GPS receiver
Dual XGPS160
SkyPro Bluetooth GPS receiver
What it sends
- Its position to the iPhone's Location Services, which SpeleoMap reads.
- The entrance fix records that it came from the receiver.
Setup
- Pair it in iOS Settings, Bluetooth, then in SpeleoMap, Settings, Devices, turn on GPS Receiver and tap Check receiver outside. The source shows as EXTERNAL GPS
- Dual says it works with most apps that need GPS: check yours with Check receiver.
Any receiver that feeds the iPhone's Location Services works: SpeleoMap reads location the way every iPhone app does. Some receivers only work inside their maker's app, so check before you buy.