HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
---|---|---|---|---|---|
8526100040 | Doc | 55.0% | CN | US | 2025-05-12 |
8526910020 | Doc | 55.0% | CN | US | 2025-05-12 |
9014206000 | Doc | 55.0% | CN | US | 2025-05-12 |
9014804000 | Doc | 55.0% | CN | US | 2025-05-12 |
9029204080 | Doc | 55.0% | CN | US | 2025-05-12 |
9029204040 | Doc | 55.0% | CN | US | 2025-05-12 |
Global Positioning System
The Global Positioning System (GPS) is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It provides geolocation and time information in all weather conditions, anywhere in the world, whenever there is adequate signal reception.
Material & Technology
GPS relies on a constellation of approximately 31 satellites orbiting Earth. These satellites transmit signals containing precise timing and orbital data. Receivers on the ground utilize these signals to calculate their position through a process called trilateration.
Key components include:
- Satellites: Each satellite contains atomic clocks for precise timekeeping.
- Ground Control Segment: A network of tracking stations monitor and control the satellites.
- User Equipment (Receivers): These devices process signals from the satellites to determine location, velocity, and time. Modern receivers often incorporate microprocessors and antenna technology for improved accuracy.
- Radio Signals: GPS uses L-band radio frequencies for transmission.
Purpose
The primary purpose of GPS is to provide accurate positioning, navigation, and timing (PNT) services. It supports a wide range of applications including:
- Navigation: Determining routes for vehicles, aircraft, ships, and pedestrians.
- Mapping & Surveying: Creating accurate maps and conducting precise land surveys.
- Timing: Synchronizing clocks for communication networks, financial transactions, and scientific research.
- Tracking: Monitoring the location of assets, vehicles, and personnel.
Function
GPS functions through trilateration. A receiver measures the time it takes to receive signals from at least four satellites. Knowing the speed of light and the precise location of the satellites, the receiver calculates the distance to each satellite. These distances are then used to determine the receiver's three-dimensional position (latitude, longitude, and altitude). The fourth satellite is used to correct for errors caused by inaccuracies in the receiver's clock.
Usage Scenarios
GPS is utilized in a vast array of applications:
- Automotive Navigation: In-car navigation systems, smartphone map applications.
- Aviation: Aircraft navigation, air traffic control.
- Marine Navigation: Ship navigation, fishing, sailing.
- Hiking & Outdoor Recreation: Handheld GPS devices, smartphone apps for trail tracking.
- Emergency Services: Locating individuals in distress, coordinating rescue operations.
- Precision Agriculture: Guiding tractors and other farm equipment.
- Military Applications: Navigation, targeting, surveillance.
- Scientific Research: Monitoring tectonic plate movement, studying weather patterns.
Common Types
- Standalone GPS Receivers: Dedicated devices for navigation and tracking.
- Integrated GPS Receivers: Built into smartphones, tablets, and other electronic devices.
- Differential GPS (DGPS): Utilizes ground-based reference stations to improve accuracy.
- Assisted GPS (A-GPS): Uses cellular networks to accelerate the initial acquisition of satellite signals.
- Augmented Systems: Systems like WAAS (Wide Area Augmentation System) and EGNOS (European Geostationary Navigation Overlay Service) enhance accuracy and reliability.
Based on the provided information, “gps” can be interpreted as a type of radio navigational aid apparatus or instruments used for aeronautical/space navigation. Here's a breakdown of relevant HS codes:
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8526100040: This code covers Radar apparatus, radio navigational aid apparatus and radio remote control apparatus: Radar apparatus. Chapter 85 relates to electrical machinery and equipment. Heading 26 specifically addresses radar, radio navigational aid, and remote control apparatus. Subheading 100040 further specifies radar apparatus. The tax rate details indicate a base tariff of 0.0%, an additional tariff of 25.0%, and a 30% additional tariff after April 2, 2025, resulting in a total tariff of 55.0%.
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8526910020: This code covers Radar apparatus, radio navigational aid apparatus and radio remote control apparatus: Other: Radio navigational aid apparatus Reception only apparatus. Similar to the previous code, this falls under Chapter 85, Heading 26. However, this specifically covers other radio navigational aid apparatus that are reception-only. The tax rate structure is identical to 8526100040: 0.0% base tariff, 25.0% additional tariff, and 30% after April 2, 2025, for a total of 55.0%.
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9014206000: This code covers Direction finding compasses; other navigational instruments and appliances; parts and accessories thereof: Instruments and appliances for aeronautical or space navigation (other than compasses): Other: Electrical. Chapter 90 covers navigational instruments. Heading 14 focuses on direction finding compasses and related instruments. Subheading 206000 specifies electrical instruments for aeronautical or space navigation (excluding compasses). The tax rate details are consistent with the previous codes: 0.0% base tariff, 25.0% additional tariff, and 30% after April 2, 2025, totaling 55.0%.
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9014804000: This code covers Direction finding compasses; other navigational instruments and appliances; parts and accessories thereof: Other instruments and appliances: Other: Other: Electrical. This also falls under Chapter 90, Heading 14, but covers other navigational instruments and appliances, specifically electrical ones. The tax rate structure mirrors the others: 0.0% base tariff, 25.0% additional tariff, and 30% after April 2, 2025, for a total of 55.0%.
According to the provided reference material, the HS code options related to 'gps' are limited, with only the following 4 found.