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Propagation Forecast Bulletin #4 de K7RA:

Propagation Forecast Bulletin #4 de K7RA:
"The Bruce Array at the entrance to the Green Bank site is a rebuild of the antenna used by physicist Karl Jansky who in the 1930s studied radio noise for the Bell System's HF radio circuits. "Jansky eliminated all noise sources except one which …
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Cross Country Wireless release HF Active Antenna
The HF Active Antenna was developed during work on the Sentinel HF SDR noise measuring system. The antenna is a balanced small dipole type with an overall length of 1.4m. The frequency range is 100 kHz to 50 MHz. The antenna uses ethernet cable to …
Read more on Southgate Amateur Radio Club

Checking Putin
"Putin is a paranoid, aging dictator who believes he is Russia," says chess-champion-turned-human-rights-activist Garry Kasparov. "Russia today is not like the old Soviet Union or modern China. It is not an ideological dictatorship with the Politburo …
Read more on Reason (blog)

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2 Transmission Lines: Wave Propagation

Engineering Electromagnetics by Prof. Sheel Aditya sir.

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Antenna Fundamentals 1 Propagation

A brief overview of important propagation fundamentals when using Radios. Made by the Film Board of Canada for the Royal Canadian Air Force.

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Radio Propagation 101

This video gives you the basics of Radio Propagation: Basic information that includes Sun Spots, Solar flux, K and A factors Why should you be interested in …
Video Rating: 4 / 5

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Past SCM, DXer, Propagation Forecaster Lee Wical, KH6BZF, SK

Lee C. Wical, KH6BZF, of Kaneohe, Hawaii, died May 2 after a period of declining health. He was 79 and had not been active on the air in recent years. Growing up in Ohio, Wical became interested in radio after getting an old Atwater-Kent from his grandfather in 1938, becoming a BCL and, later, an SWL. His uncle and a cousin both were hams. His early aspirations were to become a minor league bas…

American Radio Relay League | Ham Radio Association and Resources

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Amateur Radio Propagation Guru Says Extended Solar Ebb May Lie Ahead

Amateur Radio propagation and solar phenomena authority Carl Luetzelschwab, K9LA, said in an April 27 webinar, “Are We Headed into Another Maunder Minimum? What Does That Mean for Propagation?” that most solar scientists believe several low solar cycles lie ahead, ushering in periods of diminished HF propagation, especially on the higher bands. Luetzelschwab, who maintains K9LA’s Amateur Radio …

American Radio Relay League | Ham Radio Association and Resources

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Propagation from XF4, 14 MHz, for March 2011; prediction by HAMCAP-DXATLAS

Screen Captures from HAMCAP – DX ATLAS. Propagation from XF4 on 20 meters.

The Arduino is connected to the server of the Reverse Beacon Network and gets the actual data and displays them on an RGB shield. Description, filters and so…
Video Rating: 0 / 5

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MARS Okays HF Transmission Methods Study for Propagation Failures

Meeting in Atlanta, Georgia, September 17-19, US Army MARS national leadership approved a study of HF transmission methods for use in extreme propagation failures, and it invited nominations for an IT specialist to coordinate such a project. Program Officer Paul English, WD8DBY, who presided, addressed the need for an HF mode capable of high penetration through adverse conditions, such as an ex…

American Radio Relay League | Ham Radio Association and Resources

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Five minutes of nice night propagation.

Summer here in Switzerland is at end, but jonospheric propagation continue to be very strong! Here you can see some minutes of this amazing situation. Work Conditions is Receiver: SDR Afedri , Antenna :Magnetic Loop ALA1530 indoor, Sw : SDR-Console + Multipsk . Best regards
Video Rating: 5 / 5

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IC-7600 AND HAM RADIO DELUXE WITH IC-7600 ,GOOD PROPAGATION ON 10 METERS.wmv

GREATE CONDITION ON 10 METERS…………..WITH MY ICOM IC-7600..

QSO PD1DTH VS IZ8PPH BPSK31 IC-7400 CG Antenna SB-2000 Ham Radio Deluxe 5 + Digital Master 780 03/03/2012. I’ve realized this video for my friend DF3JR

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