Question T1C05
From subelement T1 - T1C
Which of the following is a valid Technician class call sign format?
Why is this correct?
KF1XXX is the only valid Technician call sign format shown. Technician licenses are assigned from Groups C or D, which use either 2x3 format (like KF1XXX) or 1x3 format (like K1XXX). The other options are invalid for Technicians: KA1X is a 2x1 format assigned to Advanced class operators, and W1XX is a 1x2 format reserved for Amateur Extra class operators.
Memory tip
Remember the Technician limitation: no 1x2 or 2x1 formats allowed. Look for call signs with 3-letter suffixes (XXX) - these indicate Technician eligibility. Call signs with 1 or 2 letter suffixes require higher license classes.
Learn more
The FCC's call sign system reflects increasing frequency privileges with license advancement. Technician operators, having the most restricted frequency privileges, receive call signs with the longest suffixes (3 letters). As operators upgrade to General and Amateur Extra, they gain access to additional frequency segments and become eligible for progressively shorter, more prestigious call sign formats with 1 or 2 letter suffixes.
Think about it
Why do you think the FCC assigns longer call signs to entry-level license holders and shorter ones to advanced operators?