“Radio operator” appears in drone school menus, in the requirements of some job offers and in plenty of conversations between pilots, almost always as if it were one more qualification every professional has to get. It is not. Since Royal Decree 517/2024, Spanish law states quite precisely when a drone pilot needs it, what has to be proven and who issues it.
There has also been a change worth keeping in mind: the radio operator certificates that used to be obtained at schools are no longer valid. This article explains when the qualification is mandatory in Spain, what the rule requires, how to get it step by step and what to do if you held the old one.
Radio is learned by speaking
The Professional Drone Pilot Course includes 20 hours of training in communications to work as a radio operator, within its flight certificates module.
When it is mandatory and when it is not
The rule is in article 34 of Royal Decree 517/2024, the regulation that governs civil drone use in Spain. It does not list places or types of operation: the test is functional. The pilot needs the radio operator qualification when the operation requires using the air band (the aeronautical mobile service) to establish aeronautical communications.
Put another way: if your operation means talking by radio to an air traffic services unit, you need it. AESA spells it out on its training page: it is required when air traffic service providers or aerodrome and heliport managers demand that communication system. That is what happens in operations close to aerodromes or in airspace with traffic control where coordination is done by radio.
The practical consequence is that many pilots do not need it. Someone flying in the open category, away from aerodromes and without radio coordination, does not use the air band and has nothing of this to prove. Someone working around airports, or for clients with facilities near an aerodrome, is the most likely to need it.
One nuance that avoids misunderstandings: being a radio operator does not give you permission to fly anywhere. The radio is the tool used to coordinate; permission to be in that zone is handled separately.
What the rule requires: two certificates and the language
The same article 34 asks three things of a pilot who has to use the air band.
A theoretical radio operator training certificate, issued by AESA. It is valid indefinitely.
A practical radio operator training certificate, issued by an examiner authorised by AESA after the pilot demonstrates their competence in aeronautical communications. This one expires: it is valid for two years from issue.
Adequate knowledge of the language or languages used in the communications. The rule considers it proven with a valid language proficiency certificate of at least operational level (level 4) under Order FOM/1146/2019. Section 2 of the article adds that pilots may use Spanish with air traffic services units, unless the provider’s coordination procedures say otherwise.
The article leaves a door open: AESA may recognise other ways of proving the qualification and the language through acceptable means of compliance (AMC). Its training page already lists two: holding an active manned aviation pilot licence with the rating endorsed, or an active air traffic controller licence, covers that part.
How to get it, step by step
1. The theory certificate, with AESA
AESA itself teaches and examines it and, according to its page, it is free of charge. The process:
- Registration is only possible through the Virtual Office of AESA’s electronic headquarters.
- The training is online. From the moment the enrolment notice arrives, you have 30 working days to complete the course and the exam.
- The exam, also online, has 40 questions in 40 minutes and the pass mark is 75 %.
Thirty working days are plenty for the syllabus, but not for starting it late. Enrol when your diary is clear, not before.
2. The practical certificate, before an examiner
With the theory passed, you still have to show you can actually communicate, before an examiner authorised by AESA. This is where practice shows. Phraseology, message order, reading back instructions or spelling without hesitation with the aeronautical alphabet are not learned by reading; they are learned by speaking.
And since this certificate lasts two years, note the date. An expired practical certificate leaves the pilot without the qualification even if the theory certificate is still valid.
3. The language
If you will communicate in Spanish, section 2 of article 34 allows it as a general rule. If your work takes you where coordination is done in English, you need to prove that language at the level the rule requires.
Radio, regulations and flight practice in one route
Radio on its own does not open jobs. Together with AESA regulations and flight practice at our aerodrome, it does: it is the base for entering the specific category.
If you held the old radio operator certificate
Before Royal Decree 517/2024, the radio operator certificate for drone pilots was obtained at approved training organisations (ATOs) or ultralight schools. AESA established that those certificates remained valid for two years from the decree’s entry into force, that is, until 25 June 2026.
That date has passed. If your certificate comes from that system and your work requires using the air band, what counts now are the two certificates in article 34: AESA’s theory certificate and the practical one before an examiner. What you learned is not lost, but the paper is.
Where the radio operator fits in your training
Radio operator is not a profession: it is a qualification that opens some jobs and without which others close. That is why it makes more sense inside a training route than on its own.
At UMILES University we cover it within the Professional Drone Pilot Course. Its first module, on flight certificates, brings together preparation for the European certificates and for radio operator, and includes 20 hours of training in communications to work as a radio operator, alongside AESA regulations, operational safety and flight practice at our aerodrome in Madrid.
The logic is the usual one in this sector: whoever is going to work near aerodromes or in coordinated operations usually needs the specific category too. If that is your case, the STS certificate course covers both European scenarios. If you are not sure yet which category you will work in, start with which drone licence category you need, and if what you are unsure about is the specialisation, which drone course you need for the job you want compares them all.
And if you want to see how all these legal pieces fit together in a specific trade, drone inspection work explains what each job requires, from the specific category to the requirements set by the client itself.
If you will work near aerodromes, we will tell you what you need
- ✓Training approved by AESA
- ✓Real flight practice, not just theory
- ✓In-person classes in Madrid
- ✓We tell you which route fits you, no strings attached
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