Ham Radio Extra Class Practice Test 2025 - Free Extra Class License Exam Questions and Study Guide

The typical bandwidth of a properly modulated MFSK16 (Multiple Frequency Shift Keying with 16 tones) signal is indeed around 316 Hz. This modulation technique utilizes multiple frequencies for signaling, where each of the 16 tones is separated by a certain frequency spacing.

In MFSK16, the modulation usually requires a specific tone spacing to allow for the transmission of data effectively. The bandwidth can generally be estimated using the formula for the bandwidth of an MFSK signal, which is approximately equal to the number of tones multiplied by the spacing between tones. In the case of MFSK16, the formula considers the spacing typically used for clarity in the signal reception and to avoid interference or overlapping frequencies.

Thus, when analyzing the characteristics of the modulation and its bandwidth usage, 316 Hz is the correct representation, as it aligns well with the requirements for an efficient and clear transmission within the designed parameters of the MFSK16 scheme.