Tersus David Plus Gnss Receiver (positioning, heading) Without Antenna

• Accuracy: 10mm+1ppm
• Vertical Lines: 2
• Horizontal Line: 10mm+1ppm
• Language: Support Language Customized
• Model: David
• Transport Package: Carton
• Model NO.: david plus
• Specification: 45*40*25cm (7kg),45*40*25cm (7kg), 17*14*145cm(5kg
• Trademark: TERSUS
• Origin: China
• HS Code: 8526919090
• Production Capacity: 1000/Year

Product Description

Product Description

 

OVERVIEW:
The Tersus David is a cost-efficient, palm-sized GNSS receiver designed for surveying, UAVs, AGVs, and agricultural applications. Working with an external GNSS antenna, the free Tersus Survey App and post-processing software, the David GNSS receiver is a low-cost solution for all survey applications, including real-time RTK positioning and data collection for PPK.
 
A 4GB in-built memory makes it easy to record data for post processing. The compact size, IP67-rated enclosure, and external Bluetooth module alleviates most of the inconveniences encountered in field work.

Detailed Photos

 

Product Parameters

 

Key Features

Supports multiple constellations & frequencies:

-GPS L1, L2

-GLONASS L1, L2

-BeiDou B1, B2

Supports 384 channels

Supports RTCM2.3/3.x, CMR, CMR+ corrections

Easy to connect an external powerful radio for long range communication

Flexible for integration in different applications

20Hz raw measurement output for post processing

The carrier phase accuracy down to 1mm

In-built 4GB eMMC for data recording

Input power range is 5~12V DC

IP67-rated dust- & waterproof enclosure, for reliability in harsh environmental conditions

Supports Nuwa & FieldGenius surveying software

 

Performance

Signal Tracking For Antenna:
                   GPS L1, L2; GLONASS L1, L2; BeiDou B1, B2

GNSS Channels:                                                             384

Single Point Positioning Accuracy (RMS):

-Horizontal:                                                              1.5m

-Vertical:                                                                   3.0m

Real Time Kinematic (RMS):

-Horizontal:                                               10mm+1ppm

-Vertical:                                                    15mm+1ppm

Post Processed Kinematic (RMS):

-Horizontal:                                               10mm+1ppm

-Vertical:                                                    15mm+1ppm

Static Post Processing (RMS):

-Horizontal:                                              3mm+0.5ppm

-Vertical:                                                   5mm+0.5ppm

Observation Accuracy (zenith direction):

-C/A Code:                                                              10cm

-P Code:                                                                   10cm

-Carrier Phase:                                                        1mm

Time To First Fix (TTFF):

-Cold Start:                                                                <50s

-Warm Start:                                                             <30s

Timing Accuracy (RMS):                                             20ns

Velocity Accuracy (RMS):                                     0.03m/s

Initialization (typical):                                                 <10s

Initialization Reliability:                                         >99.9%

Max. Measurements Update Rate:                         20Hz

Input Voltage:                                                 5V~12V DC1

Power Consumption (at 25ºC ):        3.2W (David only)

Active Antenna Input Impedance:                             50Ω

Storage:                                            In-built 4GB memory

 

Communication

Serial Ports:                                                           RS232 x2

USB Ports:                                              USB 2.0 device x1

Antenna Connector:                                 SMA female x1

COM Baud Rate:                                    Up to 460800bps

 

Software Support

Tersus Nuwa

MicroSurvey FieldGenius

Other Third Party Software Support NMEA-0183

Physical

Dimension:                           104x65x31mm (David only)

Weight:                                                ≈ 250g (David only)

Operating Temperature:                           -40ºC ~ +85ºC

Dust- & Waterproof:                                                   IP67

Optional Accessories

2W 460MHz/30W 460MHz radio to transmit/receive RTK corrections

Battery bank

 

Company Profile

Nanjing Hanzhong mapping equipment Co., Ltd. is a company to provide professional surveying and mapping services for the country mapping units. The company set sales, repair, and services, it is in specialized in sales of surveying instruments in domestic and abroad.

Mainly sales of total station, auto/digital level, auto/electronic theodolite, GPS, GNSS RTK, receiver, laser distance meter, handheld GIS,UAV. etc. And some accessories for these surveying instruments. We can provide trimble, spectra, sanding, hi-target, south, kolida, chc, stone, unistrong, foif and other well-known brands at home and abroad.
 

Our Company′s employees graduated from engineering, surveying, and mapping professional institutions of higher learning, they have professional knowledge, so we are the high-quality sales and service team to provide you with excellent quality instrument service, customized, comprehensive, practical, and efficient measuring solutions .At the same time also provide intimate after-sales service.

Our aim: Integrity, professionalism, service

Our goal: To do the best mapping equipment supply service providers
 

 

FAQ

 

FAQ:

Service
1.Any inquiries will be replied within 12 hours.

2.All our products have one year warranty, And we sure the products will be free from maintenance within warranty period.

3.All products will have been strictly quality checked in factory before sending out.



 

 

We accept payment by TT,Paypal, West union.

If you'd like other payment method, Pls let us know before the order

 

Delivery / shippment :



 

1.Usually, we will send out the products within 3-5 working days after the payment confirmed

2.Before shipment, pls supply the following information to us :

Contact person or company name,Detail address,Telephone No,Zipcode

3.The buyer are responsible for the tax and/or duty charged by their country. 
 

Return and warranty:

1.All products are inspected before shipment, if you are not satisfactory with the purchase,you can exchange the items in one week,and you must contact us within 24 hour of receipt of the products.

2.The shipping charges are not refundable and the customer should be responsible for all the charges of return and reshipping.

3.For our majority products (Auto level, Theodolite, Total Station) we are offing 1 year warranty;

4.For small issues like missing or damaged part, key board, please send us the photos, we will send the required part and related instructions to you for free;

5. For big issues in one year warranty like EDX board, main board issue. We could only ask you to send the instrument back to us. Normally we will have it fixed in 10 working days and send back to you. You and we shall take care of the corresponding shipping cost on each side. For big issues out of one year warranty, the customer should be responsible for all the cost. 

 

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