











RTK GPS Ground Station
- Price
- $1,320
Need centimeter-level accuracy for your Alta X or Astro? Freefly RTK GPS utilizes Real Time Kinematic (RTK) technology to enable pin-point location accuracy vertically and horizontally.
Add this Ground Station module to your ground station computer to unlock Real-Time Kinematic (RTK) technology for centimeter location accuracy horizontally and vertically.
Alta X with F9P GPS installed (not compatible with Here2 GPS).
RTK Overview
RTK technology uses a pair of modules to increase positional accuracy. One module is installed on the aircraft (this module is called the “Rover") and the other will mount on a tripod and be connected to your ground station computer (the “Ground Station” module).
The Ground Station module will let your ground station computer send GPS corrections to the Rover module (on the aircraft) that increase precision from a few meters to a few centimeters, in real-time.
Application
This kit comes with one module, magnetic mounting hardware for common tripods (1/4" 20), and a USB cable. Here's what you will need if you have:
1. An Alta X with F9P GPS (not Here2) and you want full RTK capability:
- One RTK GPS Ground Station for your ground station computer
- A radio to communicate between the ground station computer and the Alta (FRX Pro, etc)
- A tripod or something sturdy to mount your Ground Station module to with the included magnetic adapter
2. An Alta X with Here2 GPS, and you want fully RTK capability:
- Two RTK GPS Ground Stations (one GPS module functions for your Rover and one for the ground station computer)
- A radio to communicate between the ground station computer and the Alta (FRX Pro, etc)
- A tripod or something sturdy to mount your Ground Station module to with the included magnetic adapter
3. An Alta X with Here2 GPS, and you just want increased GPS performance:
- One RTK GPS Ground Station for your Alta X
4. An Astro Base Kit, and you want full RTK capability:
- One RTK GPS Ground Station for your ground station computer
- A tripod or something sturdy to mount your Ground Station module to with the included magnetic adapter
Notes
- If your computer (MacBook Pro, etc) does not have USB A ports, you will need a USB A-C adapter or your own USB C-C cable.
Tech Specs
- Highest level GPS positional accuracy for Alta X and Astro
- U-blox ZED-F9P GPS module
- Multiband L1/L2 receiver
- Includes IST8310 Magnetometer and BMP388 barometer, safety switch, LED, and RGB LED
- Designed and Assembled in USA
- Compatible with AltaSW 1.3+, PX4 1.9+, Astro
- Not compatible with Alta 8 Pro, Alta 8 or Alta 6
In The Box
Qty 1 - RTK GPS module
Qty 1 - Multi-band RTK GPS antenna
Qty 1 - Magnetic mounting kit for tripod, etc (¼ 20 interface)
Qty 4 - Mounting screws for Magnetic Mounting Kit (M3 x 6 FHCS)
Qty 1 - USB cable, Type C right-angle to Type A (3 m / 9.84 ft long)
Qty 3 - Mounting Screws for Alta X Rover installation (M3 x 16 SHCS)
Shipping Information
Our on-line store is open 24/7 and we ship Monday through Thursday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the same business day when received before 12:00 p.m. PST. Orders in high demand will have an estimated time listed on its product page and will ship according to the date listed.
Our on-line store is open 24/7 and we ship Monday through Thursday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the same business day when received before 12:00 p.m. PST. Orders in high demand will have an estimated time listed on its product page and will ship according to the date listed.
Signature is required for most shipments.
*How long does it take for you to ship a product?*
This depends on your location, the method of shipping and the item you choose.
For in stock items inside the USA we typically ship by UPS and FedEx and for small items we ship by USPS. We typically ship items within 1-2 business days of the order for in stock shipment.
Ground Shipments can take up to 5 Business days from our Washington location. Express options are available by contacting us, but UPS and FedEx do NOT guarantee any shipments at this time.
USPS typically takes 2-3 business days for the smaller items by priority mail.
International shipments are typically sent by DHL or FedEx Express. Please note you are responsible for any customs fee, taxes and brokerage fees that may be due by importing an item into your country.
SHIPPING NOTES:
- Orders under $50 = $25 Ground Shipping & Handling
- Orders $50-499.99 = $20 Ground Shipping & Handling
- Orders $500 or higher = FREE Ground Shipping & Handling
- Contact us for Express Shipping Options
- DHL Available for International Orders
Insurance
While the FAA does not require insurance for drone flights, we highly recommend having insurance in case of mishaps with flying drones. When you rent a drone it is your responsibility to use it in a manner consistent with the laws and return the drone in the same condition it was in before rental.
There are two types of insurance for drones.
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Liability: One is liability insurance, this will cover your flights in the event of a crash or incident.
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Hull Coverage: Hull coverage covers the drone if it is damaged. Typically you must have liability insurance to get hull insurance. The Sensor may also be covered separately if it is a removable sensor.
Check with your insurance provider to see if they cover the drone rental and flights. If they do not, we highly recommend that you have insurance when you are flying drones. We have found that Skywatch.ai offers some of the best options for Drone Insurance.
LEARN MORE BY VISITING SKYWATCH HERE

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Business Financing
Do we offer Financing? The short answer is YES we do!
To determine the best financing option, we need to determine if you are interested in a personal financing option or if you will be using a business to finance your purchase.
BUSINESS OPTIONS:
We work with 2 different companies for financing. Each Organization has their own criteria for purchases. These Financing options are for US customers only.
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BNC Financial
Specializes in equipment funding from $500 and up. Follow this link to to the the financing application. -
First Pacific Funding
Financing options from $5000 and up. Follow this link to go to the financing application. - APPROVE Commercial Financing. Add an item to your cart, then click on the APPROVE logo for an inline application on the right hand of your screen. Monthly Payments and rates vary depending on final terms.
PERSONAL OPTIONS:
- Affirm
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Affirm is built into our website. Click on the product you are interested in purchasing, then click on the 'Pre-qualify now' link.
Click Here to see the details on how it works -
Shop Pay
This payment option works similar to Affirm. If you do not see the shop pay option on the product page, click on "More payment options.
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