RTAP2U GNSS Receiver User Guide Version 1.1.0 Last Revised September 2, 2021 All materials contained in this document are protected by the copyright law and may not be reproduced in any form without prior written permission from PP-Solution Inc.
Contents 1. Overview ················································································································· 3 1.1 Receiver Overview ····································································································· 3 1.2 Receiver Features ······································································································ 4 2.
1. Overview 1.1 Receiver Overview Thank you for purchasing RTAP2U, a high-precision GNSS receiver. This user guide is designed to assist users in configuring the receiver and utilizing its features. RTAP2U is the dual-frequency multi-band GNSS receiver that uses a u-blox ZED-F9P module. It can receive GPS, GLONASS, BeiDou, Galileo, and QZSS signals.
1.2 Receiver Features RTAP2U has an antenna connector for GNSS antennas in the front. The power button is located on the back side, and UBX1), NMEA2) data are receivable through the USB port. Power USB GNSS Antenna Connector LED Four LEDs are visible on the top and provide Wi-Fi, Positioning, GPS, and Power status.
The physical dimension of RTAP2U is 80.00 × 68.81 × 36.00 mm as described in the image below. RTAP2U received the KC certification (Registration of Broadcasting and Communication Equipments) and the Japan MIC (Requirement for wireless radio communication devices) certification.
2. Receiver Operation 2.1 Powering On and Off Users can turn on RTAP2U by pressing the power button on the back side. The LED indicator changes by each step as described in the table below. When the device is completely booted, the Power LED ( ) turns green and the Wi-Fi LED ( ) turns yellow. It takes about one to two minutes to reboot. You can turn off RTAP2U by pressing the power button on the back side again. Step Description ① Rebooting (1~2 minutes) ② Booting complete 2.
① Search and connect to the internal Wi-Fi network ② Log in to RTAP2U Viewer ③ Establish connection with an external Wi-Fi network The following steps (1) through (6) illustrates how to access the RTAP2U Viewer, connect to the external Wi-Fi network, and receive RTCM messages. ※ This document is based on firmware (v1.1.0_kernel.fw), made in September, 2021. (1) Connect to the internal Wi-Fi (AP Mode) When connecting to the network by a desktop, follow the two steps below.
When connecting to the network by a mobile device, follow the three steps below. The receiver connects to your mobile hotspot for the external network. Also note that the images may differ depending on the user’s mobile device type, operating system, and settings. ① Set up your mobile hotspot ID and password. The image below is an example. ※ Note If there is a special character other than “_” included in the SSID, the receiver may not be able to connect to the hotspot network.
(2) Open RTAP2U Viewer Enter 192.168.73.1:5000 on the web browser. (3) Enter the login information Type in the below User ID and Password in the RTAP2U Viewer login window. Then click SIGN IN. • User ID: root • Password: rtap2u (4) Check the connection status with RTAP2U RTAP2U connection status is visible on the bar at the top left of RTAP2U Viewer.
(5) Connect to the external network (Station mode) The Station mode should be set up through RTAP2U Viewer to connect to an external network. ① Click Config on the bottom bar and select WI-FI on the top bar. ② Enter the Wi-Fi name (SSID) and password (Security Key), and then click SUBMIT. The image below is an example. ※ Note Connection with a 5G network is not available, so please use a 2.4G network.
③ Click CONFIRM on the Warning window to proceed with the changes. ④ A green notice “Submission was successful.” will pop up on the top right of RTAP2U Viewer.
Click Info on the RTAP2U Viewer bottom bar and select DEVICE on the top bar. If the Station IP wlan0 under General Info is 0.0.0.0, it indicates that the external network is not connected. The network is connected if a valid IP address is visible as the above image. You have completed the initial device setting. There is no need to repeat the steps after this. To access the RTAP2U Viewer later on, users have to first connect to the internal Wi-Fi (R2U-B11-XXXX) and enter 192.168.73.
2.3 Receiving RTCM Messages RTAP2U can receive RTCM messages through NTRIP or TCP/IP. After connecting RTAP2U to the external Wi-Fi network, RTCM message reception and precision positioning are possible through the settings illustrated in the following steps. (1) Enter server information for correction messages ① Click Config on the RTAP2U Viewer bottom bar and select RTCM on the top bar. ② Tap on NTRIP as the Connection Type.
① Click Config on the RTAP2U Viewer bottom bar and select RTCM on the top bar. ② Tap on TCP/IP as the Connection Type. ③ Enter your TCP/IP server information in the TCP/IP Setting section. Information to fill out are as the following: Server Address: TCP/IP server address Server Port: Server port number User ID: Enter when necessary Password: Enter when necessary ④ Click SUBMIT after entering the information.
⑤ A green notice “Submission was successful.” will pop up on the top right of RTAP2U Viewer. (2) Check the positioning status The LEDs indicate the receiver’s positioning status according to the correction data received.
2.4 Checking Performance Quality of the real-time and high-precision positioning by RTAP2U is visible on the device LED and on the RTAP2U Viewer. The RTAP2U Viewer provides the satellite signal status, positioning mode, accuracy, and map view in a user-friendly interface. 2.4.1 Positioning Mode RTAP2U functions in four positioning modes depending on the correction data received. The modes are Standalone, DGPS, RTK-Float, and RTK-Fix.
The information available in the Position Information table is as the following. Latitude: dd.mm.ss N/S Longitude: dd.mm.ss E/W Ellipsoidal Height: meter Orthometric Height: meter Geoidal Height: meter Velocity 2D: km/h DOPs: Dilution of Precision (PDOP, HDOP, VDOP) Local time: hh:mm:ss Receiver date: yyyy-mm-dd ③ Users can confirm the positioning mode on the top right part of the RTAP2U Viewer bar.
2.4.2 Accuracy Users can compare a true coordinate with RTAP2U’s high-precision coordinate in real-time. The comparison is visible through a graph and numerical data on DEVIATION PLOT in the RTAP2U Viewer. ① Click Info on the RTAP2U Viewer bottom bar and select DEVIATION PLOT on the top bar. ② Choose the Input Type of the Reference Position. Click ENTER and type in the coordinate needed to calculate the accuracy. Then click SET to apply.
The graph shows the horizontal accuracy of the receiver coordinate. It displays the East-West and North-South difference in comparison with the true coordinate. The Deviation section shows accuracies of East-West (ΔE), North-South (ΔN), and Vertical (ΔV) direction. 2.4.3 Satellite Tracking Real-time information on the GNSS constellation, number of satellites tracked, elevation and azimuth of the satellites, signal strength, and more are available on the RTAP2U Viewer.
③ Information available in the second table is as the following.
④ Click Skyplot on the RTAP2U Viewer bottom bar ⑤ Users can observe the skyplot with the RTAP2U’s location as the center point. Select the check box to choose GNSS constellations to display.
2.4.4 Map Click Map on the RTAP2U Viewer bottom bar to see the user location, which is based on the receiver’s precise coordinate. Note that this is available only when the Internet is connected.
2.5 Managing Log Files STOP & GO tab is used to log coordinates for a short period. When logging coordinates for long intervals, users can set the length of the interval through the SYSTEM LOG tab. The log files are saved in the RTAP2U internal memory and can be downloaded. 2.5.1 STOP and GO logging ① Click Log on the RTAP2U Viewer bottom bar and select STOP & GO on the top bar. ② Real-time logging is visible in the NMEA panel. Click CLEAR to remove logs in the NMEA panel and FREEZE to pause logging.
2.5.2 Saving Log Files ① Click Log on the RTAP2U Viewer bottom bar and select SYSTEM LOG on the top bar. ② Choose the log file format between NMEA and UBX in Message Types. ③ Select the Log Interval and enter the File Prefix to set the logging period and file name. Time: Separate files are made according to the time period selected. File Prefix: Enter the file name that will be saved in the internal memory. ④ The GPS Log List shows all files that are saved in the internal memory.
2.6 Updating Firmware RTAP2U’s latest firmware is available on the PP-Solution Inc. website. Users can easily download the firmware file and update the receiver. The firmware includes updates on the device and RTAP2U Viewer functions so it is highly recommended for the receiver’s best performance. The following steps (1) through (4) illustrate how to download the firmware and update the receiver. (1) Download the firmware Visit www.ppsoln.com and click Resources on the top menu and select Downloads.
(3) Upload the firmware ① Click Config on the RTAP2U Viewer bottom bar and select SYSTEM on the top bar. ② Click UPLOAD FIRMWARE and choose the latest firmware file. This may take up to three minutes depending on the network environment. ③ After a green notice “SUCCESS FW Version: XXXX.” pops up on the top right, close the RTAP2U Viewer window. (4) Reboot the receiver The receiver automatically starts rebooting once the firmware is uploaded. It takes about one to two minutes to reboot.
3. Specifications General Power DC 5V 1A Size 80 mm × 69 mm × 36 mm Weight 160 g Operating Temp. -20 °C ~ 55 °C Ingress Protection IP 54 GNSS Receiver Specifications ㆍ184 Channels ㆍGPS L1 C/A, L2C ㆍGLONASS L1OF, L2OF Signal Tracking ㆍGalileo E1B/C, E5b ㆍBeiDou B1l, B2l ㆍQZSS L1 C/A, L2C ㆍSBAS L1 C/A ㆍUp to 20 Hz ㆍRTCM version 3.3 Data Management ㆍNMEA Output ㆍRTK, VRS, FKP, MAC, PPP-RTK ㆍ10 GB Internal Memory ㆍCold Start: 24 s Time to First Fix ㆍWarm Start: 2 s ㆍReacquisition: 2 s ㆍRTK: 0.
4. Service 4.1 Customer Service Please contact your dealer to receive technical support and service. If you need to obtain information regarding your dealer’s contact, reach out to PP-Solution Inc. at the following address: Website: www.ppsoln.com Telephone: +82-2-6925-1516 Address: PP-Solution Inc., 606 Seobusaet-gil #B-2311, Seoul, Korea 08504 4.2 Warranty This product is warranted for a period of one year from the original purchase date. PP-Solution Inc.
FCC Statement 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
606 Seobusaet-gil #B-2311, Seoul, South Korea 08504 Phone: +82-2-6925-1516 Fax: +82-2-6455-4305 Copyright ⓒ PP-Solution Inc. All rights reserved.
