Electrical Characteristics
| parameter | symbol | Minimum | conventional | maximum | unit |
|
Supply voltage range
|
VCC
|
4.5 | 5.0 | 12.0 | V |
|
Average current
|
Capture current
|
160 @5.0V | 185 @5.0V | 240 @5.0V | mA |
|
Tracking current
|
160 @5.0V | 185 @5.0V | 214 @5.0V | mA | |
|
Antenna supply current 1
|
RF_VCC | - | - | 70mA @5.0V | mA |
|
VCC port maximum ripple
|
Vrpp | 0 | 50 | 50 | mV |
| Vin | -0.5 | Vcc+0.2 | - | mV | |
|
Static Electricity Protection
|
VESD(HBM) | - | 2000 | 2000 | V |
|
Storage temperature
|
Tstg | -55 | - | 85 | ℃ |
|
Operating temperature
|
Tstg | -40 | - | 85 | ℃ |
*Passive Antenna Testing
1Maximum current supported by a single antenna
Mechanical Dimensions
Interface configuration selection
The OneRTK Ultra module includes 1 CAN port and 1 UART interface for communication with the host. Different interfaces can be selected through the connection of different hardware interfaces. 1 PPS output time pulse and 1 EVENT external event trigger.
Basic operating instructions
Download and install RxTools software
- Septentrio Official website download:https://www.septentrio.com/en/support/software/rxtools
- Domestic network disk Baidu cloud download v22.0.0:https://pan.baidu.com/s/13BPfxRtgQxreB_XPl-wxPA Extraction code:smnf
- Domestic network disk Weiyun download v22.0.0:https://share.weiyun.com/xpz5qgqE
- RxTools User Manual file:///E:/Program%20Files%20(x86)/Septentrio/doc/index.html?section=ch:rxcontrol

Hardware Hookup
- Use the MMCX connector to convert to a TNC or SMA interface and connect the satellite antenna
- Use a USB cable to connect the device to the computer
The board will virtually connect to 2 serial ports on the computer. The serial port numbers can be viewed through the device manager interface:

At the same time, the USB cable connection will also create a virtual network port with a fixed IP address of 192.168.3.1
Note:①OneRTK Ultra single antenna can be powered by USB connection at the same time, without the need for an external power supply.
②The connection of OneRTK Ultra dual antenna is shown in the figure below.
RxControl Software Connection Board
- Start the RxControl software, and the Connection Setup dialog box will pop up. Select Serial Connection/Create New… For the first connection, you need to create a new one; for the next connection, select the created serial port connection.

- After the connection is successful, you can see the RxControl interface as follows:

Check firmware and upgrade
Confirm the board version
- Check the firmware version through RxControl software Help/Receiver Identification

-
The latest mosaic firmware version is 4.12.1 (April 2022), and you can also download the latest firmware through the following link:https://www.gnss-imu.com/down/html/48.html
Firmware Upgrade
-
RxControl Software File/Upgrade Receiver using Current Connection…
-
Select the latest firmware file. There are 2 firmware files. First upgrade the failsafe.suf firmware file, then upgrade the 4.7.1.suf firmware file.
-

- Upgrade Successfully

- Reconnect RxControl and confirm that the firmware version information has been updated through Help/Receiver Identification
Check the board status

Check satellite reception and signal-to-noise ratio

View differential data
Check the board positioning and orientation status

RxControl Command Line Window
Web interface


Set up tracking and solving satellites and frequencies
Tracking Satellites
Tracking frequency

PVT Solution Satellite
PVT solution frequency
Performance optimization settings
Anti-interference
- Wideband Interference Mitigation/Enable WBI mitigation: ON
- Notch Filters: Notch 1 – Auto; Notch 2 – Auto; Notch 3 – Auto

Multipath Mitigation
- Enable multipath mitigation on code phase: ON
-
Enable multipath mitigation on carrier phase: ON

Cut-off height angle
- Discard satellite if below: Tracking: 10 degree;
-
PVT: 10 degree;

Satellite time system
- RxControl/Navigation/Rover Operation/Timing / Timing System: Beidou

RTK mode
Base Station Mode
- Configure the board to Static mode:RxControl/Navigation/Position Mode

- Setting up RTCMv3 output



- Port enables output of RTCMv3 data

- Save settings
Regardless of whether you are in RxControl, the command line, or the web interface, you need to save the settings after changing them so that they will take effect after a power cycle.

Datalink Program
Function 1: Port link, data distribution

Function 2: Serial Port Assistant

Function 3: Port output data is recorded to a file

Rover Mode
- First, set the board to switch to Rover mode and use the RxControl software Navigation/Positioning
- RxControl software File/Copy Configuration/Current->Boot
- Setting up differential input in Datalink software
- Set Connection1 to connect to the USB2 port of Mosaic MiniEVK (the corresponding virtual serial port can be viewed through the computer's device manager)
- Set Connection2 to connect to the differential source via the serial port or NTRIP, and confirm that the differential data is effectively received via Show Data
- Link the differential data of Connection2 to Connection1, so that the MiniEvk board can obtain the differential data
Note: If you use Qianxun NTRIP or other CORS station differential data, you need to set the board to receive differential ports to output 1hz GGA data. For specific settings, see NMEA data port real-time output

- RTK Fixed status verification

NMEA data
Real-time output via port
- Through RxControl software, Communication/Output Settings/NMEA Output/NMEA Output
- Save the settings,File/Copy Configuration/Current->Boot

Record data to memory card
- Mosaic MiniEvk supports loading TF memory card and can record data to the memory card.
- Save the settings,File/Copy Configuration/Current->Boot
Record data computer file
Method 1: Through Datalink
Method 2: Logging via RxLogger or RxControl software

Note: If you check this box, you need to set it and record it. If you do not need SBF, you need to cancel it.
SBF raw data
Port output raw data

Record raw data to memory card
Record data computer file
Note: SBF data is recorded to the computer. If you need to change the recording interval, you need to use the RxLogger program to record. The SBF recording under RxControl cannot be set and the default is 1hz.
External events
PPS Output


Event
- In the RxControl software interface, select Navigation/Receiver Operation/Timing to set the Event and set the SBF data record. You need to check the Event data type so that the position information at the time of external triggering is recorded.

SBF data analysis
SBF Analyzer
- Double-click to run the SBF Analyzer program, or right-click an SBF file and select SBF Analyzer

- Check the content to be analyzed and click Analyze.
SBF Convertor
- Run SBF Convertor program or right-click the SBF file and click Convert SBF

- Can convert SBF to Rinex, ASCII files, etc.
- If it is an Event application, use ExtEventPVTGeodetic1 to view the position data recorded at the time of external triggering.
Troubleshooting
Diagnostic Report
- There are several ways to obtain the diagnostic report or report content: connect the RxControl software to the board, File/Display Diagnostic Report or press the shortcut key Crtl+C, and then save the report as a pdf file.
- Through the web interface Admin/About/Diagnostic Report, then Save As as a text file
- Or through the serial port assistant, enter the following command and copy the content returned by the board to a file
Support SBF files
troubleshooting
When satellite search is poor, you can check the antenna power and signal quality on the OverView page.
Normally, Main RF Power and Aux1 RF Power should be ≧ 9. If less than 9, please check the RF connection line and module power supply. Make sure the antenna current consumption is <150mA.
Main Antenna (Main signals) and From the antenna (Aux1 Signals) Should be ≧7

Select a specific satellite system
Users can choose a specific satellite system based on their location.Click Corrections->Corrections OutOutput

- Click the RTCM message edit icon

- Select the desired satellite system and click OK

- Mosaic GPS supports recording satellite logs with SD cards. Before using the data logging function, you need to set up the module and select which messages to log. Click logging to enter the log setting page.

- Depending on the type of information required, click New NMEA Stream or New SBF Stream (using SBF as an example), select the desired information, and click OK.

file name
- Enter a file name for the recorded file (you can also use the default name "log"), then click in the Enable Logging column to start recording.
- Once you have set up a NMEA/SBF logging stream, you can also use the LOG button to start/stop recording.
- After the setup is complete, you can see the log LED on the GPS flashing, indicating that the log is being recorded. At this time, short press the log key (within 5 seconds) to pause the recording, and short press again to resume the recording.
- Before shutting down the GPS, it is recommended to press and hold the log key (more than 5 seconds) to end log recording, and then shut down again to avoid possible log damage.
Rxcontrol software usage
- Log playback view:File>>change connection>>Select the recorded local .sbf suffix file>>Click finish to replay the previously saved GPS data.



Click finish to replay the previously saved GPS data.
Tracking Satellites
- Set up tracking satellites, RxControl software Navigation/Advanced User Setting/Tracking/Satellites Tracking, check all GPS+Glonass+Galileo+Beidou

Command line:sst,GPS+Glonass+Galileo+Beidou
Tracking frequency
- Set the tracking frequency, RxControl software Navigation/Advanced User Setting/Tracking/Signal Tracking, check all GPS+Glonass+Galileo+Beidou all frequencies

Command line:snt,GPS+Glonass+Galileo+Beidou

PVT Solution Satellite
- Set the satellite for solution, RxControl software Navigation/Advanced User Setting/PVT/Satellites Usage, check all GPS+Glonass+Galileo+Beidou


Command line:ssu,GPS+Glonass+Galileo+Beidou
PVT solution frequency
- Set the solution frequency, RxControl software Navigation/Advanced User Setting/PVT/Signal Usage, check all GPS+Glonass+Galileo+Beidou all frequencies


Command line:snu,all,all
Performance optimization settings
Anti-interference
Follow the steps below to set up the anti-interference function option:RxControl/Navigation/Advanced User Setting/Frontend and Interference Mitigation:The default is open
- Wideband Interference Mitigation/Enable WBI mitigation: ON
- Notch Filters: Notch 1 – Auto; Notch 2 – Auto; Notch 3 – Auto


Command line:setWBIMitigation,on//Wideband Interference Suppression - Enable
The sample module is shown below with anti-interference turned off.


Multipath Mitigation
To view and set multipath mitigation options, follow these steps:RxControl/Navigation/Receiver Operation/Tracking and Measurements/Multipath:The default is open
- Enable multipath mitigation on code phase: ON
- Enable multipath mitigation on carrier phase: ON

Command line: setMultipathMitigation,on,on //Multipath Suppression-Enable
Cut-off height angle
It is recommended to set the cut-off altitude angle to 10°. You can view and set the cut-off altitude angle option by following the steps below: RxControl/Navigation/receiver operation /Mask/Elevation The default is ask:Discard satellite if below: Tracking: 10 degree; PVT: 10 degree;

Command line: setElevationMask,tracking,10//Set the tracking cutoff angle to 10°
setElevationMask,pvt,10//Set the PVT cutoff angle to 10°
Satellite time system
The board uses GPS time as the default satellite time system. If the GPS signal is found to be interfered with in actual application scenarios and the positioning quality is affected, resulting in the inability to enter the RTK Fixed state, it is recommended to change the time system to the Beidou satellite system time. The method is as follows:RxControl/Navigation/receiver Operation/Timing / Timing System: Beidou
+

Command line:setTimingSystem,Beidou //Set the time system to Beidou satellite system time
Serial port output settings
Com1 interface configuration SBF output
Data 100ms, support
PVTGeod-basevectorgeod\pvtgeodetic\velcovgeodetic
Pvtextra-dop
Attitude-atteuler\attcoveuler
Status-receiverstatus
