Екоу (умовна назва літери Е у фонетичному алфавіті)
phonetic alphabet
Zulu (phonetic alphabet)
Mike (letter M in the phonetic alphabet)
echo location/echo ranging
phonetic symbol
random mixed alphabet
military alphabet designation
alphabet code flag
alphabet rations
E – ECHO
echo (returned signal)
echo depth finder
echo sounder
echo sounding
bottom echo
bottom echo signal
coherent echo
coherent echo modulation and detection
Doppler echo indicator
echo area
echo frequency
echo intensity
mirror-reflection echo
precipitation echo
second-trip echo
echo
target echo
skin echo