позивний сигнал
calling officer
calling party
Digital Selective Calling (DSC)
calling equipment
calling jack
calling relay
automatic calling equipment
selective calling system, SELCAL system
calling-up paper
Signal Kit / MK-79 (illumination signal kit)
acknowledgement signal
arm-and-hand signal
audio signal
caution signal
combined signal
command and signal
command signal center
control signal
distress signal (=SOS)
echo (returned signal)
field army signal brigade
flash a signal
forward area signal center
hand signal
hoisting signal flags
jamming signal
main signal center
prearranged signal
pyrotechnic signal
radio alarm signal
radio frequency signal
recognition signal