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AM broadcasting
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====Shortwave broadcasting==== ''[[Shortwave]]'' (also known as [[High frequency]] (HF)) transmissions range from approximately 2.3 to 26.1 MHz, divided into 14 broadcast bands. Shortwave broadcasts generally use a narrow 5 kHz channel spacing. Shortwave is used by audio services intended to be heard at great distances from the transmitting station. The long range of shortwave broadcasts comes at the expense of lower [[High fidelity|audio fidelity]]. Most broadcast services use AM transmissions, although some use a modified version of AM such as [[Single-sideband modulation]] (SSB) or an AM-compatible version of SSB such as "SSB with carrier reinserted".
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