Definition of "subchannel" []

• A distinct division of a channel or frequency band (noun)
• A distinct part of an I/O channel associated with a specific device (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "A subchannel is the smallest logical unit in the OFDMA frequency domain."
• "KMYU is a digital subchannel of Salt Lake City's CBS affiliate, KUTV, and has been a My Network TV affiliate branded as "My Utah TV" since last September."
• "Also, KERA does have a DTV subchannel, 13.2 KERA World."