Today, it become easy to display where and when we are “on air” and to display it in real time such as on your QRZ.com page, twitter or on your own blog, like here:
From 2 to 10 March 2013 the famous DX activation Clipperton Island DXpedition, with callsign TX5K will be live and on air !
Clipperton Island or “Île de la Passion”, is a French island located 12 000 kms of France in the Pacific Ocean.
The team has set up a website dedicated to real-time monitoring of the DXpedition TX5K and available at http://www.dxa2.org/
The site give the last QSO and ongoing, the time remaining before the end of the expedition, the total number of QSOs made, modulation modes and frequency bands activated, a message of the latest activities of the team, and the ability to check if the QSO is confirmed by entering your hamradio callsign.
A nice idea and realization, missing just oen thing, a twitter account linked to communicate in real-time with the TX5K Community Manager 🙂
Severals kind of services are available online to track Hurricane Irene, which is the first of the 2011 hurricane season in the Atlantic.
For the first time also, the City of New York had to be ordered a mandatory evacuation of the city for 370 000 people. In the East Coast of the United States, nearly 1 million people have had to be evacuated. Hurricane Irene has a diameter of about 820 km, the equivalent of almost 1/3 third of the total length of the U.S. east coast.
LiveStream Hurricane Irene
A special livestream of Hurricane Irene live broadcast from Manhattan:
Because Hurricane Irene heads up the eastern seaboard and New York, where 250,000 people were evacuated due, Google Maps is providing update of its service real-time tracking of storms, as well as forecastsof rain and hurricanes impacts.
The service is available in the Google Crisis Response project, already used in the past for example for the earthquake in Haiti, and available here: http://crisislanding.appspot.com/
You can also check the new Google Maps Weather Forceast services :
Morse Decoder can be used by Ham Radio operators or anyone else interested in decoding Morse code from a Radio or any other device.
Morse Decoder includes a “waterfall” to show a frequency spectrum of about 50Hz to 2300Hz. A narrow band DSP filter can be set for the frequency of the Morse code tones by tapping the waterfall. The DSP filter is followed by an automatic gain control (AGC) to compensate for changing signal strengths.
The detected signal will be shown as a graph and several algorithms will then detect the speed of the Morse code and convert them into readable text. Speeds of less than 4 Wpm (Words per Minute) to more than 50 Wpm can be decoded.
How to decode morse with a Android phone:
Place your Android phone against the speaker of the radio or the device which transmit the Morse code. If there is a tone present the waterfall will display a blue or white vertical line (As stronger the signal as brighter the line) Slide the red rectangular on top of the vertical line. Even though Morse Decoder uses a 200Hz wide AFC (automatic frequency control) it is recommended to move the slider always on top of the vertical line. It may take several initial characters containing both dots and dashes before the WPM speed estimation acquires the actual Wpm and decodes the characters correctly.