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SOTA Mapping Project (SMP) is a website (www.sotamaps.org) offering mapping resources for radio amateurs participating in the Summits On The Air (SOTA) awards program. It aims to provide comprehensive mapping information in graphical form based on Google Maps on summits included in the program, for participants in the program as well as for the ...
The track list or point of interest list may be in GPX, KML, NMEA or other format. Most digital cameras save the time a photo was taken. Provided the camera clock is reasonably accurate or used GPS as its time source, this time can be correlated with GPS log data, to provide an accurate location. This can be added to the Exif metadata in the ...
HF radio and antenna (plus software if automatic updating of computer time is desired) TrueTime TL-3 WWV Receiver; ntpd with Radio WWV Audio Demodulator/Decoder (driver can tune ICOM HF radios via C-IV) COAA's Radio Clock [21] F6CTE's CLOCK [15] WWVH: 5, 10, and 15 MHz AM Voice with modified IRIG-Hformat time code on 100 Hz sub-carrier (CCIR code)
Military GPS receivers, such as the Precision Lightweight GPS Receiver (PLGR) and Defense Advanced GPS Receiver (DAGR), are used by radio operators within a radio network to properly input an accurate time to said radios internal clock. More modern military radios have internal GPS receivers that synchronize the internal clock automatically.
Time synchronization over radio is the procedure used for time transfer performed by humans over two-way radio circuits, including voice, telegraph, and teletype. [ 1 ] Radiotelegraph procedure
GPS Exchange Format (GPX) is an XML schema designed as a common GPS data format for software applications. It can be used to describe waypoints , tracks , and routes. It is an open format [ 2 ] and can be used without the need to pay license fees.
The pilot of a helicopter that crashed into a Houston radio tower on Oct. 20, killing all four people aboard, was in contact with air traffic control moments before the tragedy occurred, officials ...
Today, global navigation satellite systems radio signals are used to precisely distribute time signals over much of the world. There are many commercially available radio controlled clocks available to accurately indicate the local time, both for business and residential use. Computers often set their time from an Internet atomic clock source ...
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