X20/X20S and Ethos v1.5.0 User Manual
Range check is activated by selecting 'Range check'.
A voice alert will announce ‘Range check’ every few seconds to confirm that you are in
range check mode. A popup will display the receiver number, and the VFR% and RSSI
values to evaluate how reception quality is behaving. When the range check is active,
it reduces transmitter power, which in turn reduces the range for range testing. Under
ideal conditions, with both the radio and receiver at 1m above the ground, you should
only get a critical alarm at about 30m apart.
Currently TD MODE in range check mode provides range check data for one receiver at
a time on the 2.4G link and one receiver at a time on the 900M link. If you have three
2.4G receivers registered and bound as Receiver 1, 2 and 3, one of the receivers will
be the active telemetry receiver and its number will be displayed by the RX sensor as
0, 1, or 2. That will be the receiver that is sending the RSSI and VFR data. If you turn
that receiver off the next receiver will become the active telemetry receiver in a
priority of 0, 1, and then 2. Each of the three receivers can be range checked by
turning off the other receivers.
RX sensor 0 = Receiver 1
RX sensor 1 = Receiver 2
RX sensor 2 = Receiver 3
Please also refer to the Telemetry section for a discussion on VFR and RSSI values.
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