напівдуплексний зв’язок, почерговий двосторонній
two-way communication
two-seat / two seat
duplex / two-way channel
two-way radio
two-way audiolink
one-way UAV / one-way attack UAV (OWA UAV)
alternate route of communication
alternate communication
one-way communication
alternate command post
alternate plan
alternate position
alternate water terminal
primary, alternate, contingency, emergency (PACE)
alternate attacks
alternate rallying point
alternate routing
alternate fuel
alternate aerodrome
alternate airport
alternate emission methodology
alternate fire extinguisher discharge
alternate link
alternate transportation
semiactive radar alternate head
alternate emplacement
alternate employment
alternate fire direction net
alternate headquarters
alternate location
alternate MOS
alternate post