channel unit

battery coolant unit / battery-coolant unit (BCU)

gear reduction unit / gear-reduction unit

position and navigation unit / position navigation unit (PNU)

pinch (a unit) out of a large unit

channel of command

channel routes

drainage channel

duplex / two-way channel

fixed frequency channel

half-duplex channel

searched channel

simplex channel

single-channel ground and airborne radio system (SINCGARS) radio

quick-fire channel

beam channel

in the period in which the communications channel has been open

fire channel

fire-support channel

information collection channel

nonnuclear fire request channel

nuclear fire request channel

reconnaissance fire channel

converging channel

diverging channel

control channel

adjacent channel

audio channel

audio-frequency channel

recording channel

reproducing channel

channel decoder

channel resistance