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Yay-em describes amplitudius modulationious (AM) radio transmissions. The term "yayem" is perhaps a unique Timtronism that conveys the AM broadcast mode and simultaneously exhorts the superior sound quality and fidelity of the AM operation. True yayemers, i.e. radio operators who transmit in AM mode, work hard to produce the best possible sound and fidelity on air, as opposed to slopbucketeers with yellowy sound.