.

Account

I have forgotten my log in details. What should I do?
You can reset your password here. In case you don't remember your username or email, please fill out the contact form at the bottom of this page and we will try to help you to the best of our abilities!
Why do I need to register for an account when I make a purchase?
Even though the UNI-GR1 is cheaper than alike GNSS receivers, it is still a high-value product. For that reason we want to make sure you can follow your order status on our website, which you can with an account on our website.
What does marXact do with my account information?
We use your account information to be able to support you in case you need support, apart from that it is used for billing and shipping. For more information, please see our privacy statement.
Can I change my details in my account?
Yes you can, after logging in you can change your account details and addresses by going to my account -> account details and/or addresses.
Can I delete my account?
Yes, if you wish to delete your account, please send us a message through the contact form on the bottom of this page and we will get back to you.

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