позивний мережі зв’язку, загальний позивний
tactical sign (tac-sign)
collective сall sign
call sign (callsign)
net call sign
tactical call sign
circular call sign
address call sign
call sign
visual call sign
voice call sign
call sign (signal)
radio call sign
collective call
call up (call-up)
conventional sign
marking sign
hazard sign
mine sign
BIO sign
crossing sign
deviation sign
aerodrome identification sign
sign
challenging sign
gas warning sign
trail sign
warning sign
code sign
recall sign
collective action
collective defense
collective defense operation