VK‑172 USB GPS Module GPS GLONASS Dual‑System Satellite Positioning Receiver External USB GPS Antenna Module For Laptop Navigation DIY Project

VK‑172 USB GPS GLONASS Receiver Module

📌 Product Overview

VK‑172 is a complete satellite positioning receiver. It comes with built‑in satellite receiving antenna and advanced positioning core chip, delivering high‑precision positioning data, satisfying industrial‑grade positioning requirements as well as daily personal usage scenarios. Widely applied for car navigation, security monitoring, map surveying & mapping, field survey and agricultural positioning projects. Built‑in button battery stores satellite ephemeris, historical position and time data, greatly shorten cold‑start positioning time. Integrated WAAS/EGNOS demodulator, no extra hardware needed to receive SBAS correction signal. Output standard NMEA0183 V3.01 data protocol.

⚙ Main Technical Parameters

Item	Parameter
Main Chip	G7020‑KTC/A, 1.023MHz code rate
Reception Band	L1 1575.42MHz
Reception Channels	56 CH
Positioning Accuracy	<2.5M(Autonomous 50%); <2M(SBAS)
Velocity Accuracy	<0.1M/S
Direction Accuracy	<0.5 DEGREES
Timing Accuracy	30 NS
Coordinate System	WGS‑84
Max Altitude	50000 m
Max Speed	500 M/S
Max Acceleration	<4G
Tracking Sensitivity	‑162DBM
Acquisition Sensitivity	‑160DBM
Cold Start	29S (average)
Warm Start	28S (average)
Hot Start	1S (average)
AGPS Time	3S
Default Baud Rate	9600BPS
NMEA Sentence	GGA, GSA, GSV, RMC, VTG, GLL
Position Update Rate	1‑10Hz (default 1Hz)
Operating Temperature	‑40℃ ~ +85℃
Power Supply	3.3V‑5V USB power supply
Interface	Standard USB‑A
Module Dimension	60249mm
Module Weight	11g
Gross Weight(with package)	26g

✨ Core Features

✅ High‑sensitivity built‑in GPS satellite antenna ✅ Adopt KDS 0.5PPM high‑precision TCXO crystal oscillator ✅ RTC crystal & backup capacitor for fast hot‑start ✅ Adjustable 1‑10Hz positioning update frequency ✅ PPS positioning indicator LED, flash after positioning lock ✅ Support ASSISTNOW ONLINE / OFFLINE A‑GPS auxiliary positioning ✅ Multi‑system hybrid engine: GPS, GALILEO, SBAS(WAAS,EGNOS,MSAS,GAGAN) ✅ Plug‑and‑play USB interface, compatible with Windows 7/8/10/11, Windows CE, Linux system

🚗 Application Scenarios

• Automotive navigation • Fleet management • Marine navigation • Field surveying and mapping • Security monitoring system • Agricultural positioning collection

⚠ Important Usage Notice

Kind reminder: If there are version differences or images not been updated, please refer to the actual product.