How much does it cost to get a GROL license?

The FCC application fee for a GROL license is $50, paid through the FCC CORES system when you file FCC Form 605. Additionally, you will pay an exam session fee to the Commercial Operator License Examination Manager (COLEM) administering your test, typically ranging from $25 to $100 depending on the testing organization.

What is the difference between a GROL and a MROP license?

A GROL (General Radiotelephone Operator License) covers Elements 1 and 3, authoring operation and maintenance of most land and maritime radio systems. A MROP (Marine Radio Operator Permit) only requires Element 1 and limits you to operating ship radar and certain maritime stations. The GROL provides broader authority for adjusting and maintaining radio transmitters across multiple service types.

How many questions are on the GROL exam?

The GROL exam consists of two elements. Element 1 (Marine Radio Operator Permit) contains 24 multiple-choice questions with a passing score of 75%, requiring at least 18 correct answers. Element 3 (General Radiotelephone) contains 100 multiple-choice questions, also requiring a 75% passing score, meaning you must answer at least 75 questions correctly.

Can I take the GROL exam online?

No, the GROL exam must be taken in person at an FCC-authorized Commercial Operator License Examination Manager (COLEM) testing site. Organizations such as iNARTE, ETA International, and the National Radio Examiners offer testing sessions at locations across the United States. You must schedule your exam through one of these approved COLEMs and bring valid government-issued photo identification.

What topics should I study for the Element 3 exam?

Element 3 covers operating procedures, radio wave propagation, radio practice, electrical principles, circuit components, practical circuits, signals and emissions, and antennas and feedlines. You should also study FCC rules and regulations governing commercial radio services, as well as safety practices for working with high-voltage transmitting equipment. Questions are drawn from a publicly available FCC question pool.

Do I need a GROL to work on aviation radio equipment?

Yes, a GROL is required to adjust, maintain, or internally repair most aviation radio transmitters and certain radar systems. The FCC mandates that technicians servicing avionics radio equipment at repair stations hold a valid GROL. Many aviation employers list the GROL as a job requirement, and the FAA expects radio work at certified repair stations to be performed by FCC-licensed operators.

Can I add a radar endorsement to my GROL?

Yes, you can add a Ship Radar Endorsement by passing Element 8, which covers radar operating principles, safety techniques, and maintenance procedures for marine radar systems. You can also add a GMDSS Radio Maintainer endorsement by passing Element 9. These endorsements expand the scope of equipment you are authorized to install and maintain under your existing GROL license.

What happens if my GROL license expires?

GROL licenses are issued for a lifetime and do not expire under current FCC rules. Once granted, your General Radiotelephone Operator License remains valid indefinitely without renewal fees or continuing education requirements. However, if your license was issued before 1984, it may have had an expiration date, and you should verify your license status through the FCC Universal Licensing System (ULS).

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Pass your Pass the GROL (General Radiotelephone exam on the first attempt. Practice questions with detailed answer explanations, hints, and instant scoring.

GROL - General Radiotelephone Operator License By David ChenMay 12, 202658 min read

Pass the GROL (General Radiotelephone Operator License) Test

⏱️UNLTime Limit

📝100Total Questions

✅75%Pass Rate

💵$35+Exam Fee

Unlike many other professional certifications, the FCC GROL license is issued for your lifetime. Once you pass your FCC GROL exams (Elements 1 and 3), you never need to renew it, making it a valuable one-time investment for your long-term career in avionics and maritime communications. Radio and communications professionals may also benefit from our AWS Cloud Practitioner practice test.

Fcc Grol - General Radiotelephone Operator License study guide

GROL Practice Test Questions

Prepare for the GROL - General Radiotelephone Operator License exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.

GROL Basic Radio Law and Operating

GROL Exam Questions covering Basic Radio Law and Operating. Master GROL Test concepts for certification prep.

GROL Filters and Frequency Control

Free GROL Practice Test featuring Filters and Frequency Control. Improve your GROL Exam score with mock test prep.

GROL General Radiotelephone

GROL Mock Exam on General Radiotelephone. GROL Study Guide questions to pass on your first try.

GROL - General Radiotelephone Operator Lic...

GROL Test Prep for - General Radiotelephone Operator License Amplifier and Oscillator Circuits. Practice GROL Quiz questions and boost your score.

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GROL Questions and Answers on - General Radiotelephone Operator License Antennas and Transmission Lines. Free GROL practice for exam readiness.

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GROL Mock Test covering - General Radiotelephone Operator License Digital Logic and Microcomputers. Online GROL Test practice with instant feedback.

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Free GROL Quiz on - General Radiotelephone Operator License Electrical Principles and Units. GROL Exam prep questions with detailed explanations.

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GROL Practice Questions for - General Radiotelephone Operator License Modulation and Signal Types. Build confidence for your GROL certification exam.

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GROL Exam Questions covering - General Radiotelephone Operator License Receivers and Transmitters. Master GROL Test concepts for certification prep.

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Free GROL Practice Test featuring - General Radiotelephone Operator License Semiconductor and Tube Components. Improve your GROL Exam score with mock test prep.

GROL Test Equipment and Measurements

GROL Mock Exam on Test Equipment and Measurements. GROL Study Guide questions to pass on your first try.

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GROL Exam Flashcards

Quick review for key radio and electronics concepts

📻What is the emission designator for FM voice?

The emission designator for Frequency Modulated (FM) voice communication is typically F3E.

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⚡What is Ohm's Law formula?

Ohm's Law is expressed as V = I × R, where V is voltage, I is current, and R is resistance.

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📡What defines the VHF frequency range?

Very High Frequency (VHF) ranges from 30 MHz to 300 MHz, commonly used for aviation and marine comms.

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🔋What is the purpose of a fuse?

A fuse protects a circuit from excessive current by melting and breaking the connection when overloaded.

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⚖️Who administers GROL exams?

FCC-designated Commercial Operator License Examination (COLE) managers administer the tests.

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🔊What is SSB modulation?

Single Sideband (SSB) modulation is a form of AM that uses less bandwidth and power by suppressing one sideband and carrier.

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GROL EXAM QUESTIONS QUIZ

GROL License Study Guide

Use this interactive GROL study guide to understand the essentials of the exam. Navigate through the tabs to find answers about the format, registration, scoring, and preparation tips.

What is the GROL license?	The GROL license (General Radiotelephone Operator License) is an FCC credential required to maintain and repair certain aviation and marine radio equipment.
Who needs a GROL certification?	Avionics technicians, marine radio operators, and professionals working with international fixed public radio services need a GROL certification.
Do I need a degree for the GROL?	No, you do not need a college degree to obtain an FCC GROL license. You only need to pass the required written exams.
Is the GROL license valid for life?	Yes, once issued, the FCC GROL is valid for the holder's lifetime and does not require renewal.

What is the GROL license?

The GROL license (General Radiotelephone Operator License) is an FCC credential required to maintain and repair certain aviation and marine radio equipment.

Who needs a GROL certification?

Avionics technicians, marine radio operators, and professionals working with international fixed public radio services need a GROL certification.

Do I need a degree for the GROL?

No, you do not need a college degree to obtain an FCC GROL license. You only need to pass the required written exams.

Is the GROL license valid for life?

Yes, once issued, the FCC GROL is valid for the holder's lifetime and does not require renewal.

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GROL Score Calculator

Total Scored Questions

150

How many questions did you answer correctly?

0105150

105 out of 150 correct

70%

Required to Pass: ~70% (Estimated)

Your Score: 105 correct✓PASS

How to Get Your GROL License

📚

1-2Study Use GROL study guides

📝

3Register Find testing center

✍️

4Exam Pass Elements 1 & 3

📜

5License Receive FCC GROL

Obtain FRN - Register for an FCC Registration Number (FRN) on the FCC website.
Study for Exams - Use a GROL license study guide to prepare for Element 1 and Element 3.
Find Test Center - Locate a Commercial Operator License Examination (COLE) manager near you.
Schedule Exam - Book your appointment for the GROL test and pay the exam fee.
Take the Test - Bring your ID and calculator. Pass both elements with 75% or higher.
File Application - Your COLE manager typically files FCC Form 605 on your behalf.
Receive License - Your official GROL radio license will be issued electronically by the FCC.

What Is the GROL and Why It Matters for Radio Professionals

The GROL, or General Radiotelephone Operator License, is issued by the FCC and authorizes holders to adjust, maintain, and repair radio transmitting equipment at FCC-licensed stations. It combines two examination elements: Element 1 (Marine Radio Operator Permit) and Element 3 (General Radiotelephone), though many candidates pursue Element 3 directly if they already hold Element 1. The GROL is required for technicians who service land mobile radio systems, aviation radio equipment, and certain maritime electronics.

Who Needs a GROL License

Any technician who makes internal adjustments to FCC-licensed transmitters operating on frequencies where a licensed operator is required must hold a GROL. This includes avionics repair technicians, two-way radio shop technicians, and engineers maintaining broadcast transmitter equipment at commercial radio and television stations.

Since the FCC GROL license does not expire and requires no renewal fees, your initial investment of ~$100 provides lifetime career benefits.

Grol Practice Test 1 - General Radiotelephone Operator License study guide

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GROL Test Day Checklist

✓Government-issued Photo ID
✓FCC Registration Number (FRN)
✓Exam Fee Payment (Cash/Check)
✓Non-programmable Calculator
✓Pencils and Erasers
✓Proof of passing Element 1 (if applicable)
✓Printed Exam Appointment Confirmation
✓Positive Attitude!

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GROL License Renewal

📅

Validity

Lifetime

💵

Renewal Fee

📚

CE Units

None

Once you receive your FCC GROL license, it never expires. You do not need to complete continuing education units or pay renewal fees.

GROL: Pros and Cons

✅Pros

+fcc grol license — gROL exam preparation strengthens your knowledge across all domains
+Passing the exam proves competency to employers and clients
+Study materials and practice tests are widely available
+Exam-based credentials are portable across states and employers
+Clear exam objectives help focus your study plan effectively

❌Cons

−Exam anxiety can affect performance — practice tests help reduce it
−Registration fees are non-refundable if you miss your test date
−Limited retake opportunities may apply with waiting periods
−Exam content updates periodically — use current study materials
−Testing center availability may require advance scheduling

GROL Questions and Answers

GROL Study Guide: Complete Path to FCC Certification

FCC GROL License 2026 — General Radiotelephone Operator Exam

GROL General Radiotelephone Operator License Practice Test P

About the Author

David ChenMS, CISSP, CEH, AWS-SAA, Azure Expert

Senior Cloud Architect & Cybersecurity Certification Trainer

Stanford University

David Chen holds a Master of Science in Computer Science from Stanford University and has earned over 25 professional certifications across AWS, Microsoft Azure, Google Cloud, cybersecurity, and enterprise architecture domains. He works as a solutions architect and now focuses on helping IT professionals pass cloud, security, and technical certification exams.