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SparkFun RTK Express Kit

SKU: GPS-18380 Brand: Sparkfun

The RTK Express Kit has everything you need to get centimeter level global positioning measurements using GNSS RTK. We've created a handy carrying case to...

$1,311.10 AUD, inc GST

$1,191.91 AUD, exc GST

Quantity Discounts:

3+ $1174.03 (exc GST)

Out of Stock

The RTK Express Kit has everything you need to get centimeter level global positioning measurements using GNSS RTK. We've created a handy carrying case to protect the most expensive bits, allowing you to quickly attach the L1/L2 antenna and RTK Express housing to the pole or tripod of your choice. The kit includes all the antenna bits, cables and chargers you need to jump right into the field.

The RTK Express is a Bluetooth enabled multi-band GNSS receiver based on the ESP32 from Espressif and the ZED-F9P from u-blox. Power it up and you'll have 300mm approximate accuracy out of the box and 18mm accuracy with RTCM corrections. This kit provides the L1/L2 antenna, adapters, interface cables, and chargers needed for general GNSS use.

We generally recommend using your cellular phone as the radio back haul for RTCM but if you prefer to use radios, these Serial Telemetry radios can to be purchased separately. You can also use your own, higher power radios as long as they support 57600bps. Sparkfun also recommend logging all data to your phone over Bluetooth. This is as simple as checking a box within SW Maps. But if you prefer to do long surveys, or need to deal with RAWX measurements where a phone will not be present, a microSD card should be purchased (any size up to 32GB).

Please keep in mind that you will need to provide your own mono-pod or tri-pod as well as a cell-phone type holder for securing the RTK Express to your mono-pod or tri-pod. We've found this style clamp and this style clamp work well. Your mileage may vary.

Note: The L1/L2 antenna has a 5/8" thread which will fit most surveying platforms. The kit includes a 5/8" to 1/4" adapter as well which will fit most camera mono-pods and tri-pods. You may need additional adapters for your specific equipment.

GNSS Receiver: ZED-F9P

Concurrent reception of GPS, GLONASS, Galileo and BeiDou
Receives both L1C/A and L2C bands
Current: 68mA - 130mA (varies with constellations and tracking state)
Time to First Fix: 25s (cold), 2s (hot)
Max Navigation Rate:
- PVT (basic location over UBX binary protocol) - 25Hz
- RTK - 20Hz
- Raw - 25Hz
Horizontal Position Accuracy:
- 2.5m without RTK
- 0.010m with RTK
Max Altitude: 50km (31 miles)
Max Velocity: 500m/s (1118mph)

Bluetooth® Transceiver: ESP32 WROOM

Xtensa® dual-core 32-bit LX6 microprocessor
Up to 240MHz clock frequency
4MB of flash storage
520kB internal SRAM
Integrated 802.11 BGN WiFi transceiver
Integrated dual-mode Bluetooth® (classic and BLE)
Hardware accelerated encryption (AES, SHA2, ECC, RSA-4096)
2.5 µA deep sleep current

Overall Device

Internal Battery: LiPo 1300mAh with 500mA charging
Radio Port: 3.3V TTL Serial (57600bps RTCM TX/RX)
Data Port: 3.3V TTL Serial (115200bps NMEA)
Embedded OLED Display for available satellites, data logging, and more.
Push button controls
Weight: 162g (entire device including battery)
Dimensions: 132mm x 101mm x 32mm (5.2in x 3.9in x 1.2in)
1x Qwiic Connector

GNSS Multi-Band L1/L2 Surveying Antenna

Gain: =5dBi
LNA Gain: 40dB
Reception Frequencies
- L1: 1555 to 1615MHz
- L2: 1198 to 1278MHz
50 Ohm Antenna Impedance
Overall antenna weight: 335g
Bare antenna element weight (including MMCX connector, with RF shield): 160g
Dimensions: 148 x 55mm
Waterproof IP67
Connector: Female TNC

Documents

This product is listed in:

Wireless>GPS>Modules
Wireless>GPS>RTK

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We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
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$10+ for Express Post (typically 2+ business days, tracked)
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Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$11+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

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