- The exam is 50 multiple-choice questions, two points each, in three hours, with a 70% pass line (35 correct).
- Four subject areas: safety, problems (electronic and practical), operating practices, and theory.
- Open book: notes, reference books, calculators, and internet are all permitted during the exam.
- Eligibility requires five years of suitable experience, with up to four years substitutable by education or licenses.
The One-Page Snapshot
The Certified Broadcast Radio Engineer credential is issued by the Society of Broadcast Engineers (SBE). It is a practitioner credential: it signals that you can handle the technical and operational realities of a radio facility, not just recite theory. This cheat sheet condenses the facts you need to hold in your head before you register, study, and sit the exam. If you want the long-form treatment of any item, the linked guides throughout this page go deeper, and you can pressure-test your knowledge on the CBRE practice test site.
Before the details, one clarification that saves confusion: "CBRE" appears as an acronym for several unrelated credentials and organizations. This page is exclusively about the SBE's Certified Broadcast Radio Engineer. If you landed here wondering about the name itself, our explainers on what CBRE stands for and what CBRE certification is cover the basics.
| Item | Must-Know Fact |
|---|---|
| Certifying body | Society of Broadcast Engineers, Inc. (SBE) |
| Questions | 50 multiple choice, two points each |
| Time limit | Three hours |
| Passing requirement | 70%, which works out to 35 correct answers |
| Result reporting | Pass/fail only |
| Format | Open book, no essay |
| Proctoring | SBE-approved in-person proctors |
| Validity | Five years |
Exam Format at a Glance
The structure is deliberately simple. You face 50 multiple-choice questions, each worth two points, so the full exam is worth 100 points. There is no essay component. You have three hours, which averages out to roughly three and a half minutes per question. That sounds generous, and for recall-style questions it is. It is much less generous for calculation-heavy problems where you need to find the right formula in your reference material, work the math, and verify units.
Scoring is straightforward: 70% to pass equals 35 correct answers. You can miss 15 questions and still pass. Results are reported as pass or fail only, so you will not receive a diagnostic breakdown by subject. That matters for retake planning: if you do not pass, you will not know which subject area cost you the most, so honest self-assessment before the exam is worth more than usual. Our deeper explainer on the CBRE passing score walks through the arithmetic and what it means for risk management.
Fees, Discounts, and Retests
Pricing depends on your SBE membership status. The initial exam fee tiers are:
- US$88 for SBE members
- US$193 for nonmembers
- US$303 for nonmembers who choose MemberPlus
There are several add-ons and reductions worth knowing. The application offers a US$57 nonmember student reduction, which brings the standard nonmember fee down to US$136, subject to student-status approval. A qualifying retest costs US$46. An optional CertPreview is available for US$45. For a full breakdown including how membership math can change your decision, see our CBRE certification cost guide.
| Fee Item | Amount |
|---|---|
| Initial fee, member | US$88 |
| Initial fee, nonmember | US$193 |
| Initial fee, nonmember MemberPlus | US$303 |
| Nonmember student reduction | US$57 (US$136 from standard fee, subject to approval) |
| Qualifying retest | US$46 |
| Optional CertPreview | US$45 |
Eligibility and Experience Math
This is where many candidates get tripped up, because the credential is experience-gated rather than course-gated. The core requirement is five years of suitable experience. Education and license substitutions can reduce the experience you need to demonstrate by up to four years, but substitutions cannot overlap: you cannot claim the same calendar time twice, once as work and once as schooling.
Your application package includes:
- Documentation of your suitable experience
- Transcripts if you are claiming education credit
- Three references, one of whom must be a work supervisor
Notably, there is no mandatory previous certification and no fixed training-hour requirement stated. You do not need to hold another credential first, and there is no minimum number of classroom hours to log. What the application tests is whether your documented background reasonably qualifies as broadcast-engineering experience. If you are borderline, our CBRE requirements guide works through how to document and substitute strategically.
Key Takeaway
Build your experience timeline as a calendar before you apply. Mark work periods and education periods on the same timeline and confirm nothing is counted twice. Line up your supervisor reference early, since it is the one reference with a mandatory role.
The Four Subject Areas
The current exam covers four subjects: safety, problems (electronic and practical), operating practices, and theory. The published list is undated and does not come with an official weighted blueprint, so treat any percentage breakdown you see elsewhere with suspicion. Broader practice-platform topic lists you may encounter are study aids, not the official specification. For a fuller walkthrough, see our complete guide to the CBRE exam domains.
Domain 1: Safety
Broadcast facilities combine hazards that most workplaces never see together. Expect questions grounded in practical risk recognition rather than abstract regulation recall.
- Electrical hazards around high-voltage transmitter equipment and power distribution
- RF exposure awareness around antennas, transmission lines, and tower sites
- Tower and climbing safety considerations
- Lockout/tagout thinking and safe work practices before touching equipment
- Grounding, bonding, and lightning protection basics
Domain 2: Problems: Electronic and Practical
This is the hands-on troubleshooting and calculation area, and it is where the open-book format helps and hurts in equal measure. You must know which formula applies and how to execute it quickly.
- Ohm's law and power calculations, including decibel math
- Impedance, resonance, and filter behavior
- Transmission line and antenna calculations such as VSWR and reflected power
- Audio level and gain-staging problems
- Diagnosing a fault from symptoms: what failed, and what to check first
Domain 3: Operating Practices
This subject covers how a radio facility is actually run: the procedures, responsibilities, and records that keep a station compliant and on the air.
- Station operation and maintenance practices
- Logging, recordkeeping, and documentation habits
- Regulatory awareness relevant to broadcast operations
- Emergency alerting and on-air continuity concepts
- Maintenance scheduling, spares, and preventive practices
Domain 4: Theory
Theory underpins everything else. Questions here test whether you understand why systems behave as they do, which is what lets you reason through unfamiliar scenarios.
- Modulation fundamentals and broadcast signal characteristics
- Radio wave propagation and antenna principles
- Analog and digital audio concepts
- Core electronics: AC/DC circuits, semiconductors, amplifiers, oscillators
- Transmitter and studio-to-transmitter system concepts
The topic bullets above are illustrative of the kinds of material that fall under each subject, not an official syllabus. Always verify scope against the current SBE materials before you finalize your study plan.
Making the Open-Book Format Work
The exam permits notes, reference books, calculators, and internet access. Candidates supply their own connectivity and must comply with nondisclosure and examination-material return rules, so treat the exam content as confidential and follow the return instructions exactly.
The common mistake is assuming open book means easy. It does not. Open book changes what the exam rewards: instead of rote memory, it rewards retrieval speed and judgment. With 50 questions in three hours, you cannot afford to research every item from scratch. Candidates who struggle are typically those who arrive with a pile of unorganized references and discover mid-exam that they cannot find anything quickly. Our CBRE difficulty guide discusses how this format shifts the challenge.
What to Know Cold Anyway
Even with references available, some knowledge should be instant. If you must look up the basic relationships among voltage, current, resistance, and power, or the meaning of a decibel, you will lose time on dozens of questions. Reserve your lookup time for the unusual: specialized tables, rarely used formulas, and fine regulatory details. Know the core by heart and look up the edges.
Staying Certified: The Five-Year Cycle
Certification is valid for five years. You can renew in one of two ways:
- Earn 20 SBE professional credits spread across at least four categories during the certification period, or
- Retake the exam before your certification expires.
Renewal fees mirror the initial tiers: US$88 for members, US$193 for nonmembers, and US$303 for nonmember MemberPlus. Members who maintain continuous membership during the term receive a 10% member-fee discount. The category requirement is the detail people overlook: 20 credits concentrated in one activity type will not satisfy it, so spread your professional activity across at least four categories rather than discovering the gap late.
Key Takeaway
Start tracking professional-credit activity the day you certify, not in year four. Keep a running log with dates and categories so your renewal paperwork is a matter of assembly rather than archaeology.
Where the Credential Gets Used
The CBRE is a radio-focused broadcast engineering credential, so it is most relevant in environments where radio facilities are built, maintained, and kept on the air. That includes commercial radio groups and individual stations, public and noncommercial broadcasters, and contract engineering firms that service multiple stations. It also has value for engineers who handle transmitter sites, studio facilities, and the links between them.
How much the credential moves the needle depends on the employer and your role. For some positions it is a clear differentiator or a stated preference; for others it is simply evidence of professionalism alongside demonstrated experience. We avoid quoting earnings numbers here because they vary widely by market, employer type, and responsibilities. For a qualitative look at the economics, see our CBRE salary guide, and for the bigger question of return on your investment, read whether the CBRE is worth it. If you are scanning the market, our CBRE jobs overview outlines the roles where this credential comes up.
A Four-Week Domain Sequence
You do not need a generic study template; you need an order that fits how these four subjects depend on one another. One sensible sequence, assuming you already have working broadcast experience:
Theory First
- Refresh core electronics, modulation, and propagation, because the other subjects lean on these
- Draft the first version of your formula and conversion quick-reference
Problems: Electronic and Practical
- Work calculation problems with your references open and a timer running
- Refine your quick-reference index based on what you struggled to find
Operating Practices and Safety
- Review procedures, recordkeeping, and regulatory awareness
- Drill safety scenarios, since these reward careful reading over recall
Full-Length Simulation
- Sit a timed 50-question practice set mimicking the three-hour limit
- Review every miss and patch weak areas with practice questions
Theory goes first because Problems questions are applied theory. Safety and Operating Practices come later because they are more scenario-driven and less formula-dependent. Because exam results are pass/fail only, your own practice scoring is the only diagnostic you will get, so take it seriously. For a more complete plan, see our CBRE study guide, and for structured resources see CBRE training options.
Quick-Answer FAQ
You need 35 correct out of 50, which equals the 70% passing requirement. Each question is worth two points, so 35 correct answers gives you 70 of 100 points. See our passing score guide for more detail.
Yes. The exam is open book, and notes, reference books, calculators, and internet access are permitted. You are responsible for your own connectivity, and you must follow the nondisclosure and examination-material return rules.
No. There is no mandatory previous certification and no fixed training-hour requirement stated. The gate is five years of suitable experience, which education and license substitutions can reduce by up to four years without overlapping credit.
The initial fee is US$193 for nonmembers, or US$303 for nonmember MemberPlus. Eligible students may get a US$57 reduction from the standard nonmember fee, resulting in US$136, subject to approval. A qualifying retest is US$46. Full details are in our certification cost breakdown.
Either earn 20 SBE professional credits across at least four categories during the term, or retake the exam before your certification expires. Renewal fees are US$88 for members, US$193 for nonmembers, and US$303 for nonmember MemberPlus, with a 10% member-fee discount for continuous membership during the term.
Keep this sheet handy as a checklist: confirm your eligibility timeline, price out your fee tier, build a fast-retrieval reference set, and sequence your study from theory through simulation. For the full picture of the credential itself, start with what CBRE is and the broader CBRE certification overview.