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VirtualFlight.Online Transmitter

VirtualFlight.Online Transmitter displays multiplayer aircraft from Microsoft Flight Simulator live in LittleNavMap and on a live map in the VirtualFlight.Online website to assist those taking part in group flights and to simulate air traffic control for groups wishing to provice ATC services.

Informazioni su

What is "Virtual Flight Online Transmitter" ?

It is a small Windows application that transmits your position in Microsoft Flight Simulator to an online database. Anybody running Transmitter can then be plotted live in LittleNavMap, and on a map at


If you and your friends want to see each other on mapping software such as LittleNavMap to run your own air traffic control sessions for group flights, you will no doubt have discovered that Microsoft Flight Simulator only communicates AI aircraft to external mapping applications such as LittleNavMap - not users. The VirtualFlight.Online Transmitter application addresses that.

How It Works

The desktop application connects to a running copy of Microsoft Flight Simulator via the SimConnect interface, and reads your aircraft's type, latitude, longitude, altitude, and airspeed. It combines the data with your keyed callsign and name, and sends it to a server on the internet.

The server then provides access to data that has updated in the last 5 minutes in "whazzup" format - a data format commonly used with the likes of VATSIM and IVAO - and crucially LittleNavMap. The URL of the server can be used to configure LittleNavMap to show you and your friends aircraft on the map.

Running the Program

  • Launch Microsoft Flight Simulator.
  • Run "VirtualFlight.Online Transmitter".
  • Fill out the text boxes for your callsign, aircraft type, name, group name, and server URL.
  • Click Connect

After clicking connect, the application will broadcast your location within the simulator to the internet once a second.

Configuring LittleNavMap

If you would like to see everybody broadcasting their position with Virtual Flight Online Transmitter, follow these steps in LittleNavMap:

  • Click on the Tools menu
  • Click on Options
  • Select the Online Flying section within the Options panel
  • Choose the radio button for "Custom" within the Online Flying section
  • Fill the URL into the URL field (and make sure you have no spaces in the URL)
  • Set the update rate to something sensible (e.g. 5 seconds)
  • Make sure IVAO is chosen in the format drop-down
  • Click Apply, and OK 

Who is online?

You can find out who is online at any time by visiting the following URL:

Help Support Transmitter

If you are able to assist with the operating costs and continued development of Transmitter, please consider joining the patreon - for the price of a cup of coffee each month, you'll be helping the entire community.

Sim Update 11 0 0
Rilascio iniziale
August 11, 2021
Ultimo aggiornamento
2 month(s) ago —


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1.48 MB



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© Jonathan Beckett - All rights reserved. È vietato qualsiasi ricaricamento o ridistribuzione di questo file senza il previo consenso scritto dell'autore. Questo Flight Simulator 2020 Mod è stato creato da Jonathan Beckett and shared in Utilities » Applications per Microsoft Flight Simulator.

30 Commenti

Hi, I have been using online transmitter for sometime now and wonder if there is a problem since SU11 as I have had several times when LNM loses simconnect connection. And today after it happend again on the second leg of a flight. I shut down the sim and restarted the flight I had been doing without using online transmitter and so far there has been no problem with LNM. Has anyone else reported the same experiance?

Thats great! Thank you very much!

Now I need a Mod to bring LNM to the Toolbar, because its easier for VR.

Hi, I cannot start installer of the new update (2000-09-23). Windows tell me that i have to be logged as admin...

EDIT : problem fixed by a new download version.

Hello Guys, I don't see other player but a see my plane double!!!! one plane in red and one plane in yellow, but it's still my plane ...does anyone has an explanation to it ??

Hey, Thanks for ur Work.

It worked with littlenavmap, but maybe there is a way to get it work with Aivlasoft too?




11 month(s) ago / Ringraziato da jonbeckett


Good soft, just 2 questions

Why transponder is always 1234 ?

Is your soft is now open source ?




1 year(s) ago / Ringraziato da jonbeckett

Thank You so much for this littlew piece of software!

Our Group used JoinFS, because JoinFS showed up the Partners as AI, so that they are visible in LNM. But since update 6 JoinFS has problems to show the orientation of the other Airplanes. It look als if they fly sideways - in MSFS and in LNM - this of course looks very strange.

With Your transmitter we can use the native Multiplayer-System if the MSFS without missing an option to control the gang...



1 year(s) ago / Ringraziato da jonbeckett

Nice, LNM needed something like this!

If as been able to do this since alpha, there has to be a way for them to get it to work natively. In the meantime, thanks!



1 year(s) ago / Ringraziato da jonbeckett

Nice app and feature that MS doesn't bother to implement. Enjoy the group flight more. Hopefully setting LNM to poll every 2 second will not overload the server.

Hey, great little app!

I'm currently building my own webapp in PHP to help with flight planning, sharing and recording and your program looks really interesting! Is it possible to send the data stream to my webapp instead of your own php processor?

I'm assuming it's sending $_POST data to the receiving PHP file?

What a great idea, especially the possibility to see groupmembers.

I do know one other addon that should be able to show groupmembers only - FSBlackbox- , but it does not work at my pc.

Would it be possible to devellop your tool in a way it shows group members at the VFRMap in FS2020?



1 year(s) ago / Ringraziato da jonbeckett

set up as described in the above instructions... boom.. on the map... using the default settings it seems to work as described on the box. look forward to see if anyone ealse shows up as i was the only one flying using the transponder... great job.. look forward to improvements etc

Nice idea, but using standard POST php functions are just begging for a expoit hack to bring down the server, possibly look at using node.js over websockets for a realtime tidy json hook would be cleaner and not cause breaks in code



1 year(s) ago / Ringraziato da jonbeckett

What a great idea! Seems to me, Microsoft should make this a feature of MSFS.

Wow, a very interessting app ! Thanks.

Is it possible to create our own server?

If yes, how ?

does this only work with little navmap ?

Questi articoli sono attualmente in lista e saranno elaborati presto!
Suggerimenti, bug e idee per il futuro.

  • Version September 27, 2022

    A minor update to fix a display issue, where Transmitter was refreshing the interface each time it transmitted data to the server. This is now resolved. Also added a link to the VirtualFlight.Online Codex in the menus.

    If you use Transmitter a lot, please consider supporting the project through Patreon -

  • Version September 24, 2022

    Fixes a small bug in Transmitter where the connect button didn't reflect state properly.

  • Version September 24, 2022

    Tidies up the connection programming to make it fail more gracefully when the simulator crashes, and introduces a news feed.

  • Version July 21, 2022

    Rebuilt the installer to force it to ask for an install location (it was not doing so if already installed)

  • Version July 17, 2022

    - Fixes a small bug where the server was not remembered
    - Adds new "Auto Connect" functionality (in the file menu) - when enabled, Transmitter both auto-connects at launch, and tries to re-connect automatically if the connection to the simulator is lost.

  • Version June 29, 2022

    Now lets you tell others what MSFS server you are on! (visible in the "Who's Online?" page -

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