The peak power output of a single-sideband transmitter, when being tested by a two-tone generator is:

A standard method for evaluating a Single-Sideband (SSB) transmitter's linearity and peak output is the two-tone test. When two unmodulated, equal-amplitude audio tones are fed into the transmitter, they combine to produce an RF envelope that rapidly peaks and dips as the tones drift in and out of phase. Mathematically, the Peak Envelope Power (PEP) of a combined two-tone signal is twice the average power of the combined signal. The official exam answer phrases this concept as being 'twice the RF power output of any of the tones.' Candidates should interpret this as a foundational rule for two-tone testing: the peak power generated by the interacting waves reaches exactly double the steady-state power reference.