What is one way to produce a single-sideband phone signal?

To generate an analog Single Sideband (SSB) phone signal, the most common approach is the "filter method." This process begins with a balanced modulator, which mixes a radio frequency (RF) carrier with an audio signal. The unique property of a balanced modulator is that it suppresses the main carrier, outputting only the upper and lower sidebands, known as a Double Sideband Suppressed Carrier (DSB-SC) signal. Once the DSB-SC signal is created, it is passed through a highly selective band-pass filter, often a crystal filter. This filter is narrow enough to let only one of the sidebands pass through while rejecting the other, resulting in a true Single Sideband signal. Distractors mentioning a "product detector" are incorrect because a product detector is used in a receiver to demodulate an SSB signal, not to produce or transmit one. Reactance modulators are used for FM/PM, not SSB.