It's a requirement when flying paramotors in South Africa to have an air band radio and a restricted radio license to operate it.
Prior to the Icarus Trophy Recce, our two test pilots did the course and tests. The whole thing took a little over two hours.
To get the licence you need to attend a two hour course which consists of going over 24 pages of fairly standard but relevant stuff. It does include some very specific South African PPG airspace and frequency peculiarities. Then you complete a short true/false questionnaire, followed by a multi-choice and short answer test. Nothing too taxing.
Finally there is a practical skills test. Again this is not particularly taxing - things like spelling your name out loud in the phonetic alphabet and making some really simple radio calls.
For Icarus Trophy pilots without a radio licence we have arranged to do this at the start line for a small fee. Don't forget this is then a global certificate. Pretty handy.