Hello guys,

New to RXP, already compreted the setup for my FSW LJ35A, but i notice the transponder is not working. I mean, the code changes as per introduced in the GTN(To IVAO Altitude - client i use), but the     turn on(C Mode) / off    or    ident     functions are not working.

I notice my setup seems correct - Transponder is enabled, but not sure if i got to do something else:

Ive read around about a script, but not sure if today(2022) i really need to mess with those settings to get it work.   

I use FSUIPC, let you know because ive seem several mods around but again, im not sure if it is needed.

Thanks in advance for your support,

😕

Hi,

Do you mean

- When you change the XPDR setting on the GTN it reverts back, or

- When you change the XPDR setting it stays put, but it doesn't change in the simulator?

 

Hello Jean, Thank you...

I mean the 2nd option:      When you change the XPDR setting it stays put IN THE GTN , but it doesn't change in the ¿simulator? nor the IVAP/Altitude...

I still have to turn it on and off manually for the network.

Edited March 6, 20224 yr by Raphael_Chacon

Any workaround....

I'm not sure I fully understand your problem BUT: if you're trying to make the RXPGTN Mode selections and the Ident selection pass to an online network like VATSIM or PilotEdge try this.

In your FSUIPC6.INI file add a section (if it doesn't exist) and the entry below it shown.

[LuaFiles]

1=RXPGTN750_XPDR_MODE_C

then put the file I messaged to you RXPGTN750_XPDR_MODE_C.LUA into your FSUIPC6 folder. I've copied the file below but be careful about copying and pasting into a text file. Use the file I sent you if possible.

function CheckTransponderState(name, value)
if value == 3 then
ipc.control(1120,1)
end
if value == 2 then
ipc.control(1120,1)
end
if value == 1 then
ipc.control(1119,1)
end
if value == 0 then
ipc.control(1119,1)
end
end
event.Lvar("rxp.transponder.mode", 700, "CheckTransponderState")

 

To enable the IDENT function I don't do that through the RXPGTN, I do it by mapping a button on my logitech yoke to the ident function. I can help you do that in FSUIPC if you provide details on your yoke or stick buttons.

Let me know if this works for you.

Bruce

Edited March 10, 20224 yr by bbuckley

Thank you bruce....

I added the lines to the FSUIPC Ini file as shown:

[LuaFiles]

1=RXPGTN750_XPDR_MODE_C

Also, included the exact file you sent me(Thank you BTW), to the FSUIPC folder.

 

But is not working.    Transponder doesnt change when selecting STBY - ALT - ON through RXP GTN750.

I read something about the LUA file but related to the panel folder of the aircraft(in my case, the FSW LJ35A), but no luck then neither.

 

Can you help me find the culprit?  Sent my FSUIPC INI file via PM....

 

Let's rewind a little bit to make sure we're talking about the same things.

If you need to custom map the standard Prepar3D XPDR system with the GTN XPDR functionality, this is therefore done already: the GTN is fully synchronizing the XPDR with Prepar3D transponder simvars and modes.

-> can you confirm this is working on a simple aircraft (say the default Mooney) as-is (without Vatsim nor PilotEdge in the middle)?

If you want to bind the proprietary Vatsim/Pilotedge XPDR handling (their operating modes) into the standard Prepar3D transponder simvars and modes (the public SDK accessible ones), and if you can do this proprietary binding with the default and standard P3D transponder, then it should work as-is with the GTN because the latter synchronize bidirectionally with P3D?!

Otherwise how would you do without resorting to using a payware middle-ware (FSUIPC)?

Edited March 15, 20224 yr by RXP

@RXP Jean-Luc, you are much more capable of helping than I am, so @Raphael_Chacon please respond to Jean-Luc. However, let me describe the two issues I wanted to solve:

1. In the P3D Carenado Phenom 100 I replaced the MFD with the RXP GTN. I found that the PFD display of the modes would not change when I used the GTN to set them. Carenado used LVARS unique to the Phenom to display the mode. I implemented an xml "gauge" I called "Synch_XPDR_MODE.xml" to sync the GTN and PFD displays. See the code below.

Spoiler

<Gauge Name="Synch_XPDR_MODE" Version="1.0">   
<Element> 
    <Select> 
        <Value>!lua
                gtn_mode   = varget("L:rxp.transponder.mode","Number")                    
                if gtn_mode == 3 then
                    varset("L:G1000_XPDR_ON_ALT_Visible",2)
                end
                if gtn_mode == 2 then
                    varset("L:G1000_XPDR_ON_ALT_Visible",2)
                end
                if gtn_mode == 1 then
                    varset("L:G1000_XPDR_ON_ALT_Visible",1)
                end
                if gtn_mode == 0 then
                    varset("L:G1000_XPDR_ON_ALT_Visible",0)
                end
        </Value> 
    </Select> 
</Element>
</Gauge>

2. I can only speak to PilotEdge (awesome service) as a longtime user (not speaking for PE in any way). When I fly the Phenom 100 on PE I did not want to have to go to their client interface to change the mode. The only thing they care about is the code (which is passed successfully by the GTN) and whether Mode C (ALT) is ON or OFF. To implement the Mode C function in the VC I implemented the lua script RXPGTN750_XPDR_MODE_C.lua below.

Spoiler

function CheckTransponderState(name, value)
if value == 3 then
ipc.control(1120,1)
end
if value == 2 then
ipc.control(1120,1)
end
if value == 1 then
ipc.control(1119,1)
end
if value == 0 then
ipc.control(1119,1)
end
end
event.Lvar("rxp.transponder.mode", 700, "CheckTransponderState")

I'm not sure which (if either) of these issues @Raphael_Chacon is trying to solve. My "Synch_XPDR_MODE.xml" is unique to the Carenado Phenom so I can't help with the FSW LJ35A LVARS.

Thanks,

Bruce

BTW this was all done a long time ago so I'm unable to give credit here to others who provided any code I may have used or modified.

Edited March 15, 20224 yr by bbuckley

5 hours ago, RXP said:

If you need to custom map the standard Prepar3D XPDR system with the GTN XPDR functionality, this is therefore done already: the GTN is fully synchronizing the XPDR with Prepar3D transponder simvars and modes.

That is exactly what i need.  Using other payware brands like PMDG, or even default aircrafts, when i switch TX to ON/ALT internally inside the 3d cabin,  the IVAO application automatically switch it on for the network i use.  I bet thats what you mean about the link betwen P3D and GTN, should be operative already, but not working for me.

5 hours ago, RXP said:

-> can you confirm this is working on a simple aircraft (say the default Mooney) as-is (without Vatsim nor PilotEdge in the middle)?    I use IVAO, but Understooh....

All right, i will try that and see what happen.

Bruce, thank you for your info as well.   Let me try this advices and ill be back....

Happy flying! 😎