Comparison test: RX2SIM against other USB simulator adapters

Comparison test: RX2SIM against other USB simulator adapters

I used a Futaba T14SG with a Futaba R6008HS receiver. The servo travels are default with the settings being -100 to +100. This could be increased to -130 to +130 if necessary.

RX2SIM
- Mode: Purple = Game Controller: 8 proportional channels
-> The channel noise is 0.0488 (range is from 40.8 to -41). Although it is a radio connection, the transmission quality is excellent. No disturbing smoothing filter is recognisable.

'Wireless 9 in 1 Simulator Adapter' (HobbyKing)
- Mode XTR: 4 proportional channels, 3 buttons
- Mode RealflightG: 5 proportional channels, no buttons (because they are flickering)
- Mode Aerofly: 6 proportional channels, 1 button
- Mode Phoenix: nothing
-> Channel noise in cordless mode: 9.4118, range of values: 75 to -87. When I look at the stick presentation, I see continuous minimal stick movements. A word of caution: Do not use this adapter in wireless mode as controls certainly feel negatively influenced by the adapter.
-> Channel noise in cable mode: 0.0000. This is because a smoothing filter is active within the interface. Another downside is that even smaller inputs are smoothed out and/or get lost.

'USB Simulator cable XTR/AeroFly/FMS' (HobbyKing)
- 4 proportional channels, 3 buttons
-> Channel noise: 1.5686, range of values: 84 to -80

'Original Reflex XTR Interface' (in joystick mode)
- 6 proportional channels
-> Channel noise: 0.7843, range of values: 85 to -78

'USB Flight Simulator Cable Super Sim X, All-In-One' (Mode 2)
- 5 proportional channels, 3 buttons
-> Channel noise: 0.0000, range of values: 84 to -80

Conclusion: My purchase recommendation is the RX2SIM, since this adapter has the highest signal quality and it can be used universally because of the 8 channels. The additional channels are very useful. With one channel, 4 flight conditions can be switched and the motor can be switched on and off. A further channel can be used for the autorotation training. Whatever channel assignment your transmitter has been setup to, the channels are always visible in neXt. This is the main problem with the Chinese interfaces.

All the best,
Klaus