Flagship GNSS Base/Rover Receiver
Utilizing TRIPLE-FIX technology, the America-built Carlson Viking is the ultimate solution for precision positioning in difficult environments. Used as either a base or a rover, the Viking system features a best-in-class GNSS antenna element and an integrated IMU offering centimeter-level accuracy, heightened flexibility, durability, and self-calibrating tilt compensation.
Carlson Viking Highlights
- American Made: Proudly assembled in Maysville Kentucky with components from USA and Europe, the Viking is completely Carlson designed and engineered
- Triple-Fix: Dual GNSS RTK modules and three separate RTK engines, providing not just exceptional horizontal and vertical accuracy, but essentially eliminating false fixes
- Tilt Compensation: Industry-leading, calibration-free tilt compensation delivers impressive precision even when surveying at up to 60° of inclination
- Best GNSS antenna element:Highest accuracy even when tilting at high angles, excellent multipath rejection, accurate and stable antenna phase center
- Dual hot-swappable batteries: 12+ hours of runtime and the flexibility to charge batteries in-unit with USB-C or with included dual bay charger
- Rugged & ready: IP67-rated, MIL-STD-810G tested
- Highly resilient Best in class anti-jamming and anti-spoofing
- Versatile & efficient: Use as a base or a rover with communication options including 400 & 900 MHz radio, internal mobile data modem, BlueTooth, and Wi-Fi
- Carlson SurvPC: The Viking seamlessly integrates with Carlson SurvPC and Layout field software, and features a powerful web-based UI for remote setup and monitoring
Cutting-Edge Performance and Connectivity
The Viking supports 632 channels, enabling simultaneous tracking of all major satellite constellations, including GPS, GLONASS, BeiDou, Galileo, QZSS, and NavIC (IRNSS).
Equipped with a 4G cellular modem and UHF radio, the Viking ensures robust internet connectivity and reliable RTK data transmission. Configure it as either a Rover or Base Station, providing unmatched flexibility.


Advanced Technology for Every Challenge
At its core, the Viking features the Gama RTK Navigation engine, paired with a sophisticated Web UI for effortless management and upgrades. Its innovative RTK Triple-Fix technology ensures high-fidelity positioning with virtually 100% reliability, guaranteeing precision in every task.
Its ruggedized antenna is engineered for extreme conditions and meets IP67 standards, making it an ideal choice for demanding environments.
Versatility Across Industries
Whether you’re conducting land or marine surveys, GIS mapping, construction projects, or advanced RTK applications, the Viking is your trusted partner.
Precision, Performance, and Reliability
Combined with Carlson’s SurvPC field software, the Viking is more than a positioning system—it’s a powerful tool designed to enhance your efficiency, streamline your workflows, and deliver unparalleled accuracy.
Viking communication interfaces:
- Wi-Fi
- Bluetooth
- Cellular modem
- UHF Radio (400 + 900 MHz)
- 2x Serial RS232
- 1x USB for Ethernet over USB
- 1x removable SD card


Resilience Through Advanced GNSS Signal Processing
Anti-jamming and anti-spoofing protection
Industry-leading interference monitoring and mitigation technology offers resistance against radio interference and protects against intentional GNSS jamming and spoofing
Optimal tracking under high vibration
Maintains high accuracy even under rapid antenna displacement
Resilience to space weather events
The Viking mitigates adverse impacts of ionospheric scintillation and remains stable during solar storms
Multipath mitigation
The Viking’s advanced technology for mitigation of reflected GNSS signals means higher accuracy and reliability when operating new buildings, heavy machinery, and on construction sites
Specifications - GNSS
- Dual GNSS RTK modules
- 3 RTK engines
- Multi-frequency
- Supports all constellations (Including GPS + GLONASS + Galileo + BeiDou + QZSS)
- 632 channels
- RTK1,2
- Horizontal accuracy: 0.6 cm + .5 ppm
- Vertical accuracy: 1 cm + 1 ppm
- Support for L-Band corrections


Specifications - Tilt Compensation
- Accuracy with 2 m pole
- 0.7 cm @ 20 deg
- 0.9 cm @ 30 deg
- 1.2 cm @ 45 deg
- 1.5 cm @ 60 deg
Physical Specifications
PROCESSOR, MEMORY AND DATA STORAGE
- 1.7 GHz Dual Cortex-A55 + 250MHz Cortex-M33
- 2GB DDR4 RAM, 16 GB eMMC storage
PORTS
- USB for ethernet
- 2 x RS232
BATTERY
- Dual removable lithium batteries, 25 Wh each
- Operates up to 10+ hours on one charge
- Hot-swappable, easily changeable in the field
- Optimized for strong performance in cold temperatures
- Excellent lifecycle performance
- Storage life of more than 6 months
- Ready for 10-18 V external power
- Charge with external dual-bay charger or in-unit with USB-C
- Battery indicators
PHYSICAL
- Size: 6.3” (160mm) diameter, 3.75” (95mm) height
- Weight: 2.98 lbs (1.35 kg) with 2 batteries
- Durable, shock-resistant design
- Materials: powder coated aluminum housing, plastic top cover, nitrile rubber o-ring, steel screws
WIRELESS CONNECTIVITY
- Integrated Bluetooth® BT 2.1 + EDR
- UHF radio, fully configurable with TX and RX capability
- Wi-Fi 802.11 ax/ac/b/g/n, 2.4 GHz
- Worldwide network coverage, LTE Cat 4, dual antennas
FIELD-TESTED RUGGED
- IP67 for dust and water resistance
- Operating Temperature: -40 F to 149 F (-40° C to 65° C)
- Storage temperature: -40 F to 185 F (-40° C to 85° C)
- Up to 100% humidity
- Vibration: MIL-STD-810G, method 516.6
- Mechanical Shock: MIL-STD-810G, method 514.6E-I
- Unprotected drop: 2 m range pole drop on concrete, 1 m free drop on hardwood floor
- Inflammability: Fulfills US, EU safety standards; UL recognized batteries
- Chemical resistance: Cleaning agents, soapy water, industrial alcohol, water vapor, solar radiation (UV)


Certifications and Standards
CERTIFICATIONS AND STANDARDS
- FCC Class B
- CE Marking (applicable EMC, R&TTE, and LVD directives)
VISUAL AND AUDIO INDICATORS
- 6x LEDs for indication of power and status
- Audio speaker for indication of GNSS status and warnings
STANDARD ACCESSORIES
- Viking batteries (2)
- USB wall charger (dual USB with USB-A and USB-C)
- Viking external battery charger (dual-bay)
- Viking 5-pin cable for 12 V power supply and USB-C charging
- Viking 7-pin cable USB cable to connect to PC
- UHF 400 MHz UHF antenna
- UHF 900 MHz UHF antenna
- UHF cable extension bracket
- 5/8” quick release adapter
1 Depends on multipath environment, number of satellites in view, satellite geometry, and ionospheric activity
2 Depends also on baseline length
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