FCC GROL & GMDSS Prep

Prepare for five FCC commercial radio operator licenses in one app, with the real question pools and every answer explained. This is an independent study aid and is not affiliated with, endorsed by, or an official product of the Federal Communications Commission or any government body.

This is the study aid for the General Radiotelephone Operator License (GROL) and the GMDSS family: the GMDSS Radio Operator's License, the Restricted GMDSS Radio Operator's License, the Ship Radar Endorsement and the GMDSS Radio Maintainer's License. Choose your license and the mock exam draws the exact elements it needs.

WHY THIS APP
Every question is the real, word for word FCC pool question with the pool's answer key, plus a plain-English explanation we write ourselves.
- 2,244 real FCC pool questions from Elements 1, 3, 7, 7R, 8 and 9
- 2,244 flashcards for the rules, formulas and GMDSS procedures
- A license picker that builds the right mock for each license
- Timed mock exams that gate each element at its pass mark
- Weak-area review and a per-topic readiness score

A REALISTIC MOCK EXAM
Each element is passed on its own at about 75 percent. Element 1 needs 18 of 24; Elements 3 and 7 need 75 of 100; Elements 7R, 8 and 9 need 38 of 50. The in-app mocks mirror this and are an unofficial study target.

THE EXAM TOPICS
Radio law and operating practice, electronics and radio theory, GMDSS distress, urgency and safety, DSC and MMSI, Inmarsat, MF/HF and VHF-DSC, maritime safety information, survival craft and SAR, ship radar principles, and GMDSS equipment maintenance.

STUDY YOUR WAY
- Works fully offline, no account, no sign-up
- Progress stays on your device
- Free to try: 15 practice questions and 10 flashcards in each topic, plus 2 mock exams
- One-time purchase, no subscription

SOURCES
Questions are reproduced from the FCC commercial operator license question pools; the explanations are our own.
Commercial Radio Operator License Program (FCC, Federal Communications Commission): https://www.fcc.gov/wireless/bureau-divisions/mobility-division/commercial-radio-operator-license-program
The question pools for each element are listed on the FCC Examinations page.
Examinations (FCC commercial operator license question pools, Elements 1, 3, 7, 7R, 8 and 9): https://www.fcc.gov/wireless/bureau-divisions/mobility-division/commercial-radio-operator-license-program/examinations
The pools are works of the U.S. federal government in the public domain under 17 U.S.C. §105.
17 U.S. Code § 105 (17 U.S.C. §105, U.S. government works in the public domain): https://www.law.cornell.edu/uscode/text/17/105
The licenses and their exam elements are set out in 47 CFR Part 13.
47 CFR Part 13 (Commercial Radio Operators, the FCC rules for these licenses and exam elements): https://www.law.cornell.edu/cfr/text/47/part-13
Scores on the in-app mocks are a study target only and do not predict your result on the FCC exam.