I'm using it with the Spektrum WS2000 wireless dongle, and the Spektrum iX12 transmitter.
My mission was to get used to the transmitter feel and switches etc. on the sim since the iX12
is totally new to me.
So far, so good.
Congratulations! ... nice job.
My radio profile does NOT use Software Radio Mixes, or Software DR/Expo.
This is fine; but, be aware that your sailplanes will not work ( using iX12 ) if you do not have the Software Radio Mixes set ON. That is because most of them use "crow" spoilerons ( on throttle lever ). Just be aware; I use a separate Radio Profile for sailplanes, but I do have a Radio Profile that works for both planes and sailplanes.
In the profile screen it looks like the options named, Slider, Dial, and Y Rotation Axis aren't assigned to
a channel in my transmitter.
The 'Input' config options ( blue bars ) in the Select Controller Editor are very misleading; this has been an on-going 'bug' issue with RealFlight and continues into RealFlight9.
Slider, Dial, and Y Rotation (in order) are Radio Profile functions ElevDual Rates, Flaps, Smoke (gear) (in order).
The Radio Profile functions are not labeled very well either (an opinion).
Smoke can be 'smoke' but is usually the gear, on planes that have retracts.
ElevDual Rates is the dual rate function input, when using software D/R.
Flaps is used for 'flaps' but usually needs a channel assigned.
Channel (8) -mode Z rotation is the 'modes' for SAFE, AS3X, Agility, etc.
The first thing you need to do is to set some switches on some of your (12) channels, in the iX12.
I put switch (B) on Aux1, and I use that channel for my modes input on Radio Profile channel (8).
I put switch (C) on Aux2, and I use that channel for my 'Rates' or 'slider'.
I put switch (D) on Aux3, and I use that channel for my 'flaps', with a delay so they don't 'snap'.
On the iX12 you have Aux1 - Aux7 to play with; be creative. On the iX12 the gear channel is called Whl (for wheels) and I usually put switch (A) on this channel for gear... in Model Setup | Channel Assign.
Leave the channels AUX1:Aux1, AUX2:Aux2, etc.
In System Setup | Channel Assign set switch (A) to Gear, or Whl, switch (B) Aux1, switch (C) Aux2, switch (D) Aux3. (there is huge flexibility here... do what is consistent and makes sense to you)
Then, on the simulator, in the Select Controller Editor, press the blue bar 'slider' and then toggle switch (C) to set your 'rates'. Press blue bar 'Dial' and then toggle switch (D) to set your flaps input. Press blue bar 'Y Rotation' and then toggle switch (A) to set your gear (Whl) |smoke. Press blue bar 'Z Rotation' and toggle your switch (B) to set your 'modes' on Radio Profile channel (8).
I have to stop there because my DX8G2 is has only eight channels. But, you have (12) so you can assign Aux4 to switch (I) which can be used for either the panic button, or the 'reset'. When I'm using my WS2000 I just use the spacebar on my keyboard for the 'reset' button, but I have used the (I) button ( 27 on your iX12 ) for the 'reset' following a crash.
I am not able to set my 'Clear' button to be 'reset'. On the iX12 the Android panel may have a 'Clear' or 'Reset' that may be assigned to a channel, but I'm not sure about that; pull out the manual.
Best of luck to you.
marcus