FAQ

Having a precise GPS is crucial to ensure your ride is recorded as accurately as possible. It's always frustrating when your GPS hardware isn’t precise enough, leading to situations where waypoints aren't validated/cleared properly, or you incur speeding penalties. This picture illustrates the issue: the GPS signal has shifted slightly, the accuracy is low, or there aren't enough satellites available (red: planned route, green: actual trace with inaccurate GPS). When using GPS in challenging environments like forests, cities, or mountains, issues with satellite reception can still occur, even with an external antenna. Although rare, it's possible for satellites to be in positions that negatively affect signal accuracy. To improve reliability, consider upgrading your hardware, adding an external antenna, or using an external GPS receiver.

Having a fast GPS is crucial for ensuring the "RBR Roadbook Reader" operates smoothly, like a responsive analog instrument. The external Bluetooth GPS Receivers utilize a lightning-fast GPS, providing updates 5-10 times per second! This rapid update rate ensures that your CAP headings and speeds are updated as quickly as you can react. As a result, you won't face penalties, and your navigation remains super-smooth with precise, straight-line tracking.

On the flip side, a slow update rate can lead to overcompensation by the rider, reacting to outdated data while waiting for new information. This often results in braking too late for speed zones and accumulating penalties. For instance, a typical Garmin handheld GPS updates only once every 2 seconds (½Hz).

CAP (heading/bearing) value can be inaccurate or fluctuate.
This is not a bug - it's a known behavior of GPS technology:

• CAP (bearing) is calculated based on GPS movement - the direction from one GPS point to the next.
• If the rider is stationary or barely moving, there’s no "next point" to compute a meaningful direction from, so the app might show a wrong or fluctuating heading.
• CAP becomes reliable only when the rider is moving at a decent pace (usually above ~5 km/h).
• 📌 Tip: For best CAP accuracy, always start riding a few meters in a straight line - the system needs motion to determine direction.

"GPS Connector" App
Instructions using "GPS Connector" App

"Bluetooth GNSS" App
Instructions using "Bluetooth GNSS" App