Sentrius RG191+LTE
User Guide
https://www.lairdconnect.com/
24
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Radio Center Frequencies
Each radio is assigned a center frequency. Channels are then assigned to each radio and given an offset from the center
(
).
Figure 28: Channel assignments
Channels
Channels are enabled and assigned to either radio. Each radio can have up to five channels assigned to it.
The channel’s frequency is an offset of its radio’s center frequency. For most channels with a 125-kHz bandwidth, the offset
can be -0.4 to +0.4 MHz.
LoRa STD and FSK channels have configurable bandwidth. For these channels, when operating in 250-kHz or 500-kHz
bandwidth, the offset can be -0.3 to +0.3 MHz.
Each channel should be placed at least 200
kHz from any other channel, otherwise the channel’s bandwidth overlaps. While
this configuration still functions, there is wasted bandwidth. The interface displays a warning and marks each channel in red if
they overlap (
). Channel configuration is shown in
Figure 29: Channels window
