A distress signal, also known as a distress call, is an internationally recognized means for obtaining help. Distress signals are communicated by transmitting...

A distress hand signal is a hand signal to indicate distress and need of rescue. At sea, the oldest hand signal to indicate distress is to flap the arms...

bright light or intense heat without an explosion. Flares are used for distress signaling, illumination, or defensive countermeasures in civilian and military...

code Problems playing this file? See media help. SOS is a Morse code distress signal (  ▄ ▄ ▄ ▄▄▄ ▄▄▄ ▄▄▄ ▄ ▄ ▄ ), used internationally, originally established...

procedure word used internationally as a distress signal in voice-procedure radio communications. It is used to signal a life-threatening emergency primarily...

a novel by Greg Egan Distress (1946 film), a 1946 French film Distress (1929 film), a 1929 French silent film Distress signal, a recognized means for...

or signal pistol, is a large-bore handgun that discharges flares, blanks and smoke. The flare gun is typically used to produce a distress signal. The...

distress signal is a distress signal in the case of mountain emergency, an emergency in alpine areas. It involves repeating a sound or other signal six...

code as   ▄▄▄ ▄ ▄▄▄ ▄   ▄▄▄ ▄▄▄ ▄ ▄▄▄   ▄▄▄ ▄ ▄ ) is one of the first distress signals adopted for radio use. On 7 January 1904 the Marconi International...

referred to as a state of "urgency". This is distinct from a mayday call (distress signal), which means that there is imminent danger to life or to the continued...

The Bat-Signal is a distress signal device appearing in American comic books published by DC Comics, as a means to summon the superhero, Batman. It is...

Maritime Distress Safety System (GMDSS). DSC was developed to replace a voice call in older procedures. Because a DSC signal uses a stable signal with a...

(personal alert safety system), also known as a distress signal unit (DSU) or ADSU (automatic distress signal unit), is a personal safety device used primarily...

continuous 406 MHz distress radio signal, which is used by search-and-rescue teams to quickly locate the emergency and render aid. The signal is detected by...

and "yes") is used as a distress signal. Also signallable on a ship's whistle using Morse code. See International Code of Signals. Historically, in a CAM...

only monitors distress signals from emergency position indicating radio beacons (EPIRBs) that broadcast using digital 406 MHz signals. Digital 406 MHz...

felon Distress signal, a message from a person or a craft such as a ship or airliner to inform others it is in difficulty Mayday (distress signal) SOS...

three-letter codes that each start with the letter "Q". It is an operating signal initially developed for commercial radiotelegraph communication and later...

and signal processors capable of locating an emergency beacon anywhere on Earth transmitting on the Cospas-Sarsat frequency of 406 MHz. Distress alerts...

passengers out of the lifeboat and into the sea. Distress signal Simulated Titanic distress signal, in Morse code: "SOS SOS CQD CQD – MGY WE ARE SINKING...

A duress code is a covert distress signal used by an individual who is being coerced by one or more hostile persons. It is used to warn others that they...

absolutely certain it was a distress signal from the Titanic. Cottam said that he had indeed received a distress signal from the Titanic, which required...

A thumb signal, usually described as a thumbs-up or thumbs-down, is a common hand gesture achieved by a closed fist held with the thumb extended upward...

and Yes) is used as a distress signal. Also signallable on a ship's whistle using Morse code. See International Code of Signals. The Z flag was also famously...

to receive this wave length, for the purpose of determining if any distress signals or messages are being sent and to determine if the transmitting operations...

2009. Air-ground radiotelephone service Airband Distress signal Mayday Transponder (aeronautics) "Distress/Emergency Frequencies". skybrary.aero. Retrieved...

talk to Optimus Prime and Jazz who had just come from receiving a distress signal from his prison. In the 2024 animated film, Transformers One, Sentinel...

of distress radio beacons: EPIRBs (emergency position-indicating radio beacons) signal maritime distress ELTs (emergency locator transmitters) signal aircraft...

have proven unsuccessful. The 1940 version of the story told of a distress signal being sent out in an area south of the Solomon Islands. The first received...

planned flag salute: At a signal from the Principal the pupils, in ordered ranks, hands to the side, face the Flag. Another signal is given; every pupil gives...