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Ashtech ProMark 120 Receiver with L1/L2 GPS/GLONASS 990664-13

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  • High-precision measurement

  • On-board ProMark Field Software

  • Fast RTK fix

  • 1 cm accuracy


  • L1/L2 Antenna

  • Windows Embedded 6.5 operating system 

  • Built-in wireless communication 

  • Extended memory and battery 

Availability: In stock


Overview for the Ashtech ProMark 120 Receiver with L1/L2 GPS/GLONASS

The Ashtech ProMark 120 Receiver from Spectra allows survey professionals to quickly and accurately map locations for efficient land survey, RTK, GNSS and even GIS applications. As an upgrade to the ProMark 100, this survey GPS contains an external ASH661 L1/L2 antenna that can track both GPS and GLONASS signals, on-board field software, Windows programs and upgradeable options such as NTRIP/DIP, RTK and GLONASS, for a versatile survey solution.

Spectra’s Updated Blade Technology

The Ashtech Z-Blade technology on board the ProMark 120 uses both GPS and GLONASS satellites to obtain a GNSS position in obstructed survey sites. This updated Spectra-exclusive technology not only increases accuracy, it also allows the device to get a real time kinematic (RTK) fix even if there are no GPS satellites available.  

Extended Range and Accuracy

When utilizing the included ASH661 external antenna, the ProMark 120 can obtain an RTK fix with 1 cm accuracy in as fast as 15 seconds. With a typical range of up to 25 miles, it can measure wide areas and triangulate horizontal And vertical positions. 

On Board ProMark Field Software

The ProMark 120 comes with Ashtech ProMark Field software 3.0 for processing and analyzing GNSS survey data. This intuitive, user-friendly software provides all the necessary tools for post-processing survey data as well as simple real time kinematics (RTK) jobs, including raw data recording, rover and base configurations, stake out and more.

Windows Mobile Operating System

Equipped with Windows Mobile 6.5 operating system, the ProMark 120 GNSS receiver comes with familiar software packages such as GNSS Toolbox, ActiveSync and Internet Explorer. In addition to wireless GPRS and Bluetooth connectivity, this survey grade GPS device has a built-in memory of 256 MB that is expandable up to 2GB. The GPS recievers' embedded OS also supports 10 different languages.

Proven Functionality

The Ashtech ProMark 120 surveying GPS has a protection rating of IP 65 that makes it dustproof and water resistant. This lightweight device has a built-in 3 megapixel camera, an E-Compass, microphone and speaker. It also features a simple alphanumeric touchscreen keyboard with 4-way navigation keys and a 240 x 320 pixels display that is readable even under direct sunlight.

The variety of upgradeable options available for the Ashtech ProMark 120, as well as the extended range of the included ASH661 L1/L2 antenna, makes the ProMark 120 one of the most versatile surveying GPS units available.

This product comes with a 1 year manufacturer’s warranty.

Features for the Ashtech ProMark 120 Receiver with L1/L2 GPS/GLONASS

  • High-precision measurement with the Ashtech Z-Blade technology
  • User-friendly and Intuitive ProMark Field Software
  • Fast RTK fix
  • RTK, NTRIP & Direct IP and GLONASS Options   
  • Extended productivity on very demanding or obstructed environments
  • L1/ L2 Antenna - can receive L2 frequencies
  • Windows Embedded 6.5 operating system for platform stability
  • Built-in wireless communication support
  • Extended memory and battery capacity
  • Lightweight and rugged handheld design
  • Water resistant with IP65
  • Alphanumeric touchscreen keyboard
  • 4-way navigation
  • Up to 99.9% reliability rate
  • 10 languages available
  • High resolution sunlight readable display
  • 3M pixels camera
  • E- Compass and G-sensor
  • Microphone and speaker

Specifications for the Ashtech ProMark 120 Receiver with L1/L2 GPS/GLONASS

Weight 1.43 lb (0.62 kg)
Warranty 1 year
Dimensions 7.5 in x 3.5 in x 1.7 in (190 mm x 90 mm x 43 mm)
Type Alphanumeric Virtual Keyboard
Touchscreen yes
Size 3.5 in
Keys 4-way navigation
Resolution 240 x 320 pixels
On-Board ProMark Field Software
Upgradeable yes
Operating -4ºF~140ºF (-20ºC~60ºC)
Storage -13ºF~158ºF (-25ºC~70ºC)
Battery Life 8 hrs
Power Source 6600 mAh Li-Ion
Charging Time 3 hours
Tracking Features
Satallites GPS / GLONASS / SBAS
Frequency Single (L1)
Channels 45
Antenna Internal / External
Time to First Fix 15 sec
Range 6.21 mi (10 km)
Mapping yes
Control Surveying yes
Topographic Survey yes
Cadastral Survey yes
Static Survey yes
Kinematic Survey yes
RTK H: 0.39 in + 1 ppm V: 0.79 in + 1 ppm (H: 10 mm + 1 ppm V: 20 mm + 1 ppm)
Static H: 0.2 in + 0.5 ppm V: 0.39 in + 0.5 ppm (H: 5 mm + 0.5 ppm V: 10mm + 0.5 ppm)
Post Processing H: 0.39 in + 1 ppm V: 0.79 in + 1 ppm (H: 10 mm + 1 ppm V: 20 mm + 1 ppm)
DGPS <11.81 in + 1 ppm (<30 cm + 1 ppm)
SBAS <19.68 in (<50 cm)
On-Board SDRAM 256MB
Expandable yes, up to 2GB
Raw Data Recording yes
Rover Configuration yes
Base Configuration yes
Post Processing yes
Stake Out yes
Network Connection Setting yes
Operating System
Type Microsoft Windows Embedded Handheld 6.5
Processor Marvell PXA 320
Communication Interface
Bluetooth yes
Cellular GPRS, EDGE, Quad-band
Wireless LAN 802.11b/g (SDIO slot)
Internal UHF Radio type
USB yes, through docking station
RS232 (9-pin serial adapter) yes
Operating System Programs
GNSS Toolbox yes
E-mail Client yes
Internet Explorer yes
Microsoft Office Mobile yes
Transcriber yes
ActiveSync yes
Advanced Features
Camera yes
Microphone yes
Speaker yes
Weather Protection IP 65 (dustproof and water resistant to any angle)
Shock Protection ETS300 019 / MIL-STD-810
E-Compass yes

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