Difference between Distress Signal and Sirens

DISTRESS SIGNAL vs SIRENS: NOUN

An international signal used by a distressed ship or aircraft to request help.
An internationally recognized signal sent out by a ship or plane indicating that help is needed

Plural form of siren.
A woman who is considered to be dangerously seductive
A sea nymph (part woman and part bird) supposed to lure sailors to destruction on the rocks where the nymphs lived
A warning signal that is a loud wailing sound
An acoustic device producing a loud often wailing sound as a signal or warning
Eel-like aquatic North American salamander with small forelimbs and no hind limbs; have permanent external gills

Trawler, Cqd, Lifeboats, Cape verde islands, Alvei, Flotation device, Morse code, Vhf, Beep, Transponder, Alarm, Altimeter, Distress, Coastguard, Mayday

Klaxon, Radios, Lights, Beep, Family sirenidae, Sirenidae, Raid, Mermaids, Alert, Whistles, Alarms, Delilah, Enchantress, Temptress, Femme fatale

Trawler, Cqd, Lifeboats, Cape verde islands, Alvei, Flotation device, Morse code, Vhf, Beep, Transponder, Alarm, Altimeter, Distress, Coastguard, Mayday

Burglar alarm, Blare, Smoke alarm, Strobes, Claxon, Gunshots, Klaxon, Radios, Lights, Beep, Mermaids, Alert, Enchantress, Temptress, Femme fatale

Devastator warship, the ESS Crimson sends out a distress signal.
Three shotsfired at distinct intervals usually indicate a distress signal.
Dumbledore receives her distress signal and dives in after them.
Have you heard or seen distress signal from survival craft?
The flag is only put upsidedown as a distress signal.
Ceres Station when the crew receives a distress signal.
The trainee also surfaced and gave a distress signal.
The third image is not a distress signal.
Distress Signal The distress signal is MAYDAY, MAYDAY, MAYDAY followed by the name of station or station call letters repeated three times.
The Distress Signal Light emits a high _____________________________ visual distress signal visible for great distances.

Various sirens that have been found in Ohio.
The sirens were close now, loud and clear.
The sirens are tested on a quarterly basis.
They have started using high pitched sirens too.
To avoid running aground when the Sirens sing?
We always heard the sirens and ignored them.
Definitions Civil Defense Sirens: In Minnesota, the sirens are ONE METHOD of notifying residents of the presence of a Severe Weather Warning.
Lo sirens, which offer a different sound than traditional sirens, and will be used to alert residents to.
These sirens are used in applications where conventional sirens dont fit it.
Lo sirens, a different sound than traditional sirens.