Using Fulcrum’s web editor with satellite imagery base layer, I created my “Benchmark” point locations to collect data against with a variety of properties: 2 points with wide open sky, 2 with small building obstructions right next to picnic shelters, and 1 point underneath some thick tree canopy cover. My strategy was to pre-select a number of locations within a local park to perform the experiment.
#Dual xgps150a bluetooth gps receiver routebuddy android
Nexus 7 Android tablet, paired with Dual XGPS-150.iPhone 5S, built-in GPS antenna with Wi-Fi and cellular LTE enabled (for assisted GPS).These were my two configurations to compare:
The XGPS advertises an accuracy range of ☒.5 meters, which should be significantly better than the consistency of the iPhone’s onboard receiver. We decided to record readings from a few types of devices and use them in a controlled setting to see what type of results we could get on position and precision.įor this experiment, I wanted to see what kind of improvement in data quality could be achieved by using an external Bluetooth GPS unit, in this case the Dual XGPS-150, an affordable, cross-platform GPS receiver. In order to better understand what sort of accuracy results can be had with different device configurations, we set up a quick experiment. There’s also a growing universe of 3rd-party aftermarket devices that can be paired to smartphones or tablets using Bluetooth, allowing users to override the onboard device readings or add new capabilities not otherwise available out of the box. Users of Fulcrum frequently ask about our experiences with the built-in GPS antennae on iPhones, iPads, and the myriad of Android devices available to find out what sorts of positional accuracy and precision they can expect to get using different flavors of hardware. The onboard GPS hardware built into consumer smartphones has improved immensely over the years, along with the software technology to help augment positional accuracy automatically using other sources of data, like cellular and Wi-Fi signals.
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