Carlson BRx7 RTK GNSS Rover Set with Tilt Compensation

The Carlson BRX7 Rover Set is a professional multi-frequency RTK GNSS surveying system designed for centimetre-accurate positioning and field data collection. The set combines the BRX7 GNSS receiver with a Carlson RT4 data collector, Carlson SurvPC or SurvCE surveying software, a telescopic survey pole and a controller bracket.

The system is designed for land surveyors, construction professionals, civil engineers, site engineers, utility contractors, GIS specialists and other users who need accurate coordinates, measurements or stakeout information in the field.

Typical applications include topographic surveying, cadastral surveying, construction layout, point stakeout, as-built measurement, earthwork checks, utility mapping, road and infrastructure projects, GIS data collection and site control.

Yes. Surveyors can use it to measure points, boundaries and terrain, while construction teams can use it to set out designs, check positions, record completed work and verify elevations or coordinates on site.

Yes. The BRX7 can receive RTK corrections from a compatible NTRIP, VRS or CORS network through its cellular or internet connection. Access to a suitable correction service and valid connection details is required.

Yes. The BRX7 can operate as either a rover or a base receiver. A complete base-and-rover configuration requires a second compatible GNSS receiver and a suitable correction link, such as UHF radio, cellular communication or Carlson Listen-Listen.

When the receiver has a fixed RTK solution and receives reliable correction data, it can achieve centimetre-level positioning. The published RTK specification is 8 mm plus 1 ppm horizontally and 15 mm plus 2 ppm vertically under suitable conditions.

Accuracy depends on satellite visibility, correction quality, baseline length, satellite geometry, atmospheric conditions and multipath from buildings, vehicles, trees or other reflective surfaces. A fixed RTK status should be confirmed before recording critical points.

The BRX7 supports multiple frequencies from GPS, GLONASS, Galileo, BeiDou, QZSS and NavIC. It is also Atlas L-band capable, although use of Atlas correction services may require a separate activation or subscription.

The receiver has more than 800 tracking channels. This allows it to track many satellite signals simultaneously and helps improve availability and positioning performance in changing field conditions.

The integrated tilt sensor calculates the position of the pole tip even when the survey pole is not held perfectly vertical. This allows users to measure points more efficiently near walls, obstacles, trenches and difficult terrain.

The published tilt specification is approximately 2 cm with a 1.8-metre pole at angles up to 30 degrees and approximately 5 cm at angles up to 60 degrees. Actual performance depends on the RTK solution, calibration, pole setup and field conditions.

The receiver can accept correction data through its internal cellular modem, UHF radio, Wi-Fi, Bluetooth or serial connection. The best method depends on whether the user works with an RTK network, a local base station or an internet-based base-to-rover service.

Yes. The receiver includes an integrated cellular modem that can be used to connect to compatible internet-based RTK correction services. A suitable SIM card, mobile data coverage and network configuration may be required.

Yes. The BRX7 supports UHF communication in the 410–470 MHz and 902.4–928 MHz ranges, depending on the receiver version and local regulations. Radio frequencies and transmission settings must comply with the rules in the country of operation.

Carlson Listen-Listen is a cloud-based service that sends corrections from a BRX7 base to one or more rovers through the internet. It can help avoid the distance limitations and line-of-sight restrictions associated with conventional UHF radio links. A compatible setup and service subscription may be required.

The receiver is commonly used with Carlson SurvPC on the Carlson RT4 tablet or Carlson SurvCE on compatible field controllers. The software supports receiver configuration, coordinate systems, point measurement, stakeout, data logging and file import or export.

Yes. Static and raw GNSS observations can be stored in the receiver’s internal memory or on a microSD card. Logged data can be downloaded through the BRX7 WebUI and converted or processed with compatible post-processing software.

The standard product configuration includes the Carlson BRX7 GNSS receiver, a Carlson RT4 data collector, Carlson SurvPC or SurvCE surveying software, a telescopic survey pole and a controller bracket. Exact accessories and software licences should be confirmed for the selected configuration.

The set includes the main receiver, controller, software and pole equipment needed for a rover workflow. Users may also need an RTK correction subscription, SIM card, local coordinate system information, survey accessories or a compatible GNSS base station.

The BRX7 provides up to approximately 12 hours of operation when two fully charged batteries are installed. Actual operating time depends on radio use, cellular communication, temperature, battery condition and receiver settings.

Yes. The receiver uses two removable hot-swappable batteries. One battery can be replaced while the second battery continues to power the receiver, helping reduce interruption during fieldwork.

The receiver has an IP67 protection rating, meaning it is sealed against dust and protected against temporary immersion in water under the specified test conditions. It is designed for professional outdoor use in rain, dust and demanding construction or surveying environments.

The published operating temperature range is approximately -30°C to +65°C. The receiver should still be protected from conditions outside its specified limits and from prolonged exposure to extreme heat, cold or moisture.