Any-one who is involved in aircraft maintenance as part of an EASA Part 145 appproved organisation has to receive some level of HF training.
Courses can be customised to meet your requirements, some people need a two day course and some can get by with a 1 day course.
Contact Angel Training (
www.angeltrainingsystems.co.uk) who have also done some of this stuff and will happily tailor a course to suit you.