- Why LAS Doesn't Run on a Fixed National Calendar
- The Sequence That Controls Your Timing
- Scheduling Mechanics: What Is and Isn't Published
- How Your Certification Route Changes the Timeline
- Matching Your Exam Date to Domain Readiness
- Preparing for the Hands-On Portion Before Test Day
- Building a Backward-Planned Calendar
- Scheduling Mistakes That Cost Candidates Time
- Frequently Asked Questions
- LAS is Line and Antenna Sweeping, administered by ETA International, and its timeline is driven by course completion rather than a single national exam date.
- An ETA-approved course, a fee and a hands-on exam all come before the knowledge exam.
- Knowledge-exam count, duration and passing score are not verified here, so confirm them with ETA before booking.
- The journeyman CET route additionally requires CETa or General Communications Technician Level 1; the standalone route is distinct.
Why LAS Doesn't Run on a Fixed National Calendar
Many candidates searching for "LAS exam dates 2026" expect a neat table of quarterly testing windows with registration deadlines. For Line and Antenna Sweeping, that is the wrong mental model. The credential is issued through ETA International, and it is structured around training and demonstrated skill, not around a single annual sitting. Because an ETA-approved course and a hands-on exam sit in front of the knowledge exam, your personal timeline is shaped largely by when and where you complete that training.
This article explains how timing actually works for the LAS credential, what you should verify directly with ETA rather than assume, and how to plan your preparation so that whatever date you land on, you arrive ready. If you are still deciding whether this credential fits your career, start with What Is LAS Certification? and then come back to the scheduling questions below.
The Sequence That Controls Your Timing
The order of events matters more than any calendar. For LAS, the verified sequence is: an ETA-approved course, then the associated fee, then a hands-on exam, and only then the knowledge exam. Each step gates the next, which is why "when can I test?" is really a question about when you can finish the earlier steps.
- ETA-approved course. You must complete training through a course that ETA has approved. Course schedules are set by the provider, so the earliest available class often determines your earliest possible exam date.
- Fee. A fee is part of the process. The exact amount is not stated in the verified facts for this article; see LAS Certification Cost 2026: Complete Pricing Breakdown for how to think about total costs and what to confirm with the provider.
- Hands-on exam. This is practical, not a multiple-choice sitting. You will be working with sweep equipment and demonstrating the process.
- Knowledge exam. The written component draws on the eleven knowledge categories in the competency document.
Scheduling Mechanics: What Is and Isn't Published
It helps to separate what is confirmed from what you must verify yourself. Treat anything in the second column as an open question to resolve before you commit money or take time off work.
| Item | Status for LAS |
|---|---|
| Governing body | ETA International (confirmed) |
| Competency document | LAS Competency Requirements, copyright 2022, eleven knowledge categories (confirmed) |
| Prerequisite sequence | ETA-approved course, fee, hands-on exam, then knowledge exam (confirmed) |
| Published domain percentage weights | None published (confirmed) |
| Knowledge-exam question count | Not verified here; confirm with ETA |
| Knowledge-exam duration | Not verified here; confirm with ETA |
| Passing score | Not verified here; confirm with ETA |
| Specific 2026 testing dates | Not listed here; set by course provider and ETA |
Because the passing score and exam format are not verified in this packet, resist the urge to anchor on numbers you find in forums, which may describe a different credential that shares the LAS acronym. Our page on LAS Passing Score 2026: Exactly What You Need to Pass covers how to approach this uncertainty, and LAS Pass Rate 2026: What the Data Shows explains why you should be cautious with any published pass-rate claims.
How Your Certification Route Changes the Timeline
There are two distinct paths, and they add different amounts of lead time before you can even begin the LAS sequence.
The Journeyman CET Route
If LAS is part of a journeyman CET pathway, you additionally need either CETa or General Communications Technician Level 1. That prerequisite credential has to be in hand (or on a firm schedule) before the LAS elements complete the route. In practice, this means your calendar has two tracks: finishing the prerequisite and lining up the LAS course. If you have not yet earned CETa or GCT Level 1, build that into your timeline first, since it can be the true bottleneck.
The Standalone Route
The standalone route is distinct. You are pursuing Line and Antenna Sweeping on its own merits rather than as a step toward journeyman status, so the CETa/GCT Level 1 requirement does not apply to this path. Standalone candidates usually have the shortest path to a first attempt, since their main dependency is course availability. For a full breakdown of who qualifies for which path, read LAS Requirements 2026: Eligibility, Prerequisites & How to Qualify.
| Factor | Journeyman CET Route | Standalone Route |
|---|---|---|
| Extra prerequisite | CETa or General Communications Technician Level 1 | None beyond the LAS sequence itself |
| Main timing bottleneck | Prerequisite credential plus course availability | Course availability |
| Recommended background | RF/LMR/cellular/amateur-radio and antenna/feedline knowledge | Same recommended background |
Matching Your Exam Date to Domain Readiness
Since no percentage weights are published, you cannot rationally skip any of the eleven categories. The better approach is to schedule your knowledge exam only when you can credibly work through every domain. A realistic self-check for each area is below. Use it to judge whether your target date is safe or whether you should push it back.
Foundational Block: Domains 1 through 3
These establish the vocabulary and math you need for everything that follows. If these feel shaky, the later FDR material will not stick.
- Introduction to Antenna System Commissioning: know the purpose and benefits of commissioning, how TDR and FDR compare, and why a stand-alone VNA is not the full-sweep verification method described in the syllabus. Full commissioning sweeps use FDR-capable LMR equipment.
- RF Fundamentals: maximum power transfer, impedance mismatch, reflections, reflection coefficient, and the relationships among VSWR, standing waves and return loss, plus attenuation and insertion loss.
- RF Mathematics: decibel power and voltage ratios, dBm, dBc, dBd and dBi references (including the 2.15 dB dipole/isotropic difference), and adding or subtracting dB.
Physical Plant Block: Domains 4 through 7
This is the hardware knowledge that lets you understand why a trace looks the way it does.
- Coaxial Cable Fundamentals: construction, characteristic impedance (including common 50-ohm systems), skin effect, and velocity factor in FDR measurements and tuned stubs.
- Coaxial Cable Installation: hangers and spacing, grounding kits, weatherproofing, bend-radius requirements and fault signatures, and lightning-protection components as they appear in FDR traces.
- RF Connectors and Connectorization: connector types, cable preparation, torque requirements and errors, and passive intermodulation.
- Antennas and Antenna Theory: polarization, bandwidth, gain, beamwidth, tilt, wavelength calculations, effective radiated power, and FDR bandwidth measurement.
Instrument Block: Domains 8 through 11
This is where the credential earns its name, and where hands-on practice and written knowledge converge.
- FDR Testing: open-short-load calibration, recalibration triggers, phase-stable cables, DTF cable type, data points and resolution, and return loss versus insertion loss.
- FDR Test Interpretation: comparing measured return loss to manufacturer specifications and mapping measured distances to diagrams, components and faults.
- FDR Operation: selecting the frequency range first, markers and limit lines, windowing and smoothing, trace naming, and sweep records and as-built diagrams.
- FDR Troubleshooting: common antenna, cable and connector faults and baseline-versus-current trace comparisons.
For a deeper walk through each area, see LAS Exam Domains 2026: Complete Guide to All 11 Content Areas. If you want to sanity-check your readiness against the "how much is too much" question, How Hard Is the LAS Exam? Complete Difficulty Guide 2026 frames the difficulty honestly.
Preparing for the Hands-On Portion Before Test Day
Because the hands-on exam comes before the knowledge exam, your calendar should reserve real bench or field time, not just reading time. Several syllabus items are procedural and reward repetition with actual equipment:
- Calibration discipline: practice open-short-load calibration until it is automatic, and learn the triggers that require recalibration, such as changing the frequency range or the test cable.
- Setup order: the syllabus emphasizes selecting the frequency range first. Make that a reflex before you touch markers, limit lines or the DTF distance range.
- Record keeping: practice naming, saving and recalling traces, confirming the instrument date and time, and tying sweeps to as-built diagrams.
- Fault reading: sweep as many real cable runs as you can and learn what bend-radius violations, loose connectors, ground-kit issues and lightning protectors look like in the trace.
Key Takeaway
Do not schedule the knowledge exam on the assumption that reading alone will carry you. Treat hands-on repetition with FDR-capable LMR equipment as a fixed block in your calendar, because it feeds directly into both the practical exam and the interpretation questions.
Candidates who already work with LMR, cellular or amateur-radio systems will find the equipment side more intuitive, which is why that background is recommended. If you are coming from outside the field, LAS Training outlines how to build that foundation before the formal course.
Building a Backward-Planned Calendar
Once you know your course date, work backward. The following sample timeline ties each week to specific LAS content rather than generic study habits. Adjust the length to your experience; an experienced LMR tech may compress the early weeks, while a newcomer should extend them.
Commissioning Concepts and RF Core
- Study Domain 1: TDR versus FDR, and why a stand-alone VNA alone is not the full-sweep method
- Begin Domain 2: reflection coefficient, VSWR and return loss relationships
Decibels and Cable Behavior
- Drill Domain 3: dBm, dBd, dBi and the 2.15 dB offset
- Cover Domain 4: velocity factor, skin effect and loss versus frequency
Installation, Connectors and Antennas
- Domains 5 and 6: grounding kits, bend radius, torque and passive intermodulation
- Domain 7: wavelength, ERP, tilt and polarization
FDR Testing and Interpretation
- Domains 8 and 9: calibration, DTF settings, and mapping traces to components and faults
- Practice reading return loss against manufacturer specifications
Operation, Troubleshooting and Full Review
- Domains 10 and 11: markers, limit lines, windowing, trace records and baseline comparisons
- Take timed practice questions across all eleven domains and revisit weak spots
For a more complete preparation framework, including resources, see LAS Study Guide 2026: How to Pass on Your First Attempt. When you are ready to test your recall under realistic conditions, the LAS practice tests give you question-style exposure across all eleven areas, and the one-page LAS Cheat Sheet 2026 is a useful final-week review.
Scheduling Mistakes That Cost Candidates Time
Importing Another Credential's Details
Several unrelated certifications use the same three-letter acronym. A forum post quoting an exam length, fee or testing window may describe one of those instead of Line and Antenna Sweeping. Always verify against ETA International and the competency document before acting on a number.
Booking the Knowledge Exam First in Your Mind
Because the course, fee and hands-on exam all precede the written test, planning around the knowledge exam alone leads to bad estimates. Build your timeline around the course date.
Ignoring the Journeyman Prerequisite
If you are on the journeyman CET route, forgetting that CETa or General Communications Technician Level 1 is additionally required can stall you late in the process. Confirm your status early.
Assuming Domain Weights Will Rescue You
No percentage weights are published, so there is no safe domain to neglect. A candidate who skips the antenna theory domain to over-invest in FDR operation is gambling without data.
Skipping the Return-on-Investment Check
Before you commit to a course date, make sure the credential serves your goals. Is the LAS Certification Worth It? Complete ROI Analysis 2026 and LAS Jobs describe the kinds of roles in tower, wireless infrastructure and RF commissioning work where sweep skills matter.
Frequently Asked Questions
Fixed national windows are not described in the verified facts for this credential. Because an ETA-approved course, a fee and a hands-on exam precede the knowledge exam, your timing largely depends on course availability. Confirm current scheduling directly with ETA International or your approved provider.
The sequence is an ETA-approved course, the associated fee and a hands-on exam, followed by the knowledge exam. You cannot go straight to the written test.
Only for the journeyman CET route, which additionally requires one of those credentials. The standalone route is distinct and does not carry that added requirement.
The question count, duration and passing score are not verified here. Confirm them with ETA International before test day rather than relying on figures from forums that may describe a different credential.
No percentage weights are published, so all eleven categories matter. If time is short, prioritize the FDR domains (testing, interpretation, operation and troubleshooting) alongside RF fundamentals and decibel math, since they underpin the hands-on and interpretive work. See the complete domains guide for detail.
Whatever date you ultimately land on, the best use of the waiting time is structured practice. Work through each domain, put in real instrument time, and use the LAS Exam Prep practice questions to confirm that your knowledge holds up across all eleven areas before you sit for the exam.