airborne relay communications

airborne relay station

communications relay

communications relay group (CRG)

tactical communications radio relay drone

Boeing E-4 Advanced Airborne Command Post (AACP) / E-4 National Airborne Operations Center (NAOC)

command artillery radio relay company

command radio relay and cable company

optical relay

radio relay

radio relay facilities

radio relay station

relay

relay through

relay to…

tape relay

guided missile relay working group

laser relay unit (LRU)

orbiting laser beam relay unit

starter relay

calling relay

relay transmitter

differential relay (integrated device)

frequency relay

line-of-sight radio-relay system

radio-relay communication

starter disengagement relay

line-of-sight microwave radio relay system

line-of-sight radio relay link

aerial radio relay

back-to-back relay

aerial relay aircraft

aerial relay ретрансляція