As this is my first post:
A big HELLO to the R/C Univerese in general and the Weatronics users in here in particular!

(If you don't care about my background skip the next sections and simply read my question at the bottom...)

I am looking forward to some hopefully productive exchange of ideas and information with all of you, especially since I am a total newbie to anything R/C flying and went in to this new hobby of mine with a little to much breadth and to little depth...
I started of wanting to scratch build a multicopter, paused that, switched to planes (as those--clearly--should be easier ), elected to start an autonomous conversion of a Guilllows C172 (mind you I have never build an aircraft before), got frustrated over all the power/weight concerns, paused that, and started to look into R/F equipment...
Knowing that R/F is as close to voddoo magic as an educated EE can allow, I opted to make this the one thing I wanted to keep COTS and simply by "the best" that is out there... and as you might have guessed, I decided that--for me at least, and only based on spec sheet reading--Weatronic will be the best. (Ok, I also am a little biased as I am German, too.). Anyways, not having enough toy money to go all in I elected to combine a DV4 with a--don't judge me--Turnigy 9XR (why spend money on gimbals now if I can buy a BAT 60 later?).
That has been working out fairly well so far and actually is the first R/C project I actually finished (see http://www.thingiverse.com/thing:454290).
With that said, working my way back out again, it is now time to finish that Guillows C172 conversion...

Neither having the weight nor the financial budget, I can neither afford a MUX box nor a LinkVario in the Guilllows. Wanting to "learn" about the Weatronics system, I have a Smart 8 that is in there and, yet again looking forward/back to my goal of having an autonomous multirotor, I have a small UBlox7 in the Guillows C172 that I want to use as a sensor.

I am somewhat experienced with (embedded) electronics and really want to use Weatronic systems for autonomous multirotro systems (Weatronics is FCC legal, has presumably a superb range, telemetry, redundancy, etc. pp. -- i.e. all great things for the "harsh" R/F environment one expects to see on a multirotor. (I do realize that most of you folks here are mainly coming from the other side of the R/C model spectrum--jets--but I believe there is sufficient money in the "DIY multicopter scene" for Weatronics systems, especially given their apparent benefits).

As multirotors require some onboard stability augmentation, pretty much all flight computers compute their own navigation solution from exactly those sensors a prudent safety pilot would like to get information from: GPS, airdata (static and dynamic pressure), magnetic orientations, accelerations and rotations. I.e. all that is necessary to compute attitude and position. But how could I get this data down to me?

My question: Is there any information "out there" about the data protocol used by Weatronic for their telemetry? I.e. what do I have to feed to the "SCU Port" (what does that actually stand for, btw?) to get the Weatronic system to recognize it as valid telemetry data?
(As I said, I have some experience in embedded electronics, so I guess I am simply (?) asking for the protocol description of the I2C/SPI/serial protocol used for Weatronic telemetry.)

Thanks for any shared insight, feedback, or even just a "man, you are stupid"-response