Laird Sentrius RG1xx, Руководство пользователя

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Sentrius RG1xx
User Guide
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/ramp 20
© Copyright 2018 Laird. All Rights Reserved
Americas: +1-800-492-2320
Europe: +44-1628-858-940
Hong Kong: +852 2923 0610
7.3 Radios
The radio page provides configuration of the radios and channels. The LoRa card has two radios (Radio 0 and
Radio 1). This interface allows advanced users to change radio and channel assignments within the allowed
range per the gateway region. Depending on the forwarder being used, the radio configuration may not be
available.
7.3.1 Channel Plan Graphic
At the top of the Radios page is a graphic representation of the full bandwidth range, channels, and radios.
This graphic is different for gateways operating in US mode and EU mode.
7.3.2 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 23 ).
Figure 23: Channel assignments
7.3.3 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 frequenc y. 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.