You might want to pick up a SDR (Software defined radio) listen only. You can planefag with it too.
search Amazon for
Nooelec NESDR Mini USB RTL-SDR & ADS-B Receiver Set about $20 bucks
You can listen to one online here free
http://www.websdr.org/
It will take you a while to get your licence then you can use a handheld like a baofeng after you get your ticket.