This is how i was told to do it by Dallen at Airnav systems!
To link your Airnav radar to RadarBox24.com
What you'll need to do is the following:
1. Create a free account at RadarBox24.com (with a valid email)
2. Log into RB24 with this new account
3. Click on "Options" in the left menu
4. Click on "Account" sub menu
5. Under the "RadarBox Receiver Account" section, enter your Username & Password that is printed on your RadarBox installation CD ROM. This will be something like PGANRBxxxxxx (where the x's are numbers).
6. With the correct username/password entered, clicked "Link RadarBox" button.
Ivor