|RTK GNSS Receiver and Field Controller featuring 226 Channels with Universal Tracking|
Topcon Positioning System’s GRS-1 (Geodetic Rover System) is an all-in-one handheld GNSS receiver and field controller featuring Topcon's exclusive Vanguard chip technology, compass and optional built-in camera. Other features include internal L1 antenna for GIS and navigation uses, internal modem and optional external antenna for GNSS network compatibility, or instantly change to dual constellation for centimeter accuracy RTK. Even use your GRS-1 as a static post-processed receiver solution.
Most importantly, the GRS-1 provides flexibility to fit you and your jobs by providing an SD memory card slot for up to 1GB Flash memory, optional internal GSM or CDMA modem, wireless LAN connectivity, and Bluetooth® wireless technology. The bright, high-contrast touch screen with virtual keyboard makes using Topcon's MAGNET or Pocket-3D software quick and easy.
Vanguard technology is Topcon’s new, cutting edge 226-channel ASIC tracking all current and upcoming GNSS constellations and signals with superior performance, accuracy and sensitivity.
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|Number of Channels||226 Universal Channels|
|CORS Beacon||Yes with BR-1|
|DGPS Accuracy||50cm HRMS|
|L1 Static Function||
H: 3mm + 0.8ppm (x baseline length)
V: 4mm + 1.0ppm (x baseline length)
|L1, L2 Static Function||
H: 3mm + 0.5ppm (x baseline length)
V: 5mm + 0.5ppm (x baseline length)
|Real time RTK Accuracy||
H: 10mm + 1.0ppm
V: 15mm + 1.0ppm
|Office Software (post processing)||Topcon Tools™, SurveyMaster|
|Operating System||Windows® Mobile 6.1|
|Data Update/Output Rate||1Hz – 100Hz Selectable*|
|GNSS Receiver||GPS + GLONASS|
|Cellular Capability||Internal GSM or CDMA**|
|Input/Output||Bluetooth®, USB, Serial, ANT, and Power|
|Wireless LAN Connectivity||Standard (Internal, 802.11.b)|
|Magnetic Compass||Internal, 4 degree accuracy|
|Expansion Connector||Weatherproof Communication Port|
|Battery Life||5 hrs while in GPS static mode|
|Battery Type||2500mAh Removable, Li-Ion Rechargeable|
|Dimensions||3.54"w x 8.46"h x 2.08"d (90mm x 215mm x 53mm)|
|Weight||1.5 lbs (0.7kg)|
|Display||3.7” VGA LCD|
|Built-in Camera||2.0 Megapixel|
|Keyboard||3 Key plus Virtual Keyboard|
|Operating Temperature||-20° to 50°C|
|Operating with camera||-10° to 50°C|
|Storage Temperature||-30° to 60°C|
*Data rates from 10 - 100hz and higher available as option
**GSM/CDMA available as factory options
† RMS Value unless otherwise specified. Accuracy will vary depending on the number of satellites used, obstructions, satellite geometry (PDOP), occupation time, multipath effects, and atmospheric conditions. Performance may be degraded in conditions with high Ionospheric activity, extreme multipath, or under dense foliage. For maximum system accuracy, always follow best practices for GNSS data collection.