Features
GRS-1
World's First all-in-one, handheld, dual frequency GNSS Receiver and Field Controller
- Smallest, lightest RTK rover receiver
- 1cm RTK accuracy
- Dual-frequency, 72 channel GPS + GLONASS receiver
- Fastest receiver—100Hz
- Integrated cell phone (GSM, CDMA)
- 806MHz XScale Processor
- Bright, touch screen display
- Integrated camera & compass
- Windows® Mobile 6.1 Operating System
- Built-in Bluetooth® wireless technology and Wireless LAN connectivity
Topcon, the company that brought you the first integrated GPS receiver now brings you the first fully integrated handheld GNSS receiver and field controller!
Small & Lightweight Design—ideal network rover
Scalable & Expandable—handheld or on-the-pole
Multi-function—survey/map/navigate/communicate
Topcon’s new GRS-1 (Geodetic Rover System) is the world’s first fully integrated dual constellation network enabled RTK rover system. It is an all-in-one handheld GNSS receiver and field controller featuring high-speed processor, increased memory, built-in camera and digital compass. Also integrated are an SD memory card slot, optional internal GSM or CDMA modem, and wireless connectivity via Wireless LAN and Bluetooth® wireless technology.
The GRS-1 achieves three primary and evolutionary goals for a GNSS receiver: small size, minimal weight, and affordability. It provides DGPS capability via an internal L1 antenna, perfect for the GIS and navigation space. Instantly move to centimeter RTK accurate dual frequency / dual constellation GNSS by simply adding a carbon-fiber pole with Topcon’s PGA-1 external antenna then connect to your local GNSS network via the internal modem. As an added benefit, the GRS-1 can also be used as a static post processed receiver system.
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Built-in 2.0 Megapixel Camera That's right, the GRS-1 comes with a 2.0 megapixel camera with autofocus for taking pictures. Store photos on-board with the 1GB of Flash memory or use the external SD card slot for additional memory. |
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Internal Magnetic Compass Utilizing compass bearing with GNSS positioning, the magnetic compass allows for additional measurements to be taken from a single location. |
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Extra Memory With 1GB Flash standard, the GRS-1 is loaded with memory. But if you need more, the SD card slot and the mini USB Host functionality can provide additional memory. Use the USB mini port as both a Host and Client. This functionality allows for expanded memory and easy file transfer through USB flash drives or SD memory cards. |
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Expansion Connector Weatherproof expansion port allows for the addition of the RH-1 unit. The RH-1 will allow the GRS-1 to communicate with radio based base stations for RTK operation. It is compatible with all previous radio types that are currently in use with Topcon GNSS systems. This includes Digital UHF, Spread Spectrum, and FCS enabled UHF radios from all previous Topcon systems. |
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Bluetooth® and Wireless LAN Built-in Bluetooth wireless technology and Wireless LAN connectivity come standard. No need for expensive upgrades or CF cards. Use your device in a typical Hotspot to surf the web, check weather or e-mail files back to the office. When not in use, Topcon also provides a way to turn Bluetooth and Wireless LAN off to conserve battery power |

Nothing pairs with a Topcon Field Controller better than Topcon’s TopSURV 8!…
TopSURV 8 Field Controller Software
for Surveying and Data Collection
TopSURV 8 is a whole new experience from field to finish. From its all-new, super-efficient database engine to its near-universal exporting abilities, 7 delivers the power to simplify and speed your data collection and delivery.
Speed, GUI, and a feel for the road
The new engine has cut file sizes by an amazing 60%, but that’s just what’s under the hood. Its new graphical user interface and intuitive operation are where the rubber meets the road. Icon driven, with no more than four clicks to get to any operation, 8 helps you quickly negotiate the trickiest turns—both on the controller and onboard. Real-time re-computation of recorded data puts an end to time-wasting pit stops.
Advanced Import/Export, Coding, and Setup
Stock or custom, 8 supports all major file formats and lets you visually create custom codes and ordering to insure a perfect transfer every time. Its new station offset and string list features bring added versatility and efficiency to setup and operation.
Features include:
- Large Graphical User Interface (GUI)
- Intuitive User Interface
- Graphical Stakeout
- Map View Data Collection
- Fast Job Management and Storage
- Integrated Camera Function

…and when you get back to the office, Topcon has you and your data covered!
Topcon Tools Post-Processing
and adjustment software
Topcon Tools software provides a powerful post-processing solution, network analysis and adjustment with an intuitive operator interface that's easy to learn and use. Version 6.04 further expands the already diverse modular functionality with a new 'Imaging' module to support our newest line of optical imaging products. Impressive data automation routines take much of the hassle out of GPS processing and get you the right answer fast!
Features Include:
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GIS High Accuracy module
- GIS Professional bundles the GIS module with High Accuracy module
- Imaging Module
- Easy-to-use graphical interface
- Topcon GPS+ data processing with direct import from Topcon receivers using Topcon Link™
- Expanded features on Design Module include DTM edits, Advanced layer control, and more
- Advanced Processing module enhanced
- Additional background image support (Mr.SID…)
- Expanded import and export for Autodesk

SurveyMaster Office Software
CAD solution and field-to-finish drafting
Control your survey data with SurveyMaster - whether in a deeded boundary survey or a construction site. SurveyMaster was designed by surveyors for surveyors and stands alone in ease of use and seamless integration with Topcon field equipment.
- Complete Desktop Survey Solution
- Field to Finish Topcon Solution
- Synchronization with TopSURV 7
- Program is transportable – USB Key
- Finished Plat Printing
- Land Survey Functions
- Contouring and Surface File Editing
- Volume analysis
- Standalone performance
Specifications
| Specifications | |
| Tracking | |
| Number of Channels | 72 GPS + Glonass L1/L2 tracking |
| WAAS/EGNOS | Yes |
| CORS Beacon | Yes with BR-1 |
| Accuracy | |
| DGPS Accuracy | 50cm HRMS |
| L1, L2 Static Function |
H: RMS 3mm + 0.8ppm V: RMS 4mm + 1.0ppm |
| Real time RTK Accuracy |
H: 10mm + 1.0ppm V: 15mm + 1.0ppm |
| Software | |
| Onboard Software | TopSURV |
| Office Software (post processing) | Topcon Tools™, SurveyMaster |
| Internal | |
| Microprocessor | XScale PXA320 |
| Processor Speed | 806MHz |
| Operating System | Windows® Mobile 6.1 |
| Memory |
256MB SDRAM 1GB Flash |
| USB | Mini Port |
| Card Slot | SD |
| 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 |
| Physical | |
| Dimensions | 7.76” x 3.54” x 1.81” (197 x 90 x 46mm) |
| Weight | 1.5 lbs (0.7kg) |
| Display | 3.7” VGA LCD |
| Built-in Camera | 2.0 Megapixel |
| Keyboard | 3 Key plus Virtual Keyboard |
| Environmental | |
| Waterproof | IP66 |
| Drop | 1 meter |
| Operating Temperature | -20° to 50°C |
| Operating with camera | -10° to 50°C |
| Storage Temperature | -30° to 60°C |
Video
Fast-paced promotional video highlighting the main features of Topcon’s World's First all-in-one, handheld, dual frequency GNSS Receiver and Field Controller, the GRS-1.








