Updated: Feb 19, 2026 | Source: 2026-2030 Question Pool | Topic: T1C
T1C05T1C

Which of the following is a valid Group D call sign format for Technician class?

Deep Dive: T1C05

The official 2026-2030 Question Pool answer is A: KF1XXX. This Technician question is synchronized with the current NCVEC release and incorporated errata. Use the exact wording and answer key shown here when preparing for the current exam pool.

Why Other Answers Are Wrong

Option B: This is not the keyed answer in the current official pool. The official keyed answer is A: KF1XXX. Option C: This is not the keyed answer in the current official pool. The official keyed answer is A: KF1XXX. Option D: This is not the keyed answer in the current official pool. The official keyed answer is A: KF1XXX.

Exam Tip

For T1C05, remember the current official key: A - KF1XXX.

Memory Aid

T1C05: A - KF1XXX

Source & Coverage

Question Pool: 2026-2030 Question Pool

Subelement: T1C

Reference: 2026-2030 Question Pool · T1 - FCC Rules, descriptions and definitions for the Amateur Radio Service

Key Concepts

T1C Technician question pool official answer key

Official Pool Source

Question text and answer key are synchronized with the current NCVEC Technician Class pool and mapped to the T1C topic.