distress signal Definition

mayday, coastguard, distress, altimeter, alarm, transponder, beep, vhf, morse code, flotation device, alvei, cape verde islands, lifeboats, cqd, trawler, motor vessel, capsized, beacons, fishing boat, cargo ship, dismasted, vessel, kamchatka peninsula, rescuers, skiff, radioed, tatar strait, pinger, warning, signals, sailboat, unimak island, tugboat, overflew, minelayer, nivose, buoys, tai yuan, dismasting, autopilot, towline, ship, teletype, katmai, telex, ouessant, rafts, brigantine, frigate, radiotelephone, crewman, waterspout, warship, caravel, headsail, ushant, plane, rudder, sirens, wreckage, kerguelen, scilly islands, uscg, patera, lifebuoy, summons, bathyscaph, life preserver, spitzbergen, chelyuskin, yola, alerting, echo sounder, ventose, dispatcher, helicopter, fernando de noronha, shipmaster, burglar alarm, floe, funnel cloud, dinghy, minisub, notification, cabin cruiser, ashore, amalthea, semaphore, starboard, antiaircraft fire, demarche, dropsonde, guided missile frigate, pirates, transmitter, abeam, ice floe, boat, unseaworthy, dhow,