Flysky FS-i6X, 10 channel from Banggood, buy without receiver.
Turnigy / flysky 9X8Cv2 receivers, again from banggood.
Transmitter, system, rx setup, change to AFHDS. not AFHDS 2A.
bind as normal, watch led in receivers, steady when bound. TX will not confirm as bound.
As a test, I have 2 receivers on my workbench working from 1 transmitter.
As Steve says, does not channel hop, or receive telemetry from the RX units