How Remote ID Positioning Works in Real-World Drone Operations?
Have you ever flown your drone and noticed that the displayed Remote ID position on the map does not align perfectly with the drone’s actual visual position?
In some cases, the displayed position may appear a few metres away or shift slightly while the drone is hovering.
This does not automatically mean the Remote ID tracker is malfunctioning.
A slight position shift can happen because Remote ID position data is calculated using GNSS, the same satellite-based positioning technology used across many navigation systems. Like any GNSS-based system, the displayed position can be influenced by satellite visibility, nearby structures, antenna placement, and signal quality.
In this article, Heron AirBridge explains how Remote ID uses GNSS to broadcast position data, why slight position shifts can happen in real-world environments, and what drone operators can do to get the most reliable performance from their Remote ID tracker.
How Remote ID Uses GNSS to Broadcast Position?
Remote Identification, or Remote ID, allows a drone or attached module to broadcast identification and position data during flight.
For Broadcast Remote ID, or BRID, this information is transmitted directly from the drone or module, using Bluetooth and/or WiFi protocols, to nearby receivers or compatible applications. This helps provide visibility of drone activity in the surrounding airspace without relying on a cellular network connection.
Remote ID position data is derived from GNSS, or Global Navigation Satellite System. GNSS includes satellite constellations such as GPS, Galileo, BeiDou, and GLONASS.
In a Remote ID system, the tracker receives GNSS signals, calculates its position, and broadcasts that position as part of its Remote ID message.
A GNSS receiver calculates position by listening to signals from multiple satellites. Each satellite broadcasts information about its location and the exact time the signal was sent. By measuring how long each signal takes to arrive, the receiver estimates its distance from each satellite.
The receiver then combines these distance measurements to estimate its own position. This process is called trilateration.
The number and quality of satellite signals matter. With more usable satellites and better satellite geometry, the displayed position is usually more stable. With limited satellite visibility, the position may become less precise.
| Satellite Signals Available | Positioning Output | What It Means |
| 3 satellites | 2D fix | Latitude and longitude |
| 4 or more satellites | 3D fix | Latitude, longitude, and altitude |
| More satellites with good geometry | More stable positioning | Better reliability, consistency and accuracy |
For drone operations, altitude is especially important because drones operate in three-dimensional airspace, not just on a flat map. A 3D position helps provide a more complete view of where the drone is operating.
Why the Displayed Remote ID Position May Differ Slightly?
GNSS performs best when the receiver has a clear view of the sky. In open areas, the displayed Remote ID position is usually more accurate because the tracker can receive stronger and more direct satellite signals.
In real-world environments, however, satellite signals do not always reach the receiver in ideal conditions.
This is especially common in places such as dense urban areas, ports and industrial facilities, areas near high-rise buildings, locations near glass, metal, or reflective surfaces, areas with bridges, cranes, or other large structures, and locations where the tracker’s antenna has limited sky visibility.
Several factors can affect GNSS signal quality:
Factor | What Happens | Possible Impact on Remote ID Position |
Signal blockage | Buildings, terrain, or structures block satellite signals | Fewer usable satellites |
Multipath error | Signals bounce off surfaces before reaching the receiver | Position may shift or drift slightly |
Poor satellite geometry | Satellites are clustered in one area of the sky | Position estimate may become less stable |
Atmospheric delay | Signals are slightly delayed as they pass through the atmosphere | Small timing errors may occur |
Antenna placement | The tracker’s antenna is blocked or poorly positioned | Weaker or less stable reception |
One common cause of slight position shifts is multipath error. This happens when GNSS signals reflect off buildings, glass panels, metal structures, or other surfaces before reaching the receiver.
Because the reflected signal travels a longer path, it arrives slightly later than a direct signal. The receiver may interpret this delay as additional distance, which can cause the displayed Remote ID position to shift slightly.
This behaviour is not unique to a specific product or brand. Any Remote ID system that relies on GNSS can be affected by satellite visibility, signal reflection, environmental conditions, and antenna placement.
A practical way to understand the displayed Remote ID position is:
What You Notice | What It May Indicate |
The displayed position is stable and close to the drone’s visual location | GNSS reception is likely stable |
The displayed position shifts slightly while the drone is hovering | Satellite signals may be affected by reflection, blockage, or surrounding structures |
The displayed position varies more near buildings, ports, or metal structures | The operating environment may be affecting GNSS reception |
The displayed position remains significantly offset in an open area after GNSS has stabilised | Tracker placement, antenna visibility, or support check may be needed |
The key is to interpret the displayed Remote ID position together with the operating environment. A slight offset does not automatically mean the tracker is performing incorrectly. In many cases, it reflects how GNSS-based positioning behaves in real-world conditions.
What You Can Do to Improve GNSS Reception?
If the displayed Remote ID position appears slightly offset or unstable, there are a few practical steps users can take to support better GNSS reception.
- Allow the tracker to acquire a stable GNSS fix before flight
Before taking off, give the tracker enough time to receive satellite signals and establish a stable position.
GNSS performance is usually better once the device has acquired enough usable satellites. This is especially important if the tracker has just been turned on, moved to a new location, or used in an area with limited sky visibility. - Check the tracker placement
Make sure the tracker is attached according to the user manual. Avoid placing it where the antenna may be blocked by the drone body, battery, payload, or other equipment. A clearer view of the sky helps improve GNSS reception and positioning stability. - Be aware of your operating environment
If you are flying near tall buildings, metal structures, bridges, cranes, or glass façades, small GNSS-based position shifts may occur even when the device is working normally.
This is especially relevant in urban areas, ports, industrial facilities, and other infrastructure-heavy environments. - Interpret the position together with the operational context
Remote ID data is most useful when considered together with other available information, such as visual observation, flight authorisations, airspace maps, flight logs, and the surrounding environment.
For example, if the displayed Remote ID position appears close to the boundary of a restricted area, it is helpful to consider normal GNSS positioning variation before drawing conclusions. - Monitor whether the behaviour is consistent
A small position shift in a dense urban or obstructed environment is usually different from a persistent large offset in an open area with clear sky visibility.
If the displayed Remote ID position remains unusually unstable in open-sky conditions after the tracker has acquired a stable GNSS fix, users should check the installation, restart the device if needed, and contact support for further assistance.
When to Contact Support or Use Specialised Positioning Tools?
Most small position shifts are related to normal GNSS behaviour and the surrounding environment. However, users should contact support if they experience unusual or persistent positioning issues, especially when flying in open areas with clear sky visibility.
You may want to contact support if:
- The displayed Remote ID position remains significantly offset in open-sky conditions
- The tracker cannot acquire GNSS after sufficient waiting time
- The position appears unstable across multiple flights and locations
- The tracker placement follows the user manual, but positioning remains inconsistent
For most Remote ID use cases, GNSS-based positioning is suitable for identification, compliance awareness, and situational awareness.
However, some specialised operations require a higher level of positioning precision. These may include land surveying, precision mapping, construction monitoring, or high-accuracy infrastructure inspection.
For these types of missions, operators may use separate positioning workflows, such as RTK-enabled drones or correction-based GNSS tools, alongside their Remote ID requirements.
In everyday Remote ID use, the priority is to make drone activity visible, identifiable, and easier to monitor. BRID supports this by broadcasting essential identification and position information during flight, while specialised positioning tools can be added when an operation requires a higher level of geospatial precision.
Conclusion
Remote ID is an important part of making drone operations more visible, accountable, and easier to identify. By broadcasting GNSS-based position and identification data, BRID helps operators and nearby stakeholders better understand drone activity in the airspace.
A slight shift in the displayed Remote ID position does not automatically mean the tracker is inaccurate. In many cases, it reflects how GNSS-based positioning behaves in real-world operating environments.
AirBeep-B is designed to make Broadcast Remote ID simple, lightweight, and accessible for drone operators. It supports practical drone visibility and compliance awareness by helping operators broadcast essential Remote ID information during flight.
Understanding how GNSS positioning works helps users interpret Remote ID data correctly, operate with greater confidence, and get the most value from their AirBeep-B in everyday drone operations.
Heron AirBridge is a Singaporean aviation technology company building the digital infrastructure for safe, scalable drone operations. Offering a suite of integrated solutions, including Network and Broadcast Remote ID, a comprehensive Fleet and Flight Management System, Unmanned Traffic Management System, and Remote ID Ground Sensors.
Heron aims to connect drones, data, and regulatory oversight—enabling seamless workflows and trusted, compliant operations for enterprises and authorities. Learn more at heron-airbridge.com.
