South ALPS1 Laser Vision IMU RTK GNSS Receiver

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The South ALPS1 is a professional RTK GNSS receiver built for surveyors, construction teams, GIS users, forestry workers and drone mapping crews who need accurate positioning in difficult field conditions. With laser measurement, visual positioning, AR stakeout and 60° IMU tilt compensation, it helps users measure points that are unsafe, hard to reach or affected by weak satellite visibility.

South ALPS1 Highlights

GNSS Channels 1698 channels
Laser Surveying 3R green laser with up to 30 m working range
IMU Tilt Calibration-free IMU with up to 60° tilt compensation
Vision Features 8 MP video shooting camera and 2 MP AR stakeout camera
RTK Accuracy RTK NTRIP accuracy up to H: 8 mm + 0.5 ppm RMS, V: 15 mm + 0.5 ppm RMS

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Buyer protection and warranty included
Speak with a specialist +31 035 205 7939
Global GPS Systems
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4.73 store rating (575 reviews) | 4.68 product rating

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Description

South ALPS1 Laser Vision IMU RTK GNSS Receiver

The South ALPS1 is an advanced RTK GNSS receiver designed for field teams that need more than standard pole-based measurement. It combines high-precision GNSS positioning with visual positioning, laser measurement, AR stakeout and IMU tilt compensation. In practical fieldwork, this means you can measure more points from safer positions, work around obstacles more easily and complete stakeout tasks with clearer guidance on the controller screen.

This receiver is a strong fit for surveyors, construction professionals, GIS teams, forestry users, UAV mapping crews and infrastructure contractors. It is especially useful on sites where traditional RTK measurement becomes slow or awkward, such as roadsides, embankments, tree-covered areas, narrow spaces, under roof edges, near water or around buildings that block satellite signals.

Measure difficult points with laser and visual positioning

The South ALPS1 uses a 3R green laser to measure target points without placing the pole directly on every point. For construction and surveying teams, this is useful when the point is across a ditch, near traffic, behind an obstacle or in a location where it is unsafe or impractical to stand. The laser also helps in tighter spaces where moving the pole into position takes too much time.

Visual positioning adds another layer of flexibility. The ALPS1 can use image and video data to help capture coordinates for multiple points. Instead of walking to every point individually, users can document the scene and extract measurements more efficiently. This can be valuable for accident scenes, excavation records, urban utility work, road measurements and areas where access is limited.

AR stakeout for clearer field guidance

Stakeout can be one of the most time-consuming parts of fieldwork, especially for less experienced operators or on busy construction sites. The South ALPS1 supports CAD AR stakeout, using its cameras to show design information in relation to the real-world scene. This makes it easier to understand direction, approach the target and complete stakeout work with fewer repeated checks.

The front camera helps users find the general direction from a distance, while the lower camera supports more precise guidance when approaching the final point. For construction layout, road work, utilities and site preparation, this can make the workflow more intuitive than relying only on arrows and numbers.

60° IMU tilt for faster measurements

The built-in calibration-free IMU allows tilted measurements up to 60°. This helps users keep working when the pole cannot be held perfectly vertical, for example near walls, fences, slopes, parked machinery, tree trunks or other obstructions. In day-to-day use, tilt compensation reduces the need to constantly level the pole, helping crews collect points faster while maintaining reliable RTK positioning.

Built for demanding GNSS environments

With 1698 channels and support for GPS, GLONASS, BeiDou, Galileo, SBAS, IRNSS and QZSS signals, the South ALPS1 is designed to maintain strong satellite tracking in varied environments. This is important for users working in urban areas, near buildings, under partial canopy or in changing site conditions where satellite visibility is not always ideal.

The receiver supports RTK through UHF radio and NTRIP, making it suitable for both base-rover workflows and network RTK use. Its internal UHF radio supports 410–470 MHz operation and Farlink protocol, while the 4G modem allows connection to correction services through mobile data. For crews that move between open sites, urban projects and remote locations, this gives flexible ways to receive corrections.

Practical applications

For construction teams, the ALPS1 can support road measurements, site layout, volume-related measurements and general topographic work. The laser function is useful when measuring from a safe distance or when direct access to a point is limited.

For forestry and environmental work, the combination of laser measurement, eccentric measurement and positioning tools can help record tree positions and features without needing to place the pole directly at every point. This can save time in uneven or obstructed terrain.

For UAV mapping and 3D modelling workflows, the South ALPS1 can be used to measure control points, fill data gaps and support field measurements that complement drone data. This makes it useful for drone pilots and mapping teams that need accurate ground data alongside aerial imagery.

Rugged receiver for daily field use

The South ALPS1 is built with a magnesium aluminium alloy shell and IP68-rated protection against dust and water. It is designed for outdoor surveying environments where equipment may face rain, dust, mud, transport vibration and regular field handling. The integrated battery supports long operating times, helping crews complete full work sessions without constantly changing batteries.

Why buy the South ALPS1 from Global GPS Systems

Global GPS Systems supplies professional GNSS equipment to surveyors, contractors, engineers, GIS professionals and drone mapping users worldwide. When choosing a receiver like the South ALPS1, buyers often need more than a specification list. They need to know whether the instrument fits their workflow, correction setup, software and field conditions.

Global GPS Systems can help you compare the South ALPS1 with other RTK GNSS receivers, select suitable accessories and understand how features like laser surveying, AR stakeout, IMU tilt and NTRIP corrections apply to your work. This makes the ALPS1 a strong choice for users who want a modern GNSS receiver with practical tools for faster and safer measurement in the field.

Datasheets & Manuals

Datasheets and manuals

Specifications

South ALPS1 Specifications

Product Overview

Product Name South ALPS1
Product Type Total RTK GNSS receiver with visual positioning, laser measurement, IMU tilt compensation and remote stakeout functions
Manufacturer SOUTH Surveying & Mapping Technology Co., Ltd.
Model ALPS1
Primary Users Land surveyors, construction survey teams, forestry surveyors, UAV mapping teams, GIS and geospatial professionals
Typical Applications RTK surveying, control surveys, construction measurement, forestry measurement, UAV ground supplementation, 3D modeling, CAD AR stakeout, laser stakeout and remote point measurement

Key Measurement Features

Visual Positioning Supports image and video-based coordinate acquisition for points that are difficult to measure with traditional RTK methods
Video Shooting Measurement Captures photos or videos for coordinate calculation and 3D modeling workflows
Laser Measurement Supports non-contact point measurement, laser distance survey, laser point survey and laser stakeout
Remote Measurement Supports measurement of targets that are difficult, unsafe or inconvenient to access directly
AR Stakeout Supports augmented-reality stakeout using camera guidance and CAD integration
CAD AR Stakeout Supports overlay of CAD drawing content with real-world scenes for visual stakeout guidance
3D Modeling Support Image measurement data can be used with SOUTH software and compatible third-party modeling workflows
Laser Intersection Function Supports direct rendezvous and point-library rendezvous intersection methods for laser survey workflows

GNSS Tracking

Channels 1698
GNSS Board / Engine SOUTH S805 GNSS technology
GPS L1C, L1C/A, L2C, L2P(Y), L5
GLONASS G1, G2, G3
BeiDou / BDS B1I, B2I, B3I, B1C, B2a, B2b
Galileo E1, E5a, E5b, E6, AltBOC*
SBAS L1*
IRNSS L5*
QZSS L1, L2C, L5*
MSS L-Band BDS-PPP, Galileo-HAS
Positioning Output Rate 1 Hz to 20 Hz
Initialization Time < 10 seconds
Initialization Reliability > 99.99%

Positioning Accuracy

Mode Horizontal Accuracy Vertical Accuracy
Code Differential GNSS 0.25 m + 1 ppm RMS 0.50 m + 1 ppm RMS
GNSS Static 2.5 mm + 0.5 ppm RMS 3.5 mm + 0.5 ppm RMS
Static Long Observation 2.5 mm + 0.1 ppm RMS 3 mm + 0.4 ppm RMS
Rapid Static 2.5 mm + 0.5 ppm RMS 5 mm + 0.5 ppm RMS
PPK 3 mm + 1 ppm RMS 5 mm + 1 ppm RMS
RTK UHF 8 mm + 1 ppm RMS 15 mm + 1 ppm RMS
RTK NTRIP 8 mm + 0.5 ppm RMS 15 mm + 0.5 ppm RMS

Laser, IMU and Tilt Measurement

Laser Type 3R green laser
Laser Working Range 30 m
Laser Accuracy 3 cm within 10 m, 5 cm within 20 m, or 1 cm + 2 mm/m
Laser Survey Functions Laser distance survey, laser point survey, laser AR, laser intersection and laser stakeout
IMU Built-in calibration-free IMU module
IMU Accuracy 8 mm + 0.7 mm/° tilt
IMU Tilt Angle Optimal accuracy within 120°
Electronic Bubble Controller software can display electronic bubble and check pole leveling status in real time

Cameras and Visual Functions

Video Shooting Camera 8 MP camera; can also be used in AR stakeout
AR Stakeout Camera 2 MP camera
Dual-Camera Stakeout Front camera assists with general direction and surrounding features; bottom camera assists with precise stakeout near the target
Photogrammetry Support Supports image and video-based calculation workflows
Offline / Local Solution Support Supports local photogrammetry solution without uploading images or videos to a server when internet access is unavailable
UAV Mapping Support Can supplement UAV image data and help fill ground-level detail gaps for 3D modeling

Hardware

Dimensions 134 mm diameter × 79 mm height
Weight 860 g, battery included
Material Magnesium aluminum alloy shell
Operating Temperature -45°C to +75°C
Storage Temperature -55°C to +85°C
Humidity 100% non-condensing
Waterproof / Dustproof Rating IP68 standard
Shock / Vibration Withstands a natural 2 m pole drop onto cement ground
Power Supply 6–28 V DC with overvoltage protection
Battery Built-in 7.4 V 6800 mAh rechargeable lithium-ion battery

Battery Life

Static Mode Up to 25 hours
UHF RTK Rover Without Camera Up to 20 hours
Laser Survey Up to 15 hours
Visual Stakeout Up to 15 hours
UHF RTK Base Up to 12 hours

Communications and Connectivity

I/O Ports 5-pin LEMO interface for external power and RS232; Type-C interface for charging, OTG and Ethernet; UHF antenna interface
Internal UHF Radio 2 W radio transmit and receive
UHF Frequency Range 410–470 MHz
UHF Protocols Farlink, Trimtalk, SOUTH, HUACE, Hi-target, Satel
UHF Communication Range Typically 8–10 km with Farlink protocol; 12–15 km in optimal conditions
Bluetooth Bluetooth 5.0, Bluetooth 3.0/4.2 standard, Bluetooth 2.1 + EDR
NFC Communication Supported
Wi-Fi 802.11 b/g/n standard
Internet Modem 4G listed configuration
Web UI Access Receiver status monitoring and configuration via Wi-Fi or USB connection
NTRIP Support Fully supports NTRIP protocol
Network Model Support VRS, FKP and MAC

Data Storage and Data Formats

Internal Storage 16 GB SSD internal storage
Automatic Cycling Storage Supported
External USB Storage Supported via OTG
Custom Sample Interval Up to 20 Hz
USB Data Transmission Plug-and-play USB data transmission
FTP / HTTP Download Supported
Static Data Formats STH, RINEX 2.01, RINEX 3.02 and other formats
Differential Data Formats RTCM 2.1, RTCM 2.3, RTCM 3.0, RTCM 3.1, RTCM 3.2
GNSS Output Formats NMEA 0183, PJK plane coordinate, binary code
Observation Data Interface OpenSIC observation data format and interaction interface definition available for secondary development

Sensors

IMU Sensor Built-in calibration-free IMU module
Camera Sensors 8 MP video shooting / visual positioning camera and 2 MP AR stakeout camera
Laser Sensor 3R green laser with 30 m working range
Electronic Bubble Supported through controller software
Thermometer Built-in thermometer sensor with intelligent temperature-control technology for monitoring and adjusting receiver temperature

User Interface and Software Functions

Operating System Linux
Buttons Dual buttons
Indicators Satellite, data and power indicators
Display 1.14 inch display, 135 × 240 pixels
Voice Guidance Chinese, English, Korean, Spanish, Portuguese, Russian, Turkish, French, Italian and Arabic
Secondary Development Provides secondary development package and opens the OpenSIC observation data format and interaction interface definition
Cloud Service Supports online services such as remote management, firmware updates and online registration
Compatible Field Software Designed for use with SOUTH field software such as SurvStar for RTK, AR stakeout, photogrammetry and laser survey workflows

Supported Survey Workflows

Control Survey Supports high-precision static measurements for control and deformation observation tasks
Highway Survey Supports control point densification, road topographic mapping, cross-section measurement and profile measurement workflows
CORS / NTRIP Operation Supports network correction workflows using NTRIP and common network RTK models
Data Acquisition Supports field data collection with SOUTH measurement software
Stakeout Supports point, line and plane stakeout plus AR, CAD and laser stakeout workflows
Power Line Measurement Supports orientation, ranging and angle calculation workflows
Marine Applications Can be used for positioning support in marine surveying workflows such as dredging and piling operations
Forestry Supports tree-position and trunk-center measurement workflows using laser and eccentric measurement methods
UAV Mapping Supports ground image measurement and control point supplementation for UAV-derived 3D models

Package / Accessory References

Item Quantity Notes
ALPS1 Receiver 1 Main GNSS receiver unit
Instrument Case Configuration dependent Hard case with internal anti-collision foam referenced in the user manual
Charger / PD Adapter Configuration dependent Used for charging the internal battery via Type-C cable
Type-C Cable Configuration dependent Used for charging, static data transmission, Web UI access and firmware update
UHF Antenna Configuration dependent Required when using the receiver in internal UHF mode
Other Survey Accessories Configuration dependent May include items such as carbon fiber pole, controller bracket, connector or tribrach depending on kit configuration

Specifications and package contents may vary by configuration, region or manufacturer update. Always check the current configuration before ordering.

FAQ

South ALPS1 FAQ

Product Overview

What is the South ALPS1?

The South ALPS1 is a professional RTK GNSS receiver designed for high-precision surveying. It combines traditional GNSS positioning with visual positioning, laser measurement, AR stakeout and CAD-assisted stakeout in one field-ready system.

Who is the South ALPS1 designed for?

The South ALPS1 is designed for land surveyors, construction survey teams, forestry professionals, UAV mapping specialists, engineers and geomatics users who need fast and accurate point collection in both open and challenging environments.

What makes the South ALPS1 different from a standard RTK GNSS receiver?

Unlike a standard RTK receiver, the South ALPS1 adds video-based measurement, laser measurement, AR stakeout and CAD integration. This allows users to measure points remotely, work around obstructions and complete stakeout tasks with more visual guidance.

Which industries commonly use the South ALPS1?

The South ALPS1 is suitable for land surveying, construction, infrastructure, forestry, UAV mapping, road surveys, topographic mapping, control surveys and 3D modelling support.

Can the South ALPS1 be used for everyday land surveying?

Yes. The South ALPS1 can be used for conventional RTK surveying as well as more advanced workflows such as visual positioning, laser survey, AR stakeout and CAD-based field layout.

GNSS, RTK and Accuracy

How many GNSS channels does the South ALPS1 have?

The South ALPS1 has 1698 GNSS channels, helping it track multiple satellite signals for reliable positioning in professional survey applications.

Which satellite constellations does the South ALPS1 support?

The South ALPS1 supports major GNSS constellations including GPS, GLONASS, BeiDou and Galileo. It also supports additional satellite signals such as SBAS, IRNSS, QZSS and MSS L-Band options depending on availability and configuration.

Does the South ALPS1 support RTK corrections?

Yes. The South ALPS1 supports RTK corrections through both UHF radio and NTRIP network correction workflows, making it suitable for rover, network RTK and base-rover field setups.

What RTK accuracy can the South ALPS1 achieve?

The South ALPS1 specification lists RTK accuracy at 8 mm + 1 ppm horizontal and 15 mm + 1 ppm vertical when using UHF RTK, and 8 mm + 0.5 ppm horizontal and 15 mm + 0.5 ppm vertical when using NTRIP RTK. Actual accuracy can vary with site conditions, satellite geometry, corrections and workflow.

Does the South ALPS1 work in weak GNSS signal areas?

The South ALPS1 is built to support challenging survey environments. Its multi-constellation GNSS tracking, IMU, camera and laser functions help users continue measuring in places where standard RTK workflows may be slower or more difficult.

Can the South ALPS1 be used with NTRIP correction services?

Yes. The South ALPS1 supports NTRIP and can work with correction methods such as VRS, FKP and MAC when supported by the correction service and field software.

Laser, Camera and Stakeout Functions

What is the laser measurement function used for?

The laser measurement function allows users to measure target points remotely. This is useful when a point is difficult, unsafe or inconvenient to reach directly with a survey pole.

What is the laser working range of the South ALPS1?

The South ALPS1 uses a 3R green laser with a listed working range of up to 30 metres. Practical performance can depend on the target surface, lighting and field conditions.

Can the South ALPS1 measure points without standing directly on them?

Yes. The laser and visual positioning functions allow remote point measurement, which can reduce the need to physically occupy every point in the survey area.

How does visual positioning help in the field?

Visual positioning allows the receiver to use image or video data to obtain coordinates for multiple points. This can speed up data collection and help measure areas that are obstructed, difficult to access or unsuitable for direct pole measurement.

Does the South ALPS1 support AR stakeout?

Yes. The South ALPS1 supports AR stakeout using its camera system, helping users navigate toward stakeout points with visual guidance in the field.

Can the South ALPS1 work with CAD drawings for stakeout?

Yes. The South ALPS1 supports CAD AR stakeout workflows, allowing CAD drawing content to be integrated with the real-world field view for more intuitive stakeout.

How many cameras does the South ALPS1 have?

The South ALPS1 includes an 8MP video shooting camera and a 2MP AR stakeout camera. These cameras support visual measurement, AR stakeout and CAD-assisted field workflows.

Field Performance, Connectivity and Data

Is the South ALPS1 waterproof and dustproof?

Yes. The South ALPS1 has an IP68 waterproof and dustproof rating, making it suitable for demanding outdoor surveying environments.

How durable is the South ALPS1?

The South ALPS1 has a magnesium-aluminium alloy shell and is specified to withstand a natural 2 metre pole drop onto cement ground, helping protect it during field use.

How long does the South ALPS1 battery last?

The listed battery life is up to 25 hours in static mode, up to 20 hours as a UHF RTK rover without camera use, up to 15 hours for laser survey or visual stakeout, and up to 12 hours as a UHF RTK base. Battery life depends on settings, usage and field conditions.

What connectivity options does the South ALPS1 support?

The South ALPS1 supports UHF radio, Bluetooth, NFC, Wi-Fi/Web UI access, Type-C connection, external power and data interfaces. It also supports NTRIP workflows for network RTK corrections.

What is the UHF radio range of the South ALPS1?

The South ALPS1 specification lists a typical Farlink UHF communication range of 8 to 10 km, with up to 12 to 15 km possible in optimal conditions. Actual range depends on terrain, antenna setup, interference and local radio conditions.

What data formats does the South ALPS1 support?

The South ALPS1 supports common professional survey data formats including RINEX, RTCM and NMEA 0183, along with other receiver and coordinate output formats used in GNSS workflows.

Can the South ALPS1 be configured through a Web UI?

Yes. The South ALPS1 can be accessed through a Web UI via Wi-Fi or USB connection, allowing users to monitor receiver status and change receiver configurations.

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Reviews (1)

1 review for South ALPS1 Laser Vision IMU RTK GNSS Receiver

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  1. Matthew Bosci (verified owner)

    Verified reviewVerified review - view originalExternal link

    Has good functions, like it!

    (0) (0)

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This product is Available

Contact our experts for the best possible price and configuration.

Why choose Global GPS Systems?
European support & worldwide delivery
Worldwide shipping from the Netherlands
100% insured shipping against loss or damage
Import, export, tax and duties support
Expert support from product specialists
Buyer protection and warranty included
Speak with a specialist +31 035 205 7939
Global GPS Systems
Independently verified
4.73 store rating (575 reviews) | 4.68 product rating
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575 reviews