Tag: signal

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Electromagnetics, the W8JK Antenna, and the ‘Wow!’ Signal

Electromagnetics, the W8JK Antenna, and the “Wow!” Signal Or, “My friend, the Ohio State Professor, Dr John Kraus, W8JK” Bob HoufK7ZB Antenna enthusiasts will recognize the call…

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The Real FT8, JT65, and JT9 Signal-to-Noise Ratio Revealed

SNR –  Signal-to-Noise Ratio From the 2018 TAPR Digital Communications Conference, we learn about a true measurement of signal to noise ratio on some of…

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Space Station Digital Amateur Television Signal Not Being Seen on the Ground

The signal from the digital amateur television (DATV) transmitter aboard the International Space Station (ISS) cannot be detected on the ground, Amateur Radio on the…

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More Frequent Spotless Days Now, Can Signal Solar Activity in the Future, Top Contester Says

The sunspot numbers have not been good, and it does not seem they’ll be getting much better anytime soon. According to the April 6 “K7RA…

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V55V, Big Signal out of Namibia, to Go Silent

Martin Walter, V51W, near Omaruru, Namibia, has spent the past 2 decades improving his station, which likely accounts for his V55V station’s increasingly better signal….

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Video V55V Namibia Rhombics Big Signal out of Africa. From DXNews.com

For over 20 years Martin (V51W/V51MW) was improving his Station. After he has tried all possible antenna systems he was convinced that his Rhombic Antennas…

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Radio ham finds signal from ‘dead’ NASA satellite

Radio ham finds signal from ‘dead’ NASA satelliteScott Tilley VE7TIL / VA7LF discovered a signal from the IMAGE satellite that NASA lost contact with in…

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Sharc Digital Signal Processor

L’elaborazione digitale dei segnali consente di ottenere risultati di gran lunga superiori a quelli che si avrebbero con un’elaborazione analogica. In quest’ambito hanno riscosso grande…