NJDTechnologies

Radio: it's not just a hobby, it's a way of life

Current Operating Frequency and Mode

OFF AIR for storms

472 GRABBER OFF LINE UNTIL MIDWEEK

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CQ – Amateur Radio – MF/LF Operating: the world below 500 kHz – Additional reference links and bonus content

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July, 2017 footnotes http://www.antennasbyn6lf.com/2017/02/lf-mf-antenna-notes.html http://w5jgv.com/insulators/insulators.htm http://njdtechnologies.net/wp-content/uploads/2017/04/Bill-Ashlock-loops-CQ-July-2017.pdf http://www.w1tag.com/XESANT Bonus content for July, 2017   April, 2017 footnotes http://njdtechnologies.net/the-ins-and-outs-of-filing-an-application-for-a-part-5-experimental-license-on-630-meters/ http://www.qsl.net/d/dl4yhf/wolf/wolf_info.html http://abelian.org/ebnaut/ http://ve7sl.blogspot.ca/2015/01/the-low-noise-vertical.html https://wg2xka.wordpress.com/an-receive-only-vertical/ https://www.dropbox.com/s/mqwpxobqv8gmlak/no3m.pdf?dl=0 http://njdtechnologies.net/the-daytime-surprises-on-630-meters-continue/ http://njdtechnologies.net/091516/ http://njdtechnologies.net/wp-content/uploads/2017/01/VO1NA-CW-PARDT-012417.mp3   Bonus content for April, 2017 W1VD's enlarged K9AY loop with vactrol termination and balanced feedline:  http://w1vd.com/k9ay11.pdf Both receiver and transmitter stability are important when running the very slow visual [...]

VI4SEA Special Event station QRV November 1 – 9!

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UPDATED: November 2, 2016: There is a great deal of interest in the VI4SEA 2200m operation. Thanks to all who had a listen. The first night of operation was hampered by very heavy QRN. Also the time was too early for stations in Victoria and Tasmania, where sunset was not complete. The operation is being [...]

Average propagation and band conditions but more QRN than the lightning map represents; Quiet geomagnetic conditions return; DK7FC -> WE2XGR/3; WH2XCR -> ZF1EJ; WG2XSV JT9 at VE6JY; Good trans-Pacific openings to Oceania and Asia

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    NOTES FOR THE PEANUT GALLERY: you have to have PDF.js loaded to view.  If you have a PDF viewer loaded on your machine, you should be just fine. This was a simple copy and paste of today's content - there is minimal formatting -  I used some carriage returns to space things out.  [...]

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PARDON OUR MESS! We are making some improvements to the website to help with the organization of the contents of the 630-meter category.  We will be splitting the content into logical groups to make searching for a post easier. All of the previous content is still currently available.  Simply click the main 630-meter button on [...]