Geneq iSXBlue II GNSS Series Technical Reference Manual page 154

Q - What should I do if I have a Bluetooth connection with the iSXBlue View app without streaming
Data?
A –The iSXBlue might paired on Bluetooth but when launching the ISXBlue View app there is no
reception of NMEA message. Make sure to connect an antenna to the iSXBlue before you do any
connection because the iSXBlue View app has to track a position before starting replacing the values
from the core location with the values from the external GPS (iSXBlue). See examples below.
Q - What should I do if I have data from internal GPS using my Android and a GIS app?
A –The iSXBlue/SXblue might paired on Bluetooth using the Bluetooth GPS app as a tool but still
receive value from the internal GPS. You must enable the Developer Options same as the Mock locations.
On the front page, you must also enable the Mock GPS Provider to allow the iSXBlue/SXBlue take over
the current GIS app. See examples below.
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iSXblue/SXBlue II GNSS Series Technical Reference Manual