NVITE | installation guide
21/40
Ranging profile
The NVITE reader can advertise the requested BLE read range in its device name.
BLE ranging must be implemented in the mobile-app!
Choose one of the BLE read range profiles:
P
Proximity range
S
Short range
M
Medium range
L
Long range
Figure 9: Top view BLE ranging profiles
In theory, Bluetooth is omnidirectional, which means that the signal strength is the same in all directions (see Figure 9).
However, the signal can also be influenced by surrounding objects like a concrete wall behind the reader or a metal
object or fluid nearby. As a result, the signal strength and therefore the read range might not be the same at all
positions around the reader. In that case, the ranging profiles as drawn in Figure 9 won’t be circular, but more
capricious of shape.
Ranging fine tune
Set the ranging fine tune slider to a positive value to increase the read range.
Decrease the ranging fine tune slider to get a shorter read range.
The ranging fine tune slider value will adjust the tx power value in the advertising message.
Be careful with setting the read range too short. There is a lot of variation in performance of Bluetooth communication
across the wide range of available smartphones. Please take this into account when configuring the reader(s).
BLE ranging must be implemented in the mobile-app!
S
L
M
P
-1
-2
wall
fine tune (advanced setting)
ranging profile
+1
