artillery sound reconnaissance

sound ranging (artillery sound ranging)

counter reconnaissance / counter-reconnaissance

artillery reconnaissance

artillery electronic reconnaissance

artillery instrumental reconnaissance

artillery optical reconnaissance

artillery radar reconnaissance

artillery reconnaissance group

missile and artillery reconnaissance unit

SNAR ground artillery reconnaissance radar station (Russia)

artillery reconnaissance party

artillery instrument reconnaissance

artillery reconnaissance and observation

main artillery (major caliber artillery)

artillery and rocket artillery

clicking sound

communications by sound

high-intensity sound

sonar (sound navigation and ranging)

sound communication

sound wave

sound-absorbent tile

stun grenade / flash grenade / flashbang / thunderflash / sound bomb

supersonic speed (exceeds speed of sound / Mach 1)

sound damping

aerial sound ranging

air registration point (in sound ranging)

high-frequency sound waves

sound-proof compartment

background sound pressure level

overall sound pressure level

adjusted slope of sound pressure level