ComNav Technology

High Precision GNSS Receivers, Antennas & OEM Boards for UAV, UGV, USV & Robotics | Wireless Datalinks

ComNav Technology
High Precision GNSS Receivers, Antennas & OEM Boards for UAV, UGV, USV & Robotics | Wireless Datalinks
Building 2, No.618 Chengliu, Middle Road, 201801, Shanghai, China China Regional offices
+86 21 64056796

ComNav Technology is a leading developer of innovative GNSS positioning solutions for UAVs (unmanned aerial vehicles), drones, UGVs (unmanned ground vehicles), USVs (unmanned surface vehicles) and other robotic platforms.

Our high-precision GNSS modules and positioning technologies deliver improved reliability and enhanced productivity for a wide variety of civil and commercial applications, including land and aerial surveying and mapping, precision agriculture and robotic systems control.

GNSS OEM Modules

The newly launched K8 Series OEM modules incorporate the latest QUANTUM III SoC chip, to provide more reliable and accurate positioning data in challenging environments. Featuring smaller size, lower power consumption, and a surface-mounted design, K8 series modules can be more easily integrated into a wider range of applications.

K801 – High-performance GNSS module for UAVs & robotics

K801 GNSS ModuleThe K801 is a surface-mount GNSS module with a small SWaP footprint for a wide variety of high-performance positioning applications such as UAVs, robotics and autonomous vehicles. The multi-constellation module supports GPS L1 and L5 frequencies as well as BeiDou, GLONASS, Galileo and QZSS.

With a built-in high-precision IMU, the K801 uses an advanced fusion algorithm to deliver continuous positioning data, and also incorporates built-in anti-multipath and anti-interference capabilities for enhanced reliability and stability in challenging environments such as urban canyons.

More Information: K801 GNSS Module

K803 — Full-constellation GNSS OEM board with onboard IMU

k803 GNSS OEM moduleThe K803 is a full-constellation and full-frequency SMD GNSS OEM module. With an advanced QUANTUM III SoC chip, it provides robust RTK and high-accuracy positioning data in challenging environments, such as city overpasses and urban canyons. Positioning accuracy is verified in this test report.

Furthermore, its performance during lock-lose is enhanced by an onboard IMU to provide responsive and seamless positioning. The ultra-small size and 1.0W low power consumption, makes it easy to integrate and ideal for unmanned applications.

The K803 is also available in a number of variants with different GNSS frequency options.

More Information: K803 GNSS OEM Board

K803 Lite – High-precision GNSS board for precision agriculture

K803 Lite L1 OEM BoardThe K803 Lite is a full-constellation OEM GNSS board featuring advanced DP filtering for smooth positioning capabilities. The compact and lightweight board delivers excellent pass-to-pass accuracy without the need for GNSS correction data.

The K803 Lite board utilises the same pin definition as many common brands, providing users with a seamless drop-in upgrade solution. When paired with the AT360 geodetic antenna, the board is an ideal positioning solution for precision agriculture and machine control applications.

More Information: K803 Lite GNSS OEM Board

K823 – Full-constellation dual-antenna GNSS module

K823 GNSS OEM moduleThe K823 is a full-constellation and dual-frequency SMD GNSS OEM board. Incorporating an advanced QUANTUM III SoC chip, it provides robust RTK and high-accuracy positioning data in challenging environments, such as city overpasses and urban canyons.

Designed with an onboard IMU module, it can provide continuous and high-quality positioning data with inertial navigation fusion algorithm. The ultra-small size and 1.6W low power consumption, make it an ideal choice for OEM integrators. The K823 module can be applied in a wide range of industries, including UAVs, driverless cars and IoT.

More Information: K823 GNSS OEM Board

K8 Module Test Report

ComNav Technology’s R&D team conducted a contrastive field test in order to verify the performance of the K8 OEM modules. In the test, the K8 series OEM modules were tested against three other manufactures in different environments. Watch the test video below:


View Test Report of K8 module >

GNSS OEM Board Comparison

Model K801 K803 K803 Lite (L1) K803 Lite K803S K823
Size (mm) 12x16x2.4 30x30x3.2 30x30x3.2 30x30x3.2 30x30x3.2 30x40x3.2
Weight (g) 1.6 8 8 8 8 10
Consumption 0.15W 1.0W 0.85W 0.85W 1.0W 1.6W
Channels 372 965 965 965 965 1226
GPS L1 C/A, L5 L1C/A,L2C,L2P,L5,L1C L1 L1C/A L1C/A,L2C,L2P,L5 L1,L2
GLONASS G1 L1,L2,L3* L1 L1 L1,L2 L1,L2
BDS B1I, B2a B1I,B2I,B3I,B1C,B2a,B2b B1 B1I B1I,B2I,B3I,B1C,B2a,B2b B1I,B3I, B1C*
Galileo E1, E5a E1,E5a,E5b,E6*,E5 AltBoc* E1 E1 E1,E5a,E5b E1,E5b

View our complete range of GNSS OEM Boards >

Datalink Modems

Radio modules for unmanned systems

The U50 and U70 are surface-mount wireless radio modules specifically designed to be easily integrated into systems requiring real-time wireless RX/TX capabilities for GNSS applications.

U50 Datalink Module
U70 Datalink Module

Featuring adjustable frequency from 410 to 470 MHz and channel spacing of 12.5 kHz, the low-SWaP modules are ideal for UAVs, UGVs and other robotic vehicles.

The CDL5 and CDL7 are high-quality, powerful external datalinks designed for long range RTK correction data transfer. High power design will extend your RTK work region. Fully metal construction provides high performance and rugged dependability for the toughest environment. The CDL5 and CDL7 are mianly used with the GNSS Receivers to extend the RTK work distance.

CDL5 UHF External Datalink
CDL7 UHF External Datalink

Datalink Module Comparison:

Model U50 U70 CDL 5 CDL 7
Size 40mm x 30mm x 3mm 30mm x 30mm x 3mm 11cm x 18cm x 9.3mm 11cm x 18cm x 9.3cm
Weight 10g 8g 1.3 kg 1.3 kg
Output Power 0.5W / 1W / 2W 0.5W / 1W / 2W 2W / 5W / 10W / 15W / 20W / 30W Low: 5 W
High: 30 W
Air Baud Rate 9600/19200bps selectable 500bps / 11000bps / 12500bps / 15500bps / 18000bps 9600/19200bps 500bps / 11000bps / 12500bps / 15500bps / 18000bps
Protocol Transparent / South- / Mac / TT450S LoRa Transparent / South / Mac / TT450 LoRa

More Information: Datalink Modems

GNSS Antennas

AT190 – High-gain helical antenna for unmanned vehicles

The AT190 is a high-stability helix antenna for UAVs, UGVs and other unmanned vehicles, with peak gain of greater than 3.5 dBi and a wide beam for reliable signal reception even at low elevation angles. The waterproof IP67-rated construction makes the AT190 ideal for harsh environments.

AT190 GNSS Antenna

More Information: AT190 GNSS Antenna

AT360 – Geodetic antenna for UGVs and ground robots

The AT360 is a super performance GNSS Antenna for UGVs, precision agriculture robotics, land surveying vehicles, construction, and deformation monitoring.

Featuring with high gain, low noise amplifier, high sensitivity and strong tracking capability, AT360 is a good choice for you.

AT340 - Geodetic antenna

More Information: AT360 GNSS Antenna

AT410 – 4-in-1 GNSS antenna for marine & land robotics

The AT410 is a high-performance GNSS antenna that features Bluetooth, Wi-Fi and 4G connectivity as well as full-constellation GNSS tracking.

With low-noise and high gain, it has been specifically designed to simplify development of positioning-related applications for systems integrators.

AT410 GNSS antenna

More Information: AT410 GNSS Antenna

GNSS Antenna Comparison

Model AT190 AT360 AT410
Size ⌀27.5 * 59mm ⌀147 * 67.7mm ⌀135 * 26mm
Weight 25g ≤ 500g ≤ 200 g
Antenna Type Helix Geodetic Multifunction
GPS L1,L2,L5 L1,L2,L5 L1,L2,L5
BeiDou B1,B2,B3 B1,B2,B3 B1,B2,B3,B1C,B2a
Galileo E1,E5a,E5b E1,E5a,E5b E1,E5a,E5b,AltBoC
Polarization RHCP RHCP RHCP
Gain at Zenith 2dBi 5.5dBi GNSS: 5.5dBi
4G: 0.5dBi
LNA Gain 33 ±2dB 40dB ±2dB 40dB ±2dB

View our complete range of GNSS Antennas >

GNSS Receivers

N2 – Compact slimline GNSS receiver with built-in IMU

The N2 is a highly compact and lightweight GNSS receiver with IP67-rated construction for harsh environments. Tracking all current and future constellations, it provides over 20 hours of continuous usage on a single charge. The RTK-capable receiver features an integrated IMU for robust tilt compensation, as well as integrated UHF communications for operational ranges of up to 15 km.

ComNav N2 GNSS Receiver

More Information: N2

T300 – RTK GNSS receiver with built-in comms

The compact T300 features centimetre-level precision, a hot-swappable battery and built-in GPRS/GSM/4G communications. With full tracking of all current and planned GNSS constellations, it is ideal for unmanned survey vehicles operating worldwide.

T300 - RTK GNSS receiver

More Information: T300 

N3 – Low-power GNSS receiver with built-in IMU

The N3 is a low-power full-constellation GNSS receiver that provides over 24 hours of uninterrupted operations.

The integrated inertial sensors feature optimized algorithms and a simplified initialization process, delivering 2cm accuracy at 60° tilt. Enhanced UHF communications provide operational ranges of up to 15 km, and the receiver also supports WiFi, 4G and Bluetooth transmission.

N3 – Low-power GNSS receiver with built-in IMU

More Information: N3 

M900 – Rugged GNSS receiver with integrated IMU

The M900 is a rugged dual-antenna multi-constellation receiver with built-in IMU for enhanced continuous positioning capabilities. Featuring flexible Bluetooth/UHF/WiFi/4G communications, it includes a built-in webserver for easy configuration over LAN and WiFi. The IP68-rated unit is ideal for UGVs, USVs and machine control applications.

M900 GNSS Receiver

More Information: M900

M300 Pro – Full-featured GNSS module with remote control

The M300 Pro is a robust, future-proof full-constellation GNSS solution for land and marine applications. Featuring a user-friendly front panel display and a built-in webserver with high capacity and expandable memory, it provides full remote monitoring and control of configuration, status, firmware upgrading and more. Data can be transferred via RTCM, ComNav binary, NMEA, BINEX, and NTRIP protocols.

M300 Pro GNSS Receiver Module

More Information: M300 Pro

M300 Plus – GNSS receiver

The M300 Plus provides full tracking of all current and planned GNSS satellite constellations, and is ideal for marine and land-based unmanned systems as well as reference stations. It features powerful adaptive detection and cancelling technology for enhanced anti-jamming capabilities, maintaining high reliability even under adverse conditions. The compact, flexible receiver can transmit data either via Ethernet or 4G modem.

M300 Plus GNSS Receiver Module

More Information: M300 Plus

GNSS Receiver Comparison

Model Size Weight Consumption Application
N2 ⌀149 x 48mm 670g 1.8W Land/Marine Survey, Precision Agriculture, Machine Control
T300 ⌀158 x 75mm 950g 1.92W Topo / Marine / Construction Surveying, Geodetic Surveying
N3 ⌀155 × 73 mm 1200g 1.7W Topo / Marine / Construction Surveying, Geodetic Surveying
M900 185 x 171 x 56mm 1000g <3W Intelligent Transportation, Machine Control
M900 SE 185 x 171 x 56mm 1000g <3W Intelligent Transportation, Machine Control, Infrastructure
M300 Pro 202 x 163 x 75mm 2400g 3.5W Deformation Monitoring, Seismic Monitoring,Geodetic Surveying
M300 Plus 225 × 176 × 67mm <2000g <5W Deformation Monitoring, Seismic Monitoring,Geodetic Surveying

View our complete range of GNSS Receivers >

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