Modem HW v5.1 for Precise Indoor Positioning and Navigation System

$115.00

Modem is a central controller of the system and must be always active, when the system is running

Modem HW v5.1 for Precise Indoor Positioning and Navigation System

  • Modem is a central controller of the system and must be always active when the system is running
  • Modem’s HW supports up to 250 beacons – mobile + stationary – in any combination
  • Modem is used to set up the system, monitor it, and interact with the Dashboard
  • Modem can be placed anywhere within the radio coverage for permanent radio connection with all beacons (star architecture) — usually, in the radius of up to 100 meters with antennas from the Starter Set
  • Radio coverage can be extended farther to a few hundred meters by using a radio profile with a lower bitrate, for example, 38kbps, and a full-size antenna on both ends (modem & beacon). The option shows up to 400+ m range in ideal conditions
  • There is currently only 915/868MHz of modem version available for Modem v5.1. The 433MHz version can be produced for 100+ pcs order within 5 weeks
  • A proprietary radio protocol used for communication and synchronization

Additional information

Weight 0.04 lbs
Dimensions 1.18 × 1.18 × 2.4 in

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Product Manuals

If applicable, the Product Documentation, Reference Materials, CAD design(s),.STEP file(s) and/or other drawing files, Manuals, and Tutorials will be available for download upon purchase. The order confirmation email will include a downloadable link to the product file(s), which can also be downloaded from the My Account section if needed.


Marvelmind Indoor Navigation System is an off-the-shelf indoor navigation system, designed to provide precise (±2cm) location data to autonomous robots, vehicles (AGV), and copters. It can also be used to track moving objects via mobile beacons attached to them. Other applications include, for example, forklifts, virtual reality (VR) systems, helmets for construction workers or miners, etc.

The navigation system consists of a network of stationary ultrasonic beacons interconnected via a radio interface in a license-free band, one or more mobile beacons installed on objects to be tracked, and a modem providing a gateway to the system from PC or other computers.

A mobile beacon’s location is calculated based on a propagation delay of ultrasonic pulses (Time-Of-Flight or TOF) between stationary and mobile beacons using a trilateration algorithm.

The system can build the map of stationary beacons automatically. In simple cases, no additional manual data input or any manual distance measurements are required. This map formed once can be frozen and stored in the modem’s memory and the system becomes fully active within 7 to 10 seconds after the modem is powered.

Terms and Conditions

- Standard warranty – 1 month from the date of delivery

- Extended warranty is available upon request

- Free of charge exchange for dead on arrival equipment within the warranty period, if proven manufacturer’s fault. Description, photos, screen shots etc. of proof may be required.

Shipping Policy

- Shipping is free for orders of 588 USD and above for the majority of countries. Shipping is done directly from our warehouse in Shenzhen, China

- Regular Shipping & Handling fee is 59 USD is applied for remote places or orders under 588 USD

- Shipping cost is manually calculated case by case for orders containing Robot Boxie and similar products that are produced on request.

- Shipping is done via DHL/FedEx/UPS/EMS depending on the country of destination and the country of origin

- The risks and responsibilities for the parcel are transferred to the buyer as soon as we share a tracking number. The closest is Incoterms 2020 is CPT. For the avoidance of doubts, import customs duties and other taxes are paid by the buyer

- Typical delivery time to the US/Europe/S.Korea/Canada is 3-7 days

- Typical the same or next day shipping for all products available off the shelf

- There will be an accompanying invoice from the warehouse together with your parcel from China. It will have beacons/modems listed as 3.5USD/device. This is for HW only. The invoice with the full price of HW+SW is available in the PDF format directly from us upon request

Return Policy

COVID: We are suspending product returns due to the current COVID-19 pandemic unless there is a manufacturing defect. Please study the product and ask us questions before you buy. Thank you.

ORDER CANCELLATION: After you place an order, you have 5 hours to request an order cancellation. After 5 hours, your item(s) have either already been shipped, prepared to ship, or are currently being custom-made. It means we will not process your cancellation request after this period has passed. By placing your order, you signify that you agree to be bound by our Order Cancellation Policy.

PAYPAL and STRIPE SERVICE FEES: Please note both PayPal and Stripe do not offer a refund for the service fees they charge when you purchase a product. Therefore, after placing an order, if you change your mind and ask for a refund, we will deduct the service fee for PayPal or Stripe, whichever one you used to purchase. If you have any questions about this, please contact PayPal or Stripe.

EXCHANGE POLICY: Oz Robotics wants you to be happy with your new purchase. However, we abide by the exchange policy of our suppliers because we do not manufacture these products; our suppliers do. Once you used the product, our supplier(s) and we have the right not to issue a refund. Still, we will offer an exchange for the wrongly purchased items or products with serious and irreversible defects or technical problem(s). The buyer will pay the shipping fee for wrongly purchased products or any other similar issues. If the product you purchased is defective, please email us at support@ozrobotics.com with some photos or a video of the defective parts to evaluate before you send it. Click HERE for more on Refund and Replacement Policy

REFUND POLICY: Oz Robotics accepts refunds on a minimal basis unless there is a manufacturing defect. For any electronic items, returns are only accepted on devices with serious and irreversible problems; meanwhile, the customer must apply for the returns within seven days from the delivery date. Before a refund acceptance, please include images or a video and any other material proof of the defect. However, we abide by the exchange policy of our suppliers because we do not manufacture these products; our suppliers do. For more info on Refund and Replacement Policy please visit Refund and Replacement Policy.

Other than our supplier’s default policy, once a return is agreed upon, you can ship your defective item to the provided return address that you should receive from us first. Please ship the order in original packaging with all the accessories and additional parts. If the Required Parts are not sent back, they will be billed for or expected to be shipped at a later stage. And only once all items have arrived will our staff check the returned product for testing. Include in your package a signed letter stating the reason for your return and the original receipt as well as any mentioned proof of defect, images, or a video, etc. It will help us to speed up the process on your behalf.

The purchaser (customer/buyer) is responsible for all shipping costs when returning an item. However, upon receiving the returned order, we will assess the product. If it is determined that there is, in fact, a manufacturing defect, then we will refund the shipping costs as well as repair or replace or refund the full amount to the purchaser if the product is not fixable.

If you wish to return an unused product, please do so within seven days from the ship date for a refund on the purchase price, minus shipping, handling. Refunds will be credited to the original credit card used for payment in 24-48 HOURS after receiving the product back. We will charge 50% restocking fee.

Once your return is received and inspected, and if agreed for a refund, refunds will be credited to the original credit card used for payment in 24-48 hours. Please note that we will charge a 50% restocking fee once you return a product without any defect.

Once your refund is processed, PayPal will return the money to the card used. It may take at least five business days (depending on the bank and credit company) before your refund is posted in your bank account and statements. Contact Us if you still have not received your refund after 5 business days.

Do not return your product to our New York office. For any exchange or refunds, please email us first at support@ozrobotics.com for us to provide you with the steps that need to be followed. Any product you return must be in the same condition you received and returned in the original packaging without being used. Please keep the original receipt. More on Refund and Replacement Policy.

Shipping costs

Shipping from China
Within China $59.00
Outside China $59.00

National Shipping Details

Minimum shipping charge per order $59.00
Free shipping if the order spend is over $588.00

International Shipping Details

Minimum shipping charge per order $59.00
Free shipping if the order spend is over $588.00

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