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Product Description
The system is lightweight, ergonomically designed, does not use cables, and together with the popular, robust and reliable Trimble Recon controller and Trimble Digital Fieldbook software, forms an easy-to-use integrated receiver. The system is built on the proven Trimble GPS technology, with standard support for GPS L1 and L2, and can be upgraded to support GLONASS. For 25 years, Trimble GNSS solutions have been at the forefront of GNSS development, and their features are highly welcomed by surveyors - high accuracy, good stability, and durability. The Trimble R4 GPS and Trimble Digital Fieldbook software are undoubtedly the most ideal choices for operating under the harshest conditions, providing precise results at every point. The Trimble R4 GPS system, which is precise, reliable, and durable, is built upon Trimble's proven reliable technology. It has multiple configurations ranging from post-processing to VRS rover stations to multi satellite RTK.
Performance specification measurement | ||
Trimble R-Track ™ technology | ||
Advanced Trimble Maxwell ™ 5 Custom Survey GNSS chips with 72 channels | ||
High precision multi correlator for GNSS pseudorange measurement | ||
Non filtered, non smooth pseudorange measurement data, low noise, low multipath error, low time-domain correlation, and high dynamic response | ||
Ultra low noise GNSS carrier phase measurement, 1Hz sampling rate accuracy<1mm | ||
Signal to Noise Ratio (dB Hz) | ||
Trimble low altitude angle satellite tracking technology that has been tested in practice | ||
Synchronized tracking of satellite signals |
A11GPS: L1C/A, L2C, L2E (Trimble L2P tracking method) GLONASS: L1C/A, L1P, L2C/A (GLONASS M only) L2P —SBAS: L1C/A |
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Coding differential GNSS positioning | ||
level |
0.25m+1ppm RMS |
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vertical |
0.50m+1ppm RMS |
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WAAS differential positioning accuracy |
Typical<5m 3DRMS |
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Static and fast static GNSS measurements | ||
level |
3mm+0.1ppm RMS |
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vertical |
3.5mm+0.4ppm RMS |
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dynamic measurement | ||
level |
10mm+1ppm RMS |
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vertical |
20mm+1ppm RMS |
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Initialization time |
Typical<25 seconds |
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Initialize reliability |
Typical>99.9% | |
Hardware | ||
Size (W × H) |
19cm x 10.9cm, including connector |
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weight |
1.34kg, including built-in battery, built-in wireless modem, and standard UHF antenna 3.70kg, whole RTK mobile station, including battery, benchmark, controller, and installation bracket |
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| temperature | ||
work |
－40℃~+65℃ |
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keep in storage |
－40℃~+75℃ | |
humidity |
100%, condensation |
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Dustproof and Waterproof |
IP67 |
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Anti impact and shock resistance | ||
Impact resistance |
When not working, falling from a 2-meter-high benchmark onto a cement floor without damage | |
During operation, maximum 40G, 10 milliseconds, sawtooth | ||
Earthquake resistance |
MIL-STD-810F,FIG.514.5C-1 | |
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