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Carlson Software NR3

Accurate. Light weight. Versatile.

The Carlson NR3 is a compact GNSS Smart Antenna designed for Network Rover applications. The lightweight NR3 combines with a Prism on a survey pole to make a very portable yet complete assembly to operate with GNSS and a Robotic Total Station simultaneously using SurvCE/PC 6.0 with Hybrid+. In addition to being small and low weight, the Carlson NR3 leverages powerful satellite navigation technology for reliable RTK GNSS.

  • Carlson Software NR3
Carlson Software
33 East Second Street
41056 Maysville
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The Carlson NR3 is a compact GNSS Smart Antenna designed for Network Rover applications. The NR3 and a prism make a light weight survey pole assembly to utilize SurvCE/PC 6.0 with Hybrid+ for simultaneous GNSS and Robotic Total Station surveys.


• GPS, GLONASS, BeiDou, Galileo
• Light weight 820 g (1.8 lbs)
• Hot-Swap Batteries
• 4G LTE Cellular Modem
• Wi-Fi 802.11 b/g/n
• Bluetooth 2.1 + EDR
• 16 GB Internal Memory


GNSS Technology
The NR3 utilizes 4 constellations to produce reliable GNSS RTK, with triple-frequency tracking on GPS, GLONASS and Galileo. The solution incorporates multipath and ionospheric detection algorithms to maintain accuracy while exhibiting stable satellite tracking during shocks or vibration. The light weight NR3 receiver may be used as a Base or Rover.


A Perfect Pairing with Carlson SurvCE or SurvPC, Data Collection Software
The new Hybrid+ feature allows simultaneous interaction with GNSS and a Robotic Total Station, with the GNSS and prism both mounted on the survey pole. Hybrid+ provides increased Quality Control as there are two instruments measuring the same point. In addition, GNSS position at the pole allows a faster prism acquisition than traditional searching, as well as improved tracking. Hybrid+ allows easy setup anywhere using GNSS coordinates, and minimizes common survey challenges from stray reflectors, false fixes and obstructions.


  • Type
  • Year of initial introduction
  • Height [m]
  • Depth [m]
  • Total Weight [kg]
    <.820 kg
  • Internal power supply
    2 x 3.6 V, 3400 mAh Li-Ion
  • External power supply
    9 to 30 VDC
  • Operating time with internal power supply [hr]
  • Rechargeable with (auto)battery
    6 hours, continuous with hot-swap
  • Direct car connection cable available
  • Operating temperature: min. [°C]
  • Operating temperature: max. [°C]
  • Water sand and dust proof
  • Shock and vibration proof
    2 m pole drop on concrete floor
  • No. channels
  • SBAS differential signals
    0.6 m (horizontal) 0.8 m (vertical) *Optional feature
  • Reacqisition time [s]
    avg. 1
  • RTK Network Compatibility
    6 mm + 0.5 ppm (horizontal) 10 mm + 1 ppm (vertical) (optional feature, performance depends on environmental conditions, RMS level, Baseline <20 km (12.4 miles))
  • Memory medium
    16 GB Internal
  • Communication ports
    1 x 9-pin Lemo, USB, TCP/IP with 2 x Serial Ports, 1 x High Speed Serial Port, Power
  • Bluetooth

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