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Michigan based company with a global presence. We ship worldwide to thousands of satisfied customers. Offering Same-Day Shipping & pickup for metro Detroit area land surveyors, civil engineers, architects, excavating & construction companies at our local store in Allen Park, MI. Our equipment is backed by exceptional customer service and support, along with a full warranty.

Offering New & Refurbished Total Stations, GPS / GNSS Base & Rovers, Radios, Antennas, Data Collectors, Grade & Pipe Lasers, Digital Levels, Magnetic Locators, Grade Control Systems, AgGPS Systems, Field Supplies, Accessories, Hand Tools & Safety Equipment!

Included Items Item Description Shipping Info Payment Info

* Trimble R8 Model 4 GNSS Receiver P/N: 83745-66 w/ Options... [ID- X2390-L/T*]
         - CMR Inputs
         - CMR Outputs
         - RTCM Inputs
         - RTCM Outputs
         - Data Collector
         - Binary Outputs
         - Data Logging
         - Bluetooth
         - L2CS
         - UHF Transmit
         - Cellular
         - L5
         - Enable GLONASS
         - Enable Webserver
         - Login Required
         - Enable Compass/BeiDou
         - Enable Galileo
         - Max Data Rate 20 Hz
         - 450 - 470 MHz Radio P/N: 64235-66
* Li-ION Battery Charger w/ AC Adapter
* Antenna
* Battery Pack
* RS232 PC Interface Cable
* User Manual On Cd-ROM
* Hard Carrying Case


Condition: Refurbished


Warranty: 90 Day Exchange

 Trimble R8 Model 4 GPS GLONASS Galileo & Compass/BeiDou 450-470 MHz Base Or Rover w/ Options...
- CMR Inputs
- CMR Outputs
- RTCM Inputs
- RTCM Outputs
- Data Collector
- Binary Outputs
- Data Logging
- Bluetooth
- L2CS
- UHF Transmit
- Cellular
- L5
- Enable GLONASS
- Enable Webserver
- Login Required
- Enable Compass/BeiDou
- Enable Galileo
- Max Data Rate 20 Hz
- 450 - 470 MHz Radio P/N: 64235-66

 

 

 

Trimble R8 Model 4 GNSS Receiver
The receiver incorporates a GNSS antenna, receiver, internal radio with a transmit option or an internal GSM module, and a battery in a rugged light-weight unit that is ideally suited as an all-on-the-pole RTK rover. Three LEDs allow you to monitor the satellite tracking, radio reception, data logging status, and power. Bluetooth wireless technology provides cable-free communications between receiver and controller.

  • The circuitry in the Trimble R8 Model 4 GNSS receiver provides up to 440 channels for satellite tracking, and supports logging raw GNSS observables to the internal receiver memory or to a handheld controller for post processed applications.

The receiver is available as a standalone rover, base station, or as part of the GNSS Total Station® system, offering maximum versatility in the system configuration to meet your specific requirements.

The receivers provide the following features:

  • Future-proof Trimble 360 technology (Trimble R8 Model 4), which includes advanced Trimble Maxwell 6 Custom Survey GNSS chips with 440 channels and allows the receiver to track the following:
    • GPS: L1 C/A, L1C, L2C, L2E, L5
    • GLONASS: L1 C/A, L1P, L2 C/A, L2P, L3
    • Galileo: E1, E5A, E5B
    • BeiDou (COMPASS): B1, B2
    • SBAS: QZSS, WAAS, EGNOS, GAGAS
  • Centimeter-accuracy, real-time positioning with RTK/OTF data, up to 20 Hz position updates (R8 Model 4) or up to 10 Hz (R6 Model 4 and R4 Model 3)
  • Submeter-accuracy, real-time positioning using pseudorange corrections
  • Automatic OTF (on-the-fly) initialization while moving
  • Single Lithium-ion rechargeable battery
  • Cable-free Bluetooth communications with Trimble controllers
  • Two RS-232 serial ports for:
    • Trimble Format (CMR, CMR+™ and CMRx) input and output
    • RTCM SC-104 input and output (RTCM 2.1, 2.3, 3.0, 3.1)
    • 23 NMEA outputs
    • GSOF, RT17, and RT27 outputs
    • Supports BINEX and smoothed carrier
  • One TNC radio antenna connector
  • Internal memory for data storage



Specifications:

Feature Specification
Size 19.0 cm (7.5") wide x 10.4 cm (4.1") deep including connectors
Weight: with internal battery, radio, and standard antenna 1.52 kg (3.35 lbs)
Operating times on internal 2.6 Ah battery (varies with temperature) 450 MHZ receive only - 5 hours 450 MHz receive/transmit: 2.5 hours (varies with wireless data rate) GSM: 4.7 hours
Power input 11–28 V DC with over-voltage protection on port 1 (7-pin lemo)
Operating temperature –40 °C to +65 °C (–40 °F to +149 °F)
Storage temperature –40 °C to +75 °C (–40 °F to +167 °F)
Humidity 100% condensing, unit fully sealed
Casing Water/dustproof IP67 dustproof, protected from temporary immersion to depth of 1 m (3.28 ft)
Positioning specifications
Feature Specification
Positioning performance
Code differential GNSS positioning Horizontal: 0.25 m + 1ppm RMS
Vertical: 0.50 m + 1ppm RMS
SBAS differential positioning accuracy: typically <5 m 3DRMS
Static GNSS surveying
High-precision static
Horizontal 3 mm + 0.1 ppm RMS
Vertical 3.5 mm + 0.4 ppm RMS
Static and FastStatic
Horizontal 3 mm + 0.5 ppm RMS
Vertical 5 mm + 0.5 ppm RMS
Kinematic surveying
Postprocessed Kinematic (PPK) GNSS surveying
Horizontal 8 mm + 1 ppm RMS
Vertical 15 mm + 1 ppm RMS
Real-Time Kinematic Surveying
Horizontal 8 mm + 1 ppm RMS
Vertical 15 mm + 1 ppm RMS
Network RTK
Horizontal 8 mm + 0.5 ppm RMS
Vertical 15 mm + 0.5 ppm RMS
Initialization time typically < 8 seconds
Initialization reliability typically > 99.9%
Technical specifications
Tracking: Trimble R8 Model 4 GNSS receiver Advanced Trimble Maxwell 6 Custom Survey GNSS chips with 440 channels. Satellites simultaneously tracked:
  • GPS: L1 C/A, L1C, L2C, L2E, L5
  • GLONASS: L1 C/A, L1P, L2 C/A, L2P, L3
  • Galileo: E1, E5A, E5B
  • BeiDou (COMPASS): B1, B2
  • SBAS: QZSS, WAAS, EGNOS, GAGAN
Signal processing Advanced Trimble Maxwell 6 Custom Survey GNSS chip
Very low-noise GNSS carrier phase measurements with <1 mm precision in a 1 Hz bandwidth
Multipath suppression
Start-up Cold start: < 60 seconds from power on
Warm start: < 30 seconds with recent ephemeris
Initialization Automatic while moving or static
Initialization time Typically < 8 seconds
Initialization reliability Typically >99.9%
Communications Two RS-232 serial ports (Port 1, Port 2)
Baud Rates up to 115,200 bps
RTS/CTS flow control negotiation supported on port 2
Bluetooth communications through Trimble controller with Bluetooth support
Configuration Through user-definable application files or GPS Configurator
Output formats NMEA-0183: AVR; BPQ; DP; DTM; GBS; GGA; GGK; GLL; GNS; GRS; GSA; GST; GSV; HDT; LLQ; PJK; PJT; RMC, ROT; VGK; VHD; VTG; ZDA
GSOF (Trimble Binary Streamed Output)
RT17 and RT27 outputs, BINEX and smoothed carrier





We will attempt to ship your item(s) within 24 hours after payment has been received.

Many countries impose their own customs, duties, tariffs, taxes, etc. on items being shipped from a foreign country. We do not cover those cost's and we recommend that you contact your countries customs agency for that information.

We accept credit card payment transactions via the online checkout system! The checkout process is designed so that it communicates with the merchant to confirm that payment has been made and cleared. Other methods of payment are outlined through the online checkout process. Winning bidders must contact us within 3 days after auction close if special payment arrangements are needed.

  • Your payment is expected within 5 days after the auction close. Unpaid auctions will be forfeited after 5 days of the auction close and the Item(s) will be relisted for sale.

  • Items will be shipped within 24 hours (1 Business Day) upon receipt of payment from the winning bidder. (Certain orders may take longer for processing due to comprehensive final service inspections)

  • A Shipment Tracking number(s) will be provided to inform Buyers of their expected ETA (Estimated Time of Arrival). Tracking number(s) will be provided the same day as order shipment.

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