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Syncword
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<p>In <a href="/facts/Computer_network/3w5RM99p">computer networks</a>, a syncword, sync character, sync sequence or preamble is used to synchronize a <a href="/facts/Data_transmission/1yAhaANd">data transmission</a> by indicating the end of <a href="/facts/Header_(computing)/DSbn3tM1">header</a> information and the start of data. The syncword is a known <a href="/facts/Sequence/gV2S4uqp">sequence</a> of data used to identify the start of a frame, and is also called <i>reference signal</i> or <i>midamble</i> in <a href="/facts/Wireless_communications/GfDoFwfo">wireless communications</a>. </p><p><a href="/facts/Prefix_code/461neBYx">Prefix codes</a> allow unambiguous identification of synchronization sequences and may serve as <a href="/facts/Self-synchronizing_code/5SJJwxAK">self-synchronizing code</a>. </p>