AMD Exam Domains 2026: Complete Guide to All 3 Content Areas

AMD Exam Domain Overview

The Certified AM Directional Specialist (AMD) credential, administered by the Society of Broadcast Engineers through its National Certification Committee and approved proctors, is organized around three content domains published in SBE's official CertPreview description. These aren't loose "topic areas" - they represent the entire technical scope you'll be tested on, from regulatory compliance to hands-on antenna work. Everything on the 51-question exam traces back to one of these three domains.

Unlike broad engineering certifications that spread across a dozen subject areas, AMD is deliberately narrow. It exists to verify that a working broadcast engineer can safely and correctly operate, maintain and troubleshoot AM directional antenna arrays under FCC rules. If you're building a study plan, start by treating each domain as its own mini-syllabus rather than skimming a general "AM radio" review. Our AMD Study Guide 2026 walks through pacing this preparation week by week, but this article focuses specifically on what each domain actually contains.

Domain 1: FCC Rules Concerning Directional Operation

Candidates sometimes underestimate this domain because they assume "rules questions" are easy memorization. In practice, the multiple-choice section is open book - you're permitted internet access, notes, standard reference texts, tables and calculators - so the exam isn't testing whether you memorized a rule number. It's testing whether you can locate, interpret and correctly apply the right regulatory provision quickly, under a shared three-hour clock alongside the other two domains and the essay. That's a different skill than rote recall, and it's one reason people search for guidance on how hard the AMD exam actually is before committing study time.

Domain 2: Test Equipment and Safety Procedures

This is the domain where hands-on field experience pays off the most, because the questions assume familiarity with equipment behavior in real conditions - not just textbook definitions. If your day-to-day work hasn't included much time at the antenna monitor or common-point sampling system, this is the domain to prioritize with practice questions and, if budget allows, SBE's optional CertPreview.

Domain 3: Operation, Maintenance and Repair of the Directional Antenna System

Because this domain covers so much ground, SBE offers two optional preparatory courses worth knowing about: Introduction to AM Antenna Systems and Introduction to Matching Networks and Phasing. Each is priced at US$90 for members and US$135 for nonmembers, and each maps closely to the phase/component subject matter tested here. They are optional, not required, but they're a direct way to shore up gaps if your field experience skews toward operations rather than design or repair.

Question Format and Scoring Mechanics

All three domains are tested through a single exam instrument: 50 multiple-choice questions plus one essay, 51 questions total, administered under a 3-hour time limit. The multiple-choice section is open book, meaning you may use the internet, personal notes, standard reference texts, tables and calculators - but arranging your own internet access is your responsibility, not the proctor's. The essay portion, by contrast, is closed book.

Passing requires an 84% combined score across both the multiple-choice and essay portions. There is no domain-by-domain pass/fail breakdown reported - results come back as a single pass or fail outcome. That matters for how you study: a weak Domain 2 score can be offset by strength in Domain 1 and Domain 3, since it's the combined total that determines the outcome, not a minimum in each area. For a closer breakdown of exactly what that 84% threshold means in practice, see AMD Passing Score 2026: Exactly What You Need to Pass.

SBE reviews the AMD question bank at least three times per year, so questions are refreshed on a regular cycle rather than left static for long stretches. This is a reason to avoid relying on outdated brain-dump material from prior test-takers and instead study the actual domain content and official reference texts. Our AMD Cheat Sheet 2026 keeps the must-know facts from all three domains in one condensed reference for last-week review.

Eligibility, Registration and Fees

Before you can register for AMD, you must already hold a qualifying SBE Broadcast Engineer, Senior Broadcast Engineer, Professional Broadcast Engineer or Broadcast Networking Engineer certification. AMD is a specialist add-on to one of these host credentials, not a standalone entry-level exam - a distinction covered in more detail in our AMD Requirements 2026 guide.

The exam application fee is US$78 for SBE members and US$183 for nonmembers. If you don't pass on the first attempt, one additional attempt is available at the next scheduled testing period for US$46; beyond that, you'll need to submit a new certification application. For a full accounting of every fee involved - application, optional prep courses, retakes and renewal - see AMD Certification Cost 2026: Complete Pricing Breakdown.

Once earned, AMD follows a five-year renewal cycle alongside your host certification. Specialist renewal doesn't carry its own separate credit requirement - it simply accompanies host renewal with an additional US$36 specialist fee. Host credentials renew either by professional credits (20 at engineer/networking-engineer level, 25 at senior level, or 30 at professional level, drawn from at least four activity categories) or by re-examination.

Who Hires for This Skill Set

AMD-holders typically work at AM stations and broadcast engineering firms that operate or service directional antenna arrays - a smaller, more specialized slice of the broadcast engineering field than general RF maintenance work. Because the credential requires an existing engineer-level SBE certification, employers reading an AMD line on a resume know the candidate already cleared a baseline engineering bar before adding directional-array expertise on top of it. If you're weighing whether the specialist designation is worth pursuing given your career goals, our Is the AMD Certification Worth It? analysis and AMD Jobs overview both dig into where this credential tends to matter most on the hiring side.

Mapping a Study Plan to the Domains

A generic weekly study template isn't useful here unless it's tied directly to which domain needs the most runway. Because Domain 3 (operation, maintenance and repair of the directional antenna system) is the densest of the three, give it the largest block of dedicated time, and schedule Domain 1's regulatory material early so you have time to revisit it after the technical domains sharpen your context for how the rules apply in practice.

This structure isn't a generic spaced-repetition schedule dropped onto an unrelated exam - it's sequenced specifically to the weight and difficulty of AMD's three named domains. For candidates who want a broader comparison of exactly how the exam's difficulty stacks up against expectations, our AMD Pass Rate 2026 article and the difficulty guide are useful companion reads once you've mapped your own domain gaps. You can also run a full simulated attempt on our practice test platform to see how your timing holds up across all 51 questions before exam day.

Frequently Asked Questions