Frsky compatibility

Did you connect PA_EN and LNA_EN both to Vcc as you said, or to VCC and GND as the pins say? I don't recall how the module is wired, but connecting LNA_EN to Vcc is unlikely to work very well. This module also requires an antenna to be properly attached. If it is not, it won't work well at all.
Also, what version of Deviation are you running? You need to be running a current nightly build, but I made a big turnin yesterday to switch to a newer version of libopencm3 and I haven't tested it on any hardware as yet. Possibly it doesn't work as intended.

You should not need to change the course/fine adjustments. They were only for module debugging.

no. it means you should leave it at 0 and not change it. As I said, there is no reason to modify these values.

you cannot use telemetry unless you wire up the module as I specified. specifically you need to follow the table here:
bitbucket.org/PhracturedBlue/deviation/wiki/ModuleList
for the 'CC2500 Skyartec' module.
connect pin 6 to pin 10
connect pin 7 to pin 9

the pins are color-coded in the image here:
bitbucket.org/PhracturedBlue/deviation/w...showasparticleid1977

The note about '4.0.1 and earlier' DOES NOT APPLY to you, since you are running the nightly builds.

Edit: Fixed pin connections

yes telemetry will just work when using a multimodule.
I believe all frsky transmitters will be compatible with Deviation, though the newest ones will need to run in compatibility mode for telemetry until I add S.Port support.

I just double checked. You said:

Fernandez wrote: List of pins:
1-Gnd, 2-Vcc, 3-SI, 4-SCLK, 5-SO, 6-GDO2, 7-GDO0, 8-Csn, 9-TxEn, 10-RxEn

But the pic on the Bangood website says:

1-Vcc 2-SI 3-SCLK 4-SO 5-GDO2 6-GND 7-GDOo 8-CSn 9->PA_EN 10-LNA_EN

The bangood connections match the connections I have listed on the wiki. I assume your module looks like this as you said:
bitbucket.org/PhracturedBlue/deviation/w...showasparticleid1977

If so, pin 5 connects to pin 10 and pin 7 connects to pin 9 (there was a typo above, but the Wiki is labeled properly). The colors listed in this image correctly show these connections as well.

If your module doesn't look like that, then please post an image of what your module DOES look like.

That is not the module shown in banggood's page. On the top board there is a device attached between pins 2 and 3 on your module that isn't in their picture. On the ottom board, the pin order is different. This is important because if someone bought it to plug into a MultiModule, they'd be very disappointed.

I would recommend posting a review detailing the differences on their site so noone is misled.

On the module you have, the wiring looks ok.