ComNav SinoGNSS T300 PLUS User manual

SinoGNSS○
R T300 PLUS User Guide
T300 PLUS
GNSS Receiver
User Guide
November 2021

SinoGNSS○
R T300 PLUS User Guide
Corporate office
ComNav Technology Ltd.
Building 2, No.618 Chengliu Middle Road, 201801 Shanghai, China
Tel: [phone]
Fax: [phone]
Website: http://www.comnavtech.com
E-mail: [e-mail]
Trademark notice
© 2019 ComNav Technology Ltd. All rights reserved.
SinoGNSS is the official trademark of ComNav Technology Ltd., registered in
People’s Republic of China, EU, USA and Canada.
FCC Notice
SinoGNSS
○
R T300 PLUS GNSS receivers comply with the limits for a Class B digital device, pursuant
to the Part 15 of the FCC rules when it is used in the Portable Mode.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference;
(2) It must accept any interference received, including interference that may cause undesired
operation.
Copyright Notice
This is the V3.0 (November, 2021) revision of the T300 PLUS GNSS Receiver User Guide. It cannot
be copied or translated into any language without the written permission of ComNav
Technology.
Technical Assistance
If you have any question and can't find the answer in this manual, please contact your local dealer
from which you purchased the T300 PLUS receiver. Alternatively, request technical support from
ComNav Technology Website: www.comnavtech.com or technical support email:
[e-mail]. Your feedback about this Guide will help us to improve it with future
revisions.
Safety Information
Before using the receiver, please make sure that you have read and understood this User Guide, as
well as the safety requirements.
⚫Connect your devices strictly based on this User Guide
⚫Install the GNSS receiver in a location that minimizes vibration and moisture
⚫Avoid falling to ground, or colliding with other items

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⚫Do not rotate 7-pin Lemo port
⚫Do not cover the radio, keep a sound ventilation environment
⚫To reduce radiation, please keep above 2 meters away from the radio station
⚫Takelighting protection measures when installing antennas
⚫Change the cable if damaged
Related Regulations
The receiver contains integral Bluetooth® wireless technology and UHF. Regulations
regarding the use of the datalink vary greatly from country to country. In some countries,
the unit can be used without obtaining an end-user license. But in some countries the
administrative permissions are required. For license information, please consult your local
dealer.
Use and Care
The receiver can withstand the rough treatment that typically occurs in the field.
However, the receiver is high-precision electronic equipment and should be treated with
reasonable care.
Warning and Caution
An absence of specific alerts does not mean that there are no safety risks involved. A
Warning or Caution information is intended to minimize the risk of personal injury and/or
damage to the equipment.
WARNING- A Warning alerts you to a potential risk of serious injury to your person and/or
damage to the equipment, because of improper operations or wrong settings of the equipment.
CAUTION- A Caution alerts you to a possible risk of damage to the equipment and/or data loss.
Warranty Notice
ComNav Technology does not warranty devices damage because of force majeure (lighting,
high voltage or collision).
ComNav Technology does not warranty the disassembled devices.

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Contents
1 Introduction....................................................................................................................... 1
1.1 About the receiver .................................................................................................. 1
1.2 Receiver features .................................................................................................... 1
1.3 T300 PLUS Receiver parts list.................................................................................. 1
1.3.1 Basic Supply kit ............................................................................................. 2
1.3.2 Optional Datalink kit ..................................................................................... 3
1.3.3 Transport Cases............................................................................................. 4
2 Setting up the receiver...................................................................................................... 6
2.1 Environmental requirements.................................................................................. 6
2.2 Front panel.............................................................................................................. 6
2.3 Lower housing......................................................................................................... 6
2.4 Power supply........................................................................................................... 7
2.4.1 Internal batteries........................................................................................... 7
2.4.2 External Power Supply .................................................................................. 8
2.4.3 Charge Battery via T300 PLUS Receiver........................................................ 8
2.5 Pole-mounted setup ............................................................................................... 9
3 General Operation............................................................................................................. 9
3.1 Button functions ..................................................................................................... 9
3.2 LED behavior ........................................................................................................... 9
3.3 Receiver Web GUI interface.................................................................................. 11
3.3.1 Checking the receiver status....................................................................... 12
3.3.2 Configuration .............................................................................................. 14
3.3.3 Receiver Management................................................................................ 19
4 Static survey .................................................................................................................... 21
4.1 Receiver Configuration ......................................................................................... 21
4.2 Static Data Collection............................................................................................ 22
4.3 Static Data Download ........................................................................................... 22
4.4 RINEX Convert....................................................................................................... 23
5 Real-Time Kinematic Survey (RTK) .................................................................................. 25
5.1 Installation of Survey Master................................................................................ 25
5.2 Wizard function in Survey Master ........................................................................ 25
5.3 Start a New Project................................................................................................ 27
5.4 Bluetooth connection ........................................................................................... 29
5.5 Internal RadioMode.............................................................................................. 31
5.5.1 Base Station by Survey Master ................................................................... 31
5.5.2 Start Rover Station by Survey Master......................................................... 33
5.6 External radio mode ............................................................................................. 34
5.7 PDA CORS Mode.................................................................................................... 35
5.8 Internal GPRS Mode.............................................................................................. 36
5.8.1 Point to Point/Points mode (P to PS mode)................................................ 37
5.8.2 Internal 4G Ntrip client mode..................................................................... 38
6 Basic Survey Functions .................................................................................................... 39
6.1 Topo survey........................................................................................................... 39
6.1.1 Survey settings............................................................................................ 41
6.1.2 Tilt survey.................................................................................................... 41
6.2 Auto survey/Area survey ...................................................................................... 43

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6.3 Stake points/lines.................................................................................................. 44
6.4 PPK ........................................................................................................................ 47
6.5 Site calibration/Grid Shift ..................................................................................... 48
6.5.1 Site calibration ............................................................................................ 48
6.5.2 Grid Shift ..................................................................................................... 50
6.6 COGO..................................................................................................................... 50
7 Data Export/Import......................................................................................................... 51
7.1 Import ................................................................................................................... 51
7.2 Export.................................................................................................................... 53
7.3 Import Basemap.................................................................................................... 54
8 Export Result ................................................................................................................... 55
8.1 NMEA 0183 output ............................................................................................... 55
8.2 Register T300 PLUS via Survey Master ................................................................. 56
9 Firmware Upgrade........................................................................................................... 57
9.1 Upgrade firmware via serial cable........................................................................ 57
9.2 Upgrade firmware via WIFI................................................................................... 59
Appendix A: 7-Pin Lemo definition .................................................................................... 61
Appendix B: Physical Parameter of Modules inside of T300 PLUS .................................... 62

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1 Introduction
The SinoGNSS
○
R T300 PLUS GNSS Receiver User Guide is aimed to help you get familiar
with the T300 PLUS receiver and start your project effectively. We highly recommend you
to read this manual before surveying, even you have used other Global Positioning
System (GPS) receivers before.
1.1 About the receiver
With SinoGNSS® Quantum™ algorithm, T300 PLUS GNSS receiver can be applied in RTK
mode with all GNSS constellations. T300 PLUS receiver has ultra-small size and strong
anti-interference ability to make it possible to work even in harsh environments. It is the
ideal RTK/GNSS product for surveyors.
1.2 Receiver features
The SinoGNSS® T300 PLUS GNSS Receiver key features:
•Ultra small and super light
- Size (W × H): 15.8cm × 7.5cm
- Weight: 0.95kg (including 2 batteries)
•1198 channels of simultaneously tracked satellitesignals
•Increased measurement traceability with SinoGNSS® Quantum™
algorithm technology
•Hot swap battery design
•Cable-free Bluetooth wireless technology
•5 indicator LEDs for battery, diff, satellite, WIFI/GPRS and 2 function buttons
for power and static
•IP67 waterproof
•Full base/rover interoperability
•Integrated receiving & transmitting radio with 12.5KHz frequency interval
•Integrated IMU sensor
•Integrated WiFi module
•Long distance range radio module
•Integrated 4G module, support Ntrip and Point to Point/Points protocols
•Support long baseline E-RTK™ (Beidou B3 signal is included in RTK
calculate engine)
1.3 T300 PLUS Receiver parts list
This section provides overall T300 PLUS receiver parts list, including basic supplies and
customized kits based on your requirements.

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1.3.1 Basic Supply kit
SinoGNSS® T300 PLUS GNSS Receiver Basic Supply kit contains two receivers and related
accessories.
Item
Picture
2* Kits T300 PLUS Receivers
1*GNSS Connector
2*7-pin Lemo to RS232
Cable
2* 7-pin Lemo to USB Cable
External Power Cable
2* Whip Antenna (UHF)
1*2m-Range Pole with
yellow bag

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4* Lithium-ion Battery
2* Battery Charger
R550 Controller
Controller Battery, Charger
and Cable
Controller Bracket
Optional accessories:
Double Bubbles Tribrach with
High Adapter
1* 30cm Extension bar
1.3.2 Optional Datalink kit
This kit is necessary for long distance radio communication, shown in the following
figures:

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Item
Picture
External Radio
CDL7
2-pin Lemo Power
Cable
7-pin Lemo Data
Cable
N-Type to TNC
Convertor
N-type to N-type
Antenna Cable
N-Type Radio
Antenna
1.3.3 Transport Cases
Standard transport case is designed for containing basic supply kit of one SinoGNSS
○
R T300
PLUS GNSS Receiver.

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Base Rover
The optional choice is provided to have capacity of two kits of T300 PLUS receivers.

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2 Setting up the receiver
This chapter provides general information on environmental requirements, setup,
power supply and connection of the T300 PLUS receiver.
2.1 Environmental requirements
To keep the receiver with a reliable performance, it is better to use the receiver in
safe environmental conditions:
•Operating temperature: -40°C to +65°C
•Storage temperature: -40°C to +85°C
•Out of corrosive fluids and gases
•With a clear view of sky
2.2 Front panel
Receiver front panel contains 5 indicator LEDs, Power button and Record button. The
indicator LEDs show the status of differential, satellite tracking, WIFI/GPRS and battery.
For detailed information, see chapter 3.3.
2.3 Lower housing
Receiver lower housing contains a serial port, UHF radio antenna connector, two
removable battery compartments (the SIM card slot is located in compartment A),
and a threaded insert.

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2.4 Power supply
T300 PLUS GNSS receiver supports internal batteries and external power input.
2.4.1 Internal batteries
The receiver is equipped with two rechargeable Lithium-ion batteries, which can be
removed for charging. The T300 PLUS receiver adopts the hot swap battery design that
provides you an effective survey workflow. The internal batteries typically provide
about 9-hour operating time.
⚫Battery Safety
Charge and use the battery only in strict accordance with the instructions below:
–Do not use or charge the battery if it appears to be damaged. Signs of damage
include, but are not limited to, discoloration, warping, and leaking battery fluid.
–Do not expose the battery to fire, high temperature, or direct sunlight.
–Do not immerse the battery in water.
–Do not use or store the battery inside a vehicle during hotweather.
–Do not drop or puncture the battery.
–Do not open the battery or short-circuit its contacts.
⚫Charging the Lithium-ionBattery
Although a dual battery charge is provided, the lithium-ion battery is supplied
partially charged. To charge the battery, first remove the battery from the receiver,
and then place it in the battery charger, which is connected to AC power. Please
obey the following instructions when charging your batteries:
–Charge the battery completely before using it for the first time.
–Fully charge takes approximately 6 hours per battery at room temperature.
–If the battery has been stored for a long time, charge it before your fieldwork.
–Re-charge the battery at least every three months if it is to be stored forlong
time.
⚫Storage of the Lithium-ion Battery
–Do not keep batteries inside the receiver if the receiver not used for longtime.
–Keep batteries in dry conditions.
–Take out the batteries from receiver for shipment.

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⚫Dispose of the Lithium-ion Battery
–Discharge a Lithium-ion battery before dispose of it.
–Dispose of batteries is an environmentally sensitive manner, and adhere toany
local and national regulations concerning battery disposing or recycling.
WARNING –Do not damage the rechargeable Lithium-ion battery. A damaged battery can
cause an explosion or fire, and can result in personal injury and/or property damage.
2.4.2 External Power Supply
The receiver is connected to an external power supply through a lemo to RS232
cable, and make sure that the red alligator clip is connected to the positive of
external power supply, black one to negative. Over-voltage function cannot
protect your T300 PLUS receiver if reverse connection.
Tip: The power consumption will be increasing if the base station transmits correction data through
internal UHF in the RTK mode; therefore, we strongly suggest using external power (7-28 volt DC)
for the base station.
2.4.3 Charge Battery via T300 PLUS Receiver
T300 PLUS GNSS Receiver can work as a charger, it means you can charge
batteries directly if the charger not by your side.
1. Power off T300 PLUS receiver with batteries inside.
Connect T300 PLUS receiver to 12V external power with serial cable.
2. Receiver will charge the battery from Side B to Side A, the red power led will
flashing during charging and will off when battery full.

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2.5 Pole-mounted setup
To mount the receiver on a range pole as the figure shown below:
⚫Thread the receiver onto the range pole
⚫Mount the controller bracket to the pole
⚫Install the controller into the bracket
Tip: Do not tightly clamp the controller on the Range Pole.
3 General Operation
This chapter introduces all controls for the general operation, including button
functions and all LED behaviors on the front panel.
3.1 Button functions
There are two buttons on the front panel, power button and record button.
⚫Power button:
Press the power button for about 1 second to turn on the receiver;
To turn off the receiver, long press the button for 3-4 seconds until all LEDs off.
⚫Record button:
Switch to static mode:Long press the record button for about 2 seconds, release
immediately when hearing beep from receiver;
Switch to RTK mode: press the button until Raw Data recording LED off.
Tip: The record button only works when receiving satellite signals, otherwise it will show timeout.
3.2 LED behavior
The LEDs on the front panel indicate receiver working status. Generally, a lit or slowly
flashing indicates normal operation, and an unlit LED indicates that no operation is
occurring. The following figure and table define each possible LED state:

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Power
Differential Data
Satellite Tracking
WIFI/GPRS
Raw Data Recording
LEDs
States
Description
Power
Lit
Enough power
Flashing
Low power
Differential Data
Flashes once per second
Receiving/transmitting differential
data
Satellite Tracking
Fast flashing/ Flashes 1 time
every 5 seconds
No satellite received
Flashes N times every 5 seconds
Received N satellite signals
Internal 4G and WIFI
Flashes once per second
GPRS function is working
Flashes once per five- second
WIFI is working
Flashes according to the selected
sample interval
1) Sample interval varies from
20Hz to 60s.
2) Flashing 1/s simultaneously with
differential light if internal
memory is run off
Power LEDs:
Power supply: 1) Two power LEDs are on if using the external power supply; 2) Only power
LED of working battery will be on if using the internal battery.
Low battery: 1) Power LED will flash with beep only with one battery; 2) if with two
batteries, the power LED of low battery will flash, and swapped to another battery when it
is run off.

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3.3 Receiver Web GUI interface
Step 1: Connect Wi-Fi of T300 PLUS receiver
Turn on the T300 PLUS GNSS receiver and wait for the T300 PLUS serial number to
appear under the available Wi-Fi networks on your smart phone or office
computer.
For example, T300 PLUS-T31LXXXXX (where xxxxx represents the last five digits of
the receiver serial number).
Enter password: 12345678
Step 2: Login the Web
Select the receiver, open a web browser and then enter the following IP address:
http://192.168.1.8
Tip: Most web browsers for computers / laptops and smart phones / PDAs support the receiver
Web GUI
Step 3: Enter the default login settings to access the main page
•Username: admin
•Password: admin
After accessing the main page, configuration menus are listed on the left, and
receiver’s settings on the right. Each configuration menu will be demonstrated in
the following sections.

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3.3.1 Checking the receiver status
In the section, you can check System information, Status, 4G Network, Bluetooth,
Wifi, Position info, satellite info.
(1) System information, includes the basic information includes receiver type, serial
number, system firmware version, board firmware version, radio firmware
(radio type), front panel firmware (T300 PLUS doesn’t have front LCD panel),
Web version.
(2) Status: Show the device status and data link status, includes work mode, data
link, internal storage capacity and current free storage. The default work mode
is rover with the new device, others will be same with the Survey Master
settings. Data link status will vary from different work mode, the default is null.
(3) 4G Network, when there is SIM card inside in the receiver, it will start itself, and
read the signal intensity, APN, and show started. If there is no SIM card inside,
it will show stopped.
(4) Bluetooth information, shows Bluetooth name and Mac address, Bluetooth
name cannot be changed; WIFI information, shows WIFI name, current Wifi
password and Mac address. The Wifi password is 12345678, the client can change
the password, click Save config to save configuration.

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(5) Position info, shows position status, clock status, tracking satellites, used
satellites and DOP status.
(6) Satellites Info, includes Tracking graph, Tracking skyplot.

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3.3.2 Configuration
This section includes Satellite tracking, work mode, Antenna setup and Base station
configuration.
⚫Satellite tracking, includes Smooth Pseudorange, default is OFF; Elevation mask:
default is 10 degrees; and every system status, supports to change by customers,
click Enter to save settings, click Cancel to cancel the settings.
⚫Antenna setup: measure method supports Slant height and vertical height, choose
Antenna type, and setup antenna height, click Enter to save configuration.

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⚫Base station configuration: Setup the station ID, Antenna height, measure method
supports slant height and vertical height; then click Get position to set the current
position or you can enter the coordinate yourself, click Start to start the base setup,
click Stop to stop the base setup.
⚫Work mode, includes rover settings and base settings.
Rover settings include Ntrip Client (Same with internal GSM in Survey Master) and
Radio (Same with internal radio in Survey Master).