Collocations for emit - verb

Emit is used with these nouns as the subject:
transmitter

Emit is used with these nouns as the object:
aura, beam, carbon dioxide, flash, fumes, gas, groan, gurgle, light, moan, noise, odour, pollutant, pollution, radiation, ray, scream, shriek, signal, smoke, sound, spark, stream, vapour, wave