FCC General Radiotelephone Operator License (GROL) Vocabulary Game
Exam terms with clues and explanations by OpenExamPrep.
About the FCC General Radiotelephone Operator License (GROL) Vocabulary Game
A free word game for the FCC General Radiotelephone Operator License (GROL) exam. Each round shows a clue for one of 20 exam terms across 14 topics. Recall the term, spell it out, then read a short explanation. Rounds pick a random term, so you can keep playing as long as you like.
How to Play
- 1Read the clue and type a term with the right number of letters (3 to 6). Abbreviations count: type the letters only.
- 2Press Check Answer or Enter. Each letter changes color to show how close you are.
- 3You have 6 tries. Stuck? Need a hint? asks the AI tutor for a nudge without giving the term away, and Skip moves to a new term.
- 4After the round, read the explanation, ask the AI to explain it, share your result, or press Next.
- ARight letter, right spot
- AIn the term, wrong spot
- ANot in the term
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Topics in the FCC General Radiotelephone Operator License (GROL) Vocabulary Game
Radio law
Distress communications
Operating procedures
Survival craft
Electrical principles
Circuit components
Digital logic
Receiver circuits
Signals and emissions
Antennas and feed lines
Aviation services
Satellite communications
RF safety
Installation and repair
Sources for these terms (7)
- Commercial Radio Operator License Program · Source checked 2026-11-04
- Obtaining a License (Commercial Radio Operator License Program) · Source checked 2026-11-04
- FCC Commercial Element 1 Question Pool (approved 25 June 2009) · Source checked 2026-11-04
- FCC Commercial Element 3 Question Pool (approved 25 June 2009) · Source checked 2026-11-04
- Space Segment | GPS.gov · Source checked 2026-11-04
- GPS | GPS.gov · Source checked 2026-11-04
- Time and Frequency from A to Z, Q to Ra | NIST · Source checked 2026-11-04
About the GROL Exam
The FCC General Radiotelephone Operator License (GROL) is a lifetime commercial radio license required to adjust, maintain, or internally repair FCC-licensed radiotelephone transmitters in aviation, maritime, and international fixed public radio services. It requires passing Element 1 (Basic Radio Law, 24 questions) and Element 3 (General Radiotelephone, 100 questions).
Exam sponsor: FCC (exams administered by authorized COLEMs). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Questions
124 questions
Time Limit
Not published by FCC; the administering COLEM sets session timing
Passing Score
Element 1: 18 of 24 (75%); Element 3: 75 of 100 (75%)
Exam / Certification Fees
$50-$170 COLEM fee for Elements 1 and 3 + $35 FCC application fee
Exam sponsor websiteFees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Frequently Asked Questions
Is the GROL vocabulary game free?
Yes. The game is free to play with no sign-up. Signing in adds AI explanations for any term.
How does the GROL vocabulary game work?
Each round shows a clue for one of 20 GROL terms. Guess the term in six tries: green means the right letter in the right spot, yellow means the letter is in the term but in another spot, and gray means it is not in the term. After the round, read the explanation and play the next term.
Where do the GROL terms come from?
OpenExamPrep researched each term from the FCC (exams administered by authorized COLEMs) content outline and primary sources, listed under Sources on this page. The game is independent study material, not an official exam resource.
What is the FCC General Radiotelephone Operator License (GROL)?
The GROL is an FCC commercial radio license required to adjust, maintain, or internally repair FCC-licensed radiotelephone transmitters in aviation, maritime, and international fixed public radio services. It requires passing Element 1 (Basic Radio Law, 24 questions) and Element 3 (General Radiotelephone, 100 questions) and is issued for the holder's lifetime.
How many questions are on the GROL exam?
The GROL consists of two exam elements: Element 1 has 24 multiple-choice questions and requires 18 correct; Element 3 has 100 multiple-choice questions and requires 75 correct. FCC does not set a universal session time—each COLEM controls its examination format and timing. The current Element 3 pool is organized into 100 subtopics under 17 lettered topics, 3-A through 3-Q.