Selector Command with the XPDR_1_set [closed]

Question

The XPDR in the MD80 has an outer 4-pos rotary switch and an inner encoder I would like to replicate. The inner encoder sets the value 1-8. The outer rotary switch selects the digit 1-4 for the encoder to operate. I thought I could replicate this by choosing a Rotary Switch Selector function for the rotary switch. But the XPDR_1_Set through XPDR_4_Set doesn't seem to have the option to depend on the Selector command. Would you suggest any workaround on this?

Answer 1

Carsten,
I'm working on some  configurator sections now (DME and XPDR), and there will be  all possible options added (I believe so), including several ATC/TCAS modes.
Can you give me a links to tech docs for this type of unit? Or point to it's photos.

Currently the TT31 model allows you to do the (almost) similar action -  you press the ENT, then rotate the knob, then press ENT again and so on. So, it will be  easy to add new function for the position rotary switch.
Vlad

Comments

Heres a foto of the Rotate MD-80 (virtual) transponder

---

OK, I got it.
Will be included soon.

But please clarify - is this a real type of transponder or is it just used in a virtual plane.
 As I see this is a screenshot from your v-plane, but is there a real type of such a XPDR configuration?

I mean that I didn't find a such, usually the outer knob is used to set  2 left digits.

I need a real documentation.
Vlad

---

That's a great question. The Rotate MD80 is certainly very accurate in other aspects. I've got an old version of the SOPs from Delta. The XPDR there is of a different kind. I'll have to make som research on this... I've now made a question to Rotate's own developerteam...

---

I got this answer from RotateSim developmentteam:

"Hi Carsten.

Unfortunately I cannot share any official documentation, but if I remember correctly this is the one (or very similar) modeled in our simulation:
https://www.hilmerby.com/md80/md_tcas.html

Regards Cucoman"

So this is the same document I found myself from a formerly Airline Pilot Mr. Hilmerby. These docs shows the same behavior as you describe. Not the way it is simulated in the Rotate sim.

---

Carsten,

Yes, and this is how it's done in the Laminar MD80.
So, you can just use it it should be  - two encoder knobs.

The radio equipment is fully independent of the plane model, you can build it as real, and everything will work fine.

---

You are right. The Laminar MD80 is actually more precise in this one area. I'll go with this double encoder style and throw away the rotary switch/encoder coaxial combo I've already made. Thanks for the help anyway...