Sources and provenance
Every fact in this material traces to a document listed here. Each was downloaded once, hashed, and recorded; the build fails if a file on disk stops matching its recorded hash, so a silently revised question pool cannot slip in unnoticed.
NCVEC — question pools
2026-2030 Technician Pool and Syllabus (Element 2), Feb 19 2026 errata
- Kind
- question-pool
- Retrieved
- 2026-07-30
- Changes
- New pool every 4 years; errata mid-cycle
sha256 c3bb9ebf46730a9812ae854d12a93f07b7a38f521441e51c451e917ccb9e3a54
Public domain. The NCVEC Question Pool Committee states on the release page: "The NCVEC Question Pool Committee (QPC) hereby releases the 2026-2030 Technician Class (Element 2) Question Pool into the public domain." Separately, 47 CFR 97.523 requires each pool to be published before use. Questions are reproduced verbatim because a paraphrase would defeat the purpose of study material. Verified 2026-07-31 at https://ncvec.org/index.php/2026-2030-technician-question-pool
2023-2027 General Class Pool and Syllabus (Element 3), 6th errata Feb 4 2026
- Kind
- question-pool
- Retrieved
- 2026-07-30
- Changes
- Pool expires 2027-06-30
sha256 a07b15d6b9b7aef9e51dae3dd7d37b23de1d7bb410733b7ac6323eaac2f4b396
Public domain. "The NCVEC Question Pool Committee hereby releases into public domain the 2023-2027 General, Element 3, Question pool." Verified 2026-07-31 at https://ncvec.org/index.php/2023-2027-general-question-pool-release
2024-2028 Amateur Extra Pool and Syllabus (Element 4), 4th errata Feb 4 2026
- Kind
- question-pool
- Retrieved
- 2026-07-30
- Changes
- Pool expires 2028-06-30
sha256 581ff3aa4c98bb2a6fcc303fe1ce19beb29bc7d3d02ff7fe5c6162c4c26ce4f7
Public domain. "The NCVEC Question Pool Committee hereby releases into public domain the 2024-2028 Element 4 Extra Class Question Pool." Verified 2026-07-31 at https://ncvec.org/index.php/2024-2028-extra-class-question-pool-release
Technician Diagram T-1 (2026-2030)
- Kind
- pool-diagram
- Retrieved
- 2026-07-30
- Changes
- With pool
sha256 7e5f000404feeae942c625a773f0a02c3ee3b5bafda2218d6b8b0d3653288462
Published on the same NCVEC release page as the pool it belongs to, under the same public-domain statement, and titled as that pool's graphics. The release wording names "the Question Pool"; the graphics are distributed as part of it. Verified 2026-07-31.
Technician Diagram T-2 (2026-2030)
- Kind
- pool-diagram
- Retrieved
- 2026-07-30
- Changes
- With pool
sha256 36313bc65ea22bd483e9b0ff2cd8e7dbce3784e2b009046879d8e5959cc9ebf7
Published on the same NCVEC release page as the pool it belongs to, under the same public-domain statement, and titled as that pool's graphics. The release wording names "the Question Pool"; the graphics are distributed as part of it. Verified 2026-07-31.
Technician Diagram T-3 (2026-2030)
- Kind
- pool-diagram
- Retrieved
- 2026-07-30
- Changes
- With pool
sha256 6db1d838f067ecd00a1ee8ad1e396c9e4d4415cfbc75764169a7bc868e44dc52
Published on the same NCVEC release page as the pool it belongs to, under the same public-domain statement, and titled as that pool's graphics. The release wording names "the Question Pool"; the graphics are distributed as part of it. Verified 2026-07-31.
General Class Figure G7-1 (2023-2027)
- Kind
- pool-diagram
- Retrieved
- 2026-07-30
- Changes
- With pool
sha256 13b8ed81fc963ec1c24a414c78a288d658e52ff5d89e58c775aff85f17e57c3f
Published on the same NCVEC release page as the pool it belongs to, under the same public-domain statement, and titled as that pool's graphics. The release wording names "the Question Pool"; the graphics are distributed as part of it. Verified 2026-07-31.
2024-2028 Amateur Extra pool diagrams (SVG set)
- Kind
- pool-diagram
- Retrieved
- 2026-07-30
- Changes
- With pool
sha256 baf46fe88b6914f971f446bfdc1550622d0dcf89d1bfb938ef0dfdcaa85aa558
Published on the same NCVEC release page as the pool it belongs to, under the same public-domain statement, and titled as that pool's graphics. The release wording names "the Question Pool"; the graphics are distributed as part of it. Verified 2026-07-31.
FCC — 47 CFR
47 CFR Part 97 — Amateur Radio Service
- Kind
- regulation
- Retrieved
- 2026-07-30
- Changes
- Amended irregularly; re-pin annually
sha256 7b86cd2b22f11437adc8720a19fd244529295a1f76728c214cb91b4e3c4583e3
US Government work — not subject to copyright (17 U.S.C. 105)
47 CFR Part 95 Subpart A — Personal Radio Services general rules
- Kind
- regulation
- Retrieved
- 2026-07-30
- Changes
- Re-pin annually
sha256 72c87c6cea02b19fc115a76b956eb9357c915c058a2f3d5b40753d92a9a4b8ae
US Government work
47 CFR Part 95 Subpart E — General Mobile Radio Service
- Kind
- regulation
- Retrieved
- 2026-07-30
- Changes
- Re-pin annually
sha256 f749dcb00fd85e49e88706dd6195a86ee23c9b2f66d654998780f3bef07d483f
US Government work
47 CFR Part 95 Subpart B — Family Radio Service
- Kind
- regulation
- Retrieved
- 2026-07-30
- Changes
- Re-pin annually
sha256 80de355b8cfb795c0de3998146a9e264281a5cd47caf85afb2624def89d62b85
US Government work
47 CFR Part 95 Subpart J — Multi-Use Radio Service
- Kind
- regulation
- Retrieved
- 2026-07-30
- Changes
- Re-pin annually
sha256 363203234d6c21d49c0124796e03449ff895a0d74748a21aafaca57c98c7a372
US Government work
47 CFR Part 13 — Commercial Radio Operators
- Kind
- regulation
- Retrieved
- 2026-07-30
- Changes
- Re-pin annually
sha256 205dc580e2d7b781a9abf7f7f046f6aa4e3c684bb25d8f97d99ae2ff17a70fae
US Government work
47 CFR 1.1310 — Radiofrequency radiation exposure limits
- Kind
- regulation
- Retrieved
- 2026-07-30
- Changes
- Re-pin annually
sha256 3411fe10e00aecd5d08d92ab56c80144d1fc0e10c3c9bf07ae1ecc9e311a3cea
US Government work
47 CFR 1.1307 — Actions that may have a significant environmental effect (RF exposure evaluation)
- Kind
- regulation
- Retrieved
- 2026-07-30
- Changes
- Re-pin annually
sha256 12d540206a22b451c878c58709e131f29f26a9cdbd177153fb99abba3519a495
US Government work
47 CFR 1.931 — Special temporary authority (wireless radio services)
- Kind
- regulation
- Retrieved
- 2026-07-30
- Changes
- Re-pin annually
sha256 eaacb363916a9843859c8679f80ad254d47b69a67e5f7964162a72764e8af299
US Government work
47 CFR 1.949 — Application for renewal of authorization
- Kind
- regulation
- Retrieved
- 2026-07-30
- Changes
- Re-pin annually
sha256 69c04d5b81ebcbdc00ad4d06d7e91b31656cf361e9683cf34f75ee51c7067076
US Government work
47 CFR Part 87 — Aviation Services
- Kind
- regulation
- Retrieved
- 2026-07-30
- Changes
- Re-pin annually
sha256 4e07adac2ec6bfa8663ff8df537475077e8728d9f9012ddfac9f032a04ecf0f3
US Government work
FCC Public Notice DA 16-1048 — Amateur Service Operation in CEPT Countries
- Kind
- guidance
- Retrieved
- 2026-07-30
- Changes
- Reissued when the CEPT participant list changes
sha256 129632912ba8396175cc4c473b873ccb946fb1e5075e817d3df7c459374a4a97
US Government work
OET Bulletin 65 Supplement B — Amateur Radio RF exposure evaluation
- Kind
- guidance
- Retrieved
- 2026-07-30
- Changes
- Rarely revised; superseded in part by the 2019/2021 rule changes
sha256 9127a2a9850cc51957b5fa6f77e28cb444938c094be547efe22da87eb0bb4559
US Government work
FAA — 14 CFR
14 CFR Part 107 — Small Unmanned Aircraft Systems
- Kind
- regulation
- Retrieved
- 2026-07-30
- Changes
- Re-pin annually
sha256 8d448ab10578dfaf1f01e75f6d435ee1a42fde54067932c8594c3b1f2ce2951d
US Government work
14 CFR Part 89 — Remote Identification of Unmanned Aircraft
- Kind
- regulation
- Retrieved
- 2026-07-30
- Changes
- Re-pin annually
sha256 f1cf8efa31b183dc3a9c4325a9db60db05b9ae387c05afb8260357e80e299171
US Government work
nist
15 CFR Part 200 — NIST Standard Frequency and Time Service (WWV/WWVH/WWVB)
- Kind
- regulation
- Retrieved
- 2026-07-30
- Changes
- Rarely revised
sha256 78412fbdaaa504984d8a596c49f7a5720072c0e84d70de95794e378fde5f18e6
US Government work
belden
Belden 8259 (RG-58C/U) technical data sheet
- Kind
- reference
- Retrieved
- 2026-07-30
- Changes
- Revised occasionally; re-pin if loss figures are quoted
sha256 f8044d678cc31847862f2848fae476b582972fb9128317e793c5918247f66399
Manufacturer datasheet, published openly for specification purposes. Stored locally so the loss figures in the feed-line lab can be verified against the source; not redistributed.
Belden 9258 (RG-8X) technical data sheet
- Kind
- reference
- Retrieved
- 2026-07-30
- Changes
- Revised occasionally
sha256 68d4f70dbaeeda2bbdaa347b27bb1cabf580dc4322088e8042a9c05fb3ee3ada
Manufacturer datasheet, published openly. Stored for verification only.
times-microwave
Times Microwave LMR-400 flexible low-loss coax datasheet
- Kind
- reference
- Retrieved
- 2026-07-30
- Changes
- Revised occasionally
sha256 a28ff0cf13d685c4e22d3b0a134ecce8337059c3b19a96a357d70a7e6a9e812d
Manufacturer datasheet, published openly. Stored for verification only.