X20/X20S and Ethos v1.5.0 User Manual
TW Mode
In TW mode there is one 2.4G FSK and one 2.4G LoRA RF link for use with up to three
TWIN receivers plus a 900M receiver option for redundancy (via the SBUS IN/OUT ports).
There can be three TW receivers registered and bound or three 900M receivers registered
and bound or a combination of TW and 900M for a total of three receivers.
In TW mode with a combination of 2.4G FSK and 2.4G Lora and 900M receivers the
telemetry for the 2.4G and 900M RF links are active at the same time. The sensors are
identified in telemetry as 2.4G or 900M. Please note that the 2.4G band supports 24
channels, while the 900M band supports 16 channels.
Please see the following sections for configuration details.
Type
Transmission mode of the internal RF module. The mode must match the type supported
by the receiver or the model will not bind! After a mode change, carefully check model
operation (especially Failsafe!) and fully verify that all receiver channels are functioning
as intended.
Type: TW Mode
The way receivers are bound and connected with the transmitter is broken into two
phases. The first phase is registering the receiver to the radio or radios it is to be used
with. Registration only needs to be performed once between each receiver / transmitter
pair. Once registered, a receiver can be bound and re-bound wirelessly with any of the
radios it is registered with, without using the bind button on the receiver.