SatLab Freyja GNSS RTK User manual

Freyja GNSS RTK System User Manual
Freyja GNSS RTK System
User Manual

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Revision Date
Revision Level
Description
September. 2021
1
Freyja GNSS RTK System
User Manual

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Freyja
GNSS RTK System User Manual

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Preface
Introduction
Welcome to the Satlab Freyja receiver. This introduction describes how to use this product.
Experience requirement
To help you use the Satlab series products better, Satlab suggests that you read the instructions
carefully. If you are unfamiliar with the products, please refer to www.satlab.com.se
Tips for safe use
Notice: The contents here are special operations and need your special
attention. Please read them carefully.
Warning: The contents here are generally very important as the wrong
operation may damage the machine. This can lead to the loss of data, or even
break the system and endanger your safety.
Exclusions
Before using the product, please read these operating instructions carefully, as they will help you to use
it better. Satlab Geosolutions AB. assumes no responsibility if you fail to operate the product according
to the instructions, or operate it wrongly because you have misunderstood them.
Satlab is committed to constantly perfecting the product’s functions and performance, improving its
service quality, and reserves the right to change these operating instructions without notice.
We have checked the contents of the instructions and the software & hardware without eliminating the
possibility of deviation. The pictures in the operating instructions are for reference only. In the case of
non-conformity with products, the products shall prevail.

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Technology and service
If you have any technical issues, please call the Satlab technology department for help, and we will
answer your question.
Relevant information
You can obtain this introduction by:
Purchasing Satlab products: this manual is found in the instrument container and will help you to operate
the instrument.
Logging on to the Satlab official website and downloading the electronic version of this introduction from
Partner Center:http://members.satlab.com.se//
Advice
If you have any suggestions for this product, please email them to: [email protected] Your feedback
information will help us to improve the product and service.

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Contents
Preface.....................................................................................................................................................................I
Introduction ..........................................................................................................................................................I
Experience requirement.....................................................................................................................................I
Tips for safe use..................................................................................................................................................I
Exclusions............................................................................................................................................................I
Technology and service....................................................................................................................................II
Relevant information .........................................................................................................................................II
Advice ..................................................................................................................................................................II
Contents .............................................................................................................................................................III
Chapter 1................................................................................................................................................................1
Overview................................................................................................................................................1
1.1 Foreword.........................................................................................................................................2
1.2 Features...........................................................................................................................................2
1.3 Use and precautions......................................................................................................................2
Chapter 2................................................................................................................................................................4
Product introduction.......................................................................................................................................4
2.1 Overall appearance...................................................................................................................................5
2.1.1 Upper cover ..........................................................................................................................................5
2.1.2 Bottom cover.........................................................................................................................................5
2.1.3 Control cover ........................................................................................................................................6
2.2 Button & LED .............................................................................................................................................7
2.2.1 Button function .....................................................................................................................................7
2.2.2 LED ........................................................................................................................................................7
2.3 WEB management system......................................................................................................................8
2.3.1 Main menu ............................................................................................................................................8
2.3.2 Information ......................................................................................................................................... 10
2.3.3 Work mode......................................................................................................................................... 12
2.3.4 File manager...................................................................................................................................... 13
2.3.5 Firmware ............................................................................................................................................ 14
2.3.6 System................................................................................................................................................ 15
2.4 Static survey............................................................................................................................................ 17
2.4.1 Static settings .................................................................................................................................... 17

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2.4.2 Static data collection steps.............................................................................................................. 17
2.5 Tilt survey ................................................................................................................................................ 20
2.5.1 Calibration-free tilt survey................................................................................................................ 20
2.6 Firmware upgrade.................................................................................................................................. 21
2.6.1 Upgrade by USB cable..................................................................................................................... 21
2.6.2 Upgrade by using the web management system......................................................................... 22
Chapter 3............................................................................................................................................................. 23
Technical specification .........................................................................................................................23
3.1 Technical parameters..................................................................................................................24
Chapter 4............................................................................................................................................................. 26
Accessories and interfaces ........................................................................................................................... 26
4.1 Data cable .....................................................................................................................................27
.........................................................................................................................................27
...........................................................................................................................................27

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Chapter 1
Overview
This chapter contains:
- Foreword
- Features
- Use and precautions

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1.1 Foreword
Freyja GNSS RTK receiver brings superior performance and high efficiency that will support your
fieldwork with reliable solutions. Its deployment of the advanced RTK engine and new-generation IMU
guarantees a 25% performance improvement even in the most demanding environments. Thus you can
count on Satlab Freyja to provide you with better productivity.
1.2 Features
1. Its more durable and portable with an ultra-light EPP material instrument case.
2. It can bring accurate and reliable results and boost efficient fieldwork with a self-developed built-in
IMU and core algorithm.
3. Equipped with the High-performance Patch Antenna, it both enhances the low elevation angle
tracking capabilities and maintains a high gain for higher elevation satellites.
4. It does not provide overly optimistic coordinate quality and guarantees the high reliability of RTK fixed
positions, improving accuracy better than 8 cm by 20 %.
5. Hi-Fix technology enables both continuous connectivity and quality results.
1.3 Use and precautions
The Freyja GNSS receiver is designed to have chemical and impact resistance, but precision
instruments require careful use and maintenance.
Notice:
1. The receiver must be within the specified temperature range when it is used and
stored. For detailed requirements, please refer to Chapter 3: Technical specification.
2. Recommend a separation distance of 1m or more should be maintained between
this device and persons during device operation. To ensure compliance, operations at
closer than this distance is not recommended.
3. The product shall not be permanently installed outdoor because protection against
water and dust is not guaranteed Please bring back to indoors in rainy weather.
4. This device needs a license from the national regulatory authority before can be put
into service.

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In order to ensure the continuous tracking observation of the satellite and quality of the satellite signal,
the space above the station should be as wide as possible, with no obstacles above the 15° elevation
angle. To reduce the interference of various electromagnetic waves on the GNSS satellite signal, there
should be no strong electromagnetic interference within a range of about 200m around the station, such
as TV towers, microwave stations, and high-voltage transmission lines. To avoid or reduce the
occurrence of multipath effects, the station should be away from terrain and features with strong
reflectors, such as high-rise buildings, water, etc.
Notice:
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operation.

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Chapter 2
Product introduction
This chapter contains:
- Overall appearance
- Button & LED
- WEB management system
- Static survey
- Tilt survey
- Firmware upgrade

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2.1 Overall appearance
The product’s appearance is divided into three parts, including the upper cover, bottom cover and control
panel.
Figure 2-1-1
2.1.1 Upper cover
Figure 2-1-2
2.1.2 Bottom cover
The bottom cover includes the SMA antenna interface, Type-C USB interface.

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Figure 2-1-3
1. SMA antenna interface 2. Connection screw 3. Speaker 4. Type-C USB interface
◇SMA antenna interface: Connect the radio antenna while using the Internal UHF mode.
◇ Type-C USB interface: To upgrade the firmware and download static data.
◇ Protective plug: Used for dustproof and waterproof sockets.
2.1.3
Control cover
The control panel includes a satellite light, power button and data light.
Figure 2-1-3
1. Satellite LED 2. Data LED 3. Power button
Notice:
1. If you don’t use the SMA antenna interface and USB interface, please cover
the rubber plug to protect them from dust and water.
2. When the speaker is flooded, the sound may be silent or hoarse, but it will
return to normal after it has dried.
4
1
2
3
1
2
3

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2.2 Button & LED
2.2.1 Button function
Table 2-2-1 Button function description
Function
Description
Power-on
Long press the power button for 1 second.
Power-off
In the power-on state, long press the power button for more than 3 seconds but
less than 6 seconds.
Forced shutdown
（use when the
device crashes）
Press the power button for at least 12 seconds.
Query current
status
Press the power button once to voice the product’s current working status.
Reset motherboard
When the device is powered on, long press the power button for 6 seconds and
release it after hearing the second "dingdong" sound.
Switch working
mode
Double-click the power button to enter the mode switch. After each double-click,
switch to a working mode, and click the power button to confirm it.
One-key setting
station
When the device is powered off, long press the power button for 6s to turn it on.
2.2.2 LED
Table 2-2-2 LED function description
Function
Status
Description
Power LED(red)
Long-term lighting
When the device is powered off, it is for charging the device.
OFF
It is not charging or fully charged.
Power LED(green)
Flash
The power ≤10%.
Long-term lighting
1. RTK mode: No correction data.
2. Static mode: Sampling has not started.
Flash
1. RTK mode:
Flashes at the frequency of the correction transmit and
receives.
2. Static mode:

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Function
Status
Description
Data LED
Sampling interval >1s: Flashes at the sampling interval.
Sampling interval ≤1s: Flashes once per second.
Off
1. RTK mode: No correction data.
2. Static mode: Sampling has not started.
Satellite LED
Long-term lighting
Satellite is tracked.
Flash
Satellite is not tracked.
2.3 WEB management system
Freyja has a built-in web management system that can be used to set the receiver's working mode,
data output, as well as view receiver information and satellite information. The receiver’s Wi-Fi name
is its S/N. You can connect it to a controller or phone (the default password is: 12345678) and then
input the IP address 192.168.20.1 into the browser to log onto the web management system.
Note: The web management system can only be visited when the receiver’s Bluetooth isn’t connected.
2.3.1 Main menu
After logging into the web management system, you can click Start to enter the main menu interface.
Each option of the main menu contains drop-down menus.
Figure 2-3-1 Home Figure 2-3-2 Main menu

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Figure 2-3-3 Information Figure 2-3-4 Work mode
Figure 2-3-5 File manager Figure 2-3-6 Firmware
Figure 2-3-7 System

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Table 2-3-1 Menu description
Main menu
Sub-menu
Description
Information
Device info
Device model, version, registration info, etc.
Position info
Coordinates, satellite tracking, solution state, etc.
Base info
Coordinates and distance to the base
Sky plot
Check the sky plot
Satellites list
Satellite tracking information
Work mode
Rover
Data link and parameter settings of the rover
Base
Data link and parameter settings of the base
Static
Static measurement parameter settings
File manager
Static data
Download, delete and format static data
Firmware
Upgrade
Select and upgrade the firmware
Restore
Restore the system
System
Constellation
The satellite tracking switches
Five-pin port
Output settings of the five-pin
Radio
Radio frequency list
Reset
Reset the motherboard
Registration
Device registration and information
Others
Switch of the static RINEX and volume control, etc
2.3.2 Information
1. Device information
Includes the main information about the device: device model, S/N, firmware version, OEM info,
battery power, work mode, configuration parameters, etc.
Figure 2-3-8 Device information

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2. Position information
Includes the device’s position, satellites, solution state, latency, PDOP and time, etc.
Figure 2-3-9 Position information
3. Base information
Includes the coordinates and distance of the base in the rover mode.
Figure 2-3-10 Base information
4. Sky plot
Displays the visual satellites of the device and the switches of each constellation.
Figure 2-3-11 Sky plot

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5. Satellites list
Shows the satellite’s tracked information.
Figure 2-3-12 Satellites list
2.3.3 Work mode
1. Rover
Set up the rover’s data link and parameters. The rover station data link includes: Internal UHF.
Figure 2-3-13 Rover
2. Base
Set up the data link and parameters of the base and get the point coordinates by averaging. The base
station data link mode includes: Internal UHF.

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Figure 2-3-14 Base
3. Static
Set up the file name and parameters of the static collection.
Note: After ticking Static Mode, you can only cancel it in the base rover setting interface.
Figure 2-3-15 Static
2.3.4 File manager
1. Static data
Display the static data files, which supports the Download, Delete and Format options.
Note: After checking the "Static Mode", you can only uncheck the "Static Mode" in the base station
mode or rover mode.