MCNAV TX73

3D excavator guidance system combining RTK GNSS + IMU for real-time bucket-tip accuracy.
Accuracy: H 8 mm + 1 ppm, V 15 mm + 1 ppm; IMU ±0.05° static / ±0.1° dynamic.
Display: MCPad300 10.1″ (1920×1200), rugged IP67, intuitive 2D/3D views and wizards.
Connectivity: 4G LTE, Wi-Fi, Bluetooth; UHF 410–470 MHz (Rx); CAN, RS-232.
Files & radios: LandXML, DWG, DXF; coord files .dc/.cal/.jxl/.lok/.loc; TT450S, Transparent, Satel_3AS.
Components: MC300 receiver, IS300 IMU (IP69K), AT315 antenna (IP68) + cabling/mounts.
Use: dig to design faster with fewer stakes and less rework; supports tilt/tilt-rotator buckets.

Trusted dealerDirect manufacturer partnership
Pan-India deliveryInsured shipping, all states
Post-sale supportTraining + service included

Overview

What makes it work

MCNAV TX73 is CHCNAV’s next-generation 3D guidance system for excavators. It fuses a high-precision GNSS receiver with rugged IMU sensors to compute real-time bucket-tip coordinates against project design models, helping operators dig directly to target surfaces with fewer stakes, less rework, and higher productivity. The MCPad300 10.1″ display delivers high-fidelity 3D visualization, quick 2D/3D view switching, and operator-friendly calibration wizards. Remote access, data sync, and online updates are supported via CHCNAV’s iSite cloud, while industrial-grade components (MC300 receiver, IS300 IMU, AT315 antenna) provide job-site durability.

System-level specs (TX73 excavator guidance system)

Item	Spec
System type	3D excavator guidance system
Guidance / views	2D & 3D views; high-fidelity CAD visualization; large-font/top/side modes
UI & workflow	Customizable shortcuts; layer-based control; real-time progress (color-coded maps)
Connectivity	iSite cloud for remote access, troubleshooting, data sync & online updates
Radio protocol compatibility	TT450S, Transparent, Satel_3AS
Design file support	LandXML, DWG, DXF; coordinate system files: .dc, .cal, .jxl, .lok, *.loc
Typical kit components	MCPad300 display, MC300 GNSS receiver, IS300 IMU sensor, AT315 GNSS antenna
GNSS RTK positioning (receiver)	Horizontal: 8 mm + 1 ppm RMS; Vertical: 15 mm + 1 ppm RMS
IMU attitude accuracy	Static ±0.05° RMS; Dynamic ±0.1° RMS
Ruggedness (ingress)	Display: IP67; Receiver: IP67; IMU: IP69K; Antenna: IP68
Shock / vibration (typical)	IS300: 50 G/11 ms; AT315: 40 G/11 ms; Vibration (IS300/AT315): 7.7 Grms, 10–1000 Hz
Power (typical)	Receiver 7–36 V DC; IMU 7–36 V DC; Antenna 3.3–12 V DC

Included hardware (dimensions, weight, key tech)

Component	Size (W×L×H)	Weight	Core details	Operating temp	Storage temp	Ingress
MCPad300 Display	281×181×42 mm	1.5 kg	10.1″, 1920×1200; Android 14; 8-core up to 2.2 GHz; 6 GB RAM + 64 GB ROM	−30 °C to +60 °C	−30 °C to +70 °C	IP67
MC300 Receiver	215×154×58 mm	1.11 kg	RTK: H 8 mm+1 ppm; V 15 mm+1 ppm	−30 °C to +65 °C	−40 °C to +85 °C	IP67
IS300 IMU Sensor	48.9×109×27.3 mm	0.115 kg	Static ±0.05° RMS; Dynamic ±0.1° RMS; Shock 50 G/11 ms; Vib 7.7 Grms	−40 °C to +75 °C	−50 °C to +85 °C	IP69K
AT315 GNSS Antenna	40×140×55 mm	0.7 kg	Gain 40 ± 2 dB; Noise coeff. ≤ 2 dB; Shock 40 G/11 ms; Vib 7.7 Grms	−40 °C to +75 °C	−50 °C to +85 °C	IP68