Should already have it – if not – it should be on your to do list for the immediate future.
Get your tech license, get your radio and gear – start learning about it- start using it.
https://ncrenegade.com/editorial/get-your-tech-license-the-easy-way/
Once you have your license and gear…
Go here for a metric fuckton of great info – it’s there – it’s free- make use of it.
Brushbeater runs excellent classes as well – real world experience well worth the investment.