PIM Pass Rate 2026: What the Data Shows

The Pass Rate Nobody Has Published

Anyone searching for the pass rate of the Passive Intermodulation Testing (PIM) certification from ETA International will quickly run into a frustrating fact: no official cohort pass rate has been verified. ETA's public pages describing the certification (its communications certification page, the competency requirements document, and the one-page fact sheet) do not publish how many candidates sit the exam or how many pass. If you see a precise percentage quoted on a blog, forum, or training vendor's landing page, it did not come from ETA's published materials.

That absence matters. A pass rate is only meaningful when it comes from the certifying body, covers a defined population of candidates, and specifies a time window. None of those conditions can be satisfied for PIM based on what ETA has made public. So rather than invent a number, this article does something more useful: it lays out what the data does show, which is the structure of the exam, its passing criterion, its delivery rules, and the prerequisites that shape who ends up sitting for it.

If you are weighing whether the credential is a good investment, pair this article with our breakdown of how hard the PIM exam is and our PIM certification cost guide. Together they give a better picture than any single statistic could.

What the 75% Criterion Really Is

The number that gets confused most often is 75%. ETA publishes a 75% passing criterion for the written theory examination. That is the score threshold a candidate must reach. It is not the share of candidates who succeed. A 75% passing score tells you how well you must perform; a pass rate tells you how many people actually clear the bar. Mixing the two up is the single most common error in articles on this topic.

It is also worth resisting the temptation to convert 75% of 50 questions into a neat round count of correct answers. ETA's published materials state the percentage criterion; they do not publish a rounded question count or describe how items are weighted. For a deeper treatment of scoring, see our guide to the PIM passing score.

How the Exam Format Shapes Outcomes

The written portion is compact: 50 questions in two hours. That is roughly two and a half minutes per question on average, which is generous for most items but still demands discipline if you hit a calculation-heavy section. The exam is administered by ETA Certification Administrators as onsite theory testing, using either Trapeza online testing or paper-and-pencil. ETA's general FAQ also describes remotely proctored theory testing through Exam Room.AI, though that general policy does not replace the required hands-on attendance at an ETA-approved school.

Test-Day Rules That Affect Performance

ETA's general testing FAQ sets out conditions that matter more than candidates expect. You need photo ID. Phones are prohibited. Scratch paper and non-programmable or scientific calculators are permitted, and scratch paper must be surrendered at the end. Programmable calculators may require a reset or battery removal. One caution: the FAQ allows the Common Formulas Sheet for certain specifically named other credentials, but nothing in what was reviewed establishes that you may use that sheet on the PIM exam. Do not assume it. Confirm directly with your ETA test administrator before test day, and build your preparation around memorizing key relationships. Our PIM cheat sheet is designed for review, not for the testing room.

The Hands-On Gate Before the Written Test

Here is the structural fact that most strongly shapes any "pass rate" conversation: PIM is not a written-test-only credential. Certification requires an ETA-approved hands-on training course and practical verification, in addition to the theory exam. The charges and duration for that training are separate from the $130 written exam fee, and the two-hour figure refers only to the written test, not to the practical assessment or the course.

This self-selects the candidate pool. People arrive at the written exam having already completed hands-on instruction at an approved school, which tends to mean they are working technicians or are being sponsored by employers. A population filtered that way will behave differently from an open-enrollment exam anyone can attempt cold, which is another reason borrowing pass-rate figures from unrelated certifications is misleading.

On the prerequisite side, PIM follows ETA's stand-alone pathway: you do not need the Associate Certified Electronics Technician (CETa) or another basic electronics certification first. For a full walkthrough, read our PIM requirements guide.

Where Candidates Lose Points: The Seven Domains

ETA's competency document, copyright 2013, organizes the examination scope under seven numbered headings. The document is unweighted, so ETA does not tell you how many questions come from each area. That means you cannot safely skip any domain. The headings are:

Because the blueprint is unweighted, the safest assumption is that all seven headings can appear. Our complete guide to the PIM exam domains goes through each content area in more depth.

Reading Commercial Success Claims Critically

Training providers and prep sellers sometimes advertise "success rates" or "pass guarantees." These are commercial claims, not ETA cohort data. They typically reflect an unknown subset of that provider's own students, measured over an unspecified period, with unstated definitions of success. Even a sincere claim cannot be generalized to all PIM candidates.

Similarly, a seller's assertion that its materials reflect a "2025 update" is not an issuer-verified revision. The competency document ETA currently links is copyright 2013. The public catalogue description of IEC 62037-1:2025 does not establish a new ETA exam blueprint either, and the paid standard itself was not retrieved. When evaluating any resource, ask whether it cites ETA's own documents. If it does not, treat its numbers as unverified.

Retakes, Rollover and Maintenance

The retake policy softens the stakes somewhat. ETA offers one free retake within one year of your first sitting. That means a first-attempt miss costs you time rather than another exam fee, provided you retest within the window. Use the gap deliberately: note which domains felt weakest, and concentrate your review there.

Separately, current Anritsu PIM holders have a $130 rollover pathway. That is a different route and not the selected examination described in this article, so do not assume it applies to you unless you hold that credential.

Keeping the Credential Valid

The certification carries a four-year term with maintenance. Under ETA's Maintenance with Hands-On category, you need six relevant continuing education hours per year (24 over the four years), employer verification, a maintenance form, and $25 per year, totaling $100 over the cycle. On-the-job training is subject to employer verification and ETA evaluation. Do not confuse this with general non-hands-on requirements or exceptions that apply only to other credentials. See our ROI analysis and earnings overview for how these costs fit into the bigger picture, and check testing windows and scheduling before you plan.

A Domain-Ordered Prep Plan

Because the blueprint is unweighted, sequence your study by dependency rather than by guessed weight. Concepts first, then application, then the judgment-heavy and procedural domains. The timeline below ties each stretch to specific PIM headings.

For a fuller approach, our PIM study guide expands this outline, and you can test yourself on realistic questions with the PIM practice test. Training options are covered in our PIM training overview. Finally, a quick note on who uses this credential: the people most likely to need it are those working in RF and wireless infrastructure testing, a topic we explore in our PIM jobs article.

Frequently Asked Questions