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Carlson BRx7

The BRx7 GNSS receiver with SurvCE/SurvPC delivers a modern and flexible GNSS RTK product for precision surveys, with an intuitive and familiar application software. The lightweight BRx7 receiver may be used as a Base or Rover.

The BRx7 provides a class-leading 800+ channels, 8gb of memory, tilt compensating ability, and a rugged, compact, IP67-rated housing. Best-in-class RTK performance is provided by the Athena GNSS engine, supporting multi-frequency GPS, GLONASS, BeiDou, Galileo, QZSS, IRNSS, and Atlas L-band capability. The BRx7 has an integrated dual-band UHF transceiver and a Quad-Band GSM modem together with Wi-Fi and Bluetooth.

Typical applications include Topographic and Engineering Surveys, Construction, Mapping and GIS. 

Single Rover:  $12,995

Base & Rover:  $24,250

SureFix works with the GNSS engine to provide high-fidelity RTK quality information, resulting in improved RTK accuracy, availability, and guaranteed precision with virtually 100% reliability.

 

Particularly helpful when working near or under canopy, the SureFix processor takes several inputs and determines the quality of the RTK solution. This additional process provides the user with high-fidelity information about the quality of the RTK solution, and an invaluable indicator of current accuracy.

SUREFIX®

CARLSON LISTEN-LISTEN READY

Carlson Listen-Listen is a unique cloud based low latency service available to Carlson SurvCE/PC customers using Carlson’s BRx7 or NR3 GNSS receiver as a base station.

 

The system eliminates baseline length restrictions encountered when using UHF radios, supports single base and multiple simultaneous rover connections, and is hosted through Amazon Web Services for unlimited processing power, speed, and bandwidth.

 

BRx7 customers using Carlson SurvCE/PC are granted a one-time, 6-month trial of Carlson Listen-Listen.

GNSS RECIEVER SPECIFICATIONS

Receiver Type: Multi-Frequency GPS, GLONASS, BeiDou, Galileo, QZSS, IRNSS, and Atlas L-band
Signals Received:

GPS L1CA/L1P/L1C/L2P/L2C/L5
GLONASS G1/G2/G3, P1/P2

BeiDou B1i/B2i/B3i/B10C/B2A/B2B/ACEBOC

GALILEO E1BC/E5a/E5b/E6BC/ALTBOC
QZSS L1CA/L2C/L5/L1C/LEX IRNSS L5 Atlas

Channels: 800+
RTK Formats: RTCM2.1, RTCM2.3, RTCM3.0, RTCM3.1, RTCM3.2 including MSM, CMR, CMR+
Recording lntervals: Selectable from 1, 2, 4, 5, 10 Hz (20 Hz or 50 Hz optional)

L-Band Receiver Specifications
Receiver Type: Single Channel
Frequency Range: 1525 to 1560 MHz
Sensitivity: -130 dBm
Channel Spacing: 5.0 kHz
Satellite Selection: Manual and Automatic
Reacquisition Time: 15 seconds (typical)

PORTS & STORAGE

Connector Ports

TNC: For connecting to UHF radio antenna
LEMO 5-pin: For connecting to external power supply, external radio
LEMO 7-pin: For serial port, USB
Card Slots: For Nano SIM card and Micro SD card

Data & Storage

Storage Type: 8 GB internal, SD card up to 32 GB

ACCURACY & COMPENSATION
Positioning: RMS (67%), 2DRMS (95%)
Autonomous:

no SA*: 1.2 m, 2.4 m
SBAS*: 0.3 m, 0.6 m
Atlas (H10)*,***: 0.04 m, 0.08 m
RTK *,**: 8 mm + 1 ppm, 15 mm + 2 ppm
Static Performance*: 2.5 mm + 1 ppm, 5 mm + 1 ppm

 

Tilt Compensation
(within 30°): 2 cm (with 1.8 m pole)
(within 60°): 5cm (with 1.8 m pole)4
Initialization Time: < 10 s

COMMUNICATIONS

Bluetooth: Bluetooth 2.1 + EDR / 4.0 LE
Wi-Fi: 802.11 b/g
Network:

LTE FDD: B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28
LTE TDD: B38/B39/B40/B41
UMTS: B1/B2/B4/B5/B6/B8/B19
GSM: B2/B3/B5/B8

Radio: Frequency range: 410MHz – 470MHz and
902.4MHz – 928MHz
Channel Spacing: 12.5 KHz / 25 KHz
Protocol: TrimTalk 450S, PCC EOT, TrimMark 111(19200)

WebUI: To upgrade software, manage settings, data download, via smartphone, tablet or other electronic device, configure advanced radio settings.

PHYSICAL & ENVIRONMENTAL
Physical

Weight: 1.12 kg (1 battery), 1.25 kg (2 batteries)
Dimensions: 156 x 76 mm

Environmental

Operating Temperature: -30°C ~ +65°C
Storage Temperature: -40°C ~ +80°C
Protection: IP67. Protected from temporary immersion to a depth of 1 m
Shock Resistance: MIL-STD-81 0G, method 516.6.


Designed to survive a 2 m pole drop on concrete floor.
 

Designed to survive a 1 m free drop on hardwood floor
 

Humidity: Up to 100%
Vibration: MIL-STD-810G, method 514.6E-I
lnflammability: UL recognized, 94HB Flame Class Rating (***) 1.49 mm
Chemical Resistance: Cleaning agents, soapy water, industrial alcohol, water vapor, solar radiation (UV)

ELECTRICAL & UI
Electrical

lnput Voltage: 9 to 28 V DC
Battery: Dual removable batteries included, Each Battery: 7.2 V, 3400 mAh, 24.48 Wh
Working Time: Up to 12 hours

User lnterface

Button: Switch receiver on/off, broadcast current operation mode and status
LEDs: Power, Satellite, Data Link, Bluetooth
WebUI: Supports software updates, receiver status and settings, and data downloads via smartphones, tablets, or other Wi-Fi capable devices.

*. Depends on multipath environment, number of satellites in view, satellite geometry, and ionospheric activity
**. Depends also on baseline length
***. Requires a subscription from Hemisphere GNSS
****. Higher error can be observed in the GPS RTK solutions with tilts over 30°