How to know if it's transmitting or not

[dgaray01]

Hello, i am writing a simple NodeJS code using child_process to run a command in the terminal, is there a way to know if it's transmitting or not? Thankss

[moom0o]

Turn on a radio?

[dgaray01]

Turn on a radio?

Sorry i forgot to specify, i want to know if it’s transmitting but via software, like run a script to know if it’s transmitting. It’s for a website

[creeper6530]

If the binary is running, it's transmitting. It will automatically exit after the WAV file ends.

I don't know much about NodeJS, but I assume there is a way to check if it's running or not.