EPIRB, ELT, PLB, personal locator beacon, emergency, position indicating, radio beacon, emergency locator transmitter, ACR Electronics, GME,
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Navigation programs, seminars, tutorials, etc.
U.S.Naval Observatory
Online Service: Sun and Moon rise and set times, Moon phases, eclipses, seasons, positions of solar system objects, and other data
Publications: astronomical and navigational almanacs, special publications, research reports
background information on common astronomical phenomena, calendars and time, and related topics
Software: computer almanac for PCs and Macs, and more

aa.usno.navy.mil
MFJ,LDG,Radiation,Propagation,Tune,Tuning,Operate,Operating,Morse,Code,VSWR,Transmit,Receive,sonar, echo sounder, echosounder, fishfinder, fish finding, Goiot, Anti slip, Anti Corrosion, GUINDEAUXVolkers Crashkurs
Online crash course for celestial navigation
Segeln, Sail, Segel, Voiles, Boot, Bootsbau, WiFi, Batterien, Barometer, Sextant, Reff, Reef, Aluminium, Yacht, Jacht, Ketch, Monohull, Software, Secumar, Aries, Tinker, Beiboot, Refleks, Lee Sails, Freediver, Tiefenschnorchel, RadpilotAstronavigation
Online tutorial, books, cardboard Sextant Kit
amateur,radio,homebrew,electronics,construction,EI9GQ,transmitter, receiver,antenna,ssb,modulator,demodulator,mixer,DBM,fet,transistor, wetter, wetterkarten, wetterdekoder, Windsteueranlage, Aries, WindpilotAstro - Navigation
GPS, navigation, celestial navigation
MFJ,LDG,Radiation,Propagation,Tune,Tuning,Operate,Operating,Morse,Code,VSWR,Transmit,Receive,sonar, echo sounder, echosounder, fishfinder, fish finding, Goiot, Anti slip, Anti Corrosion, GUINDEAUXWikipedia Astronomische Navigation
Celestial navigation is a term that describes all the procedures for determining the position through the observation of heavenly bodies (sun, moon, planets or selected fixed stars).
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