To configure FIXAntenna properties with an environment variables you need the following:

1. Define environment variable in the system:

2. Apply environment variable. FIXAntenna can utilize environment variables in the engine.properties file, using the syntax:

   ${EnvVarName} - this construction will be substituted with an actual value of EnvVarName

   Example: 

   # The license file path.

   LicenseFile= ${PATH_TO_LICENSE}