FYI From: Michael Simonds Sent: Friday, March 14, 2014 11:15 AM To: Michael Simonds Subject: SBE Meeting Reminder
Hello everyone, A reminder of our meeting next Tuesday, March 18th at the Pavek. Lunch will be on your own. Read on for next week's program as well as a potential opportunity for SBE members to get better insurance rates! See you then! Next Tuesday’s SBE Meeting veers away from mainstream broadcast engineering to look into a different world of ‘engineering’ endeavor: The interest, experiments, science and empirical observation gathered and displayed by a hardy band of amateurs called “DX-ers.” These folks take great pride in scanning the RF spectrum from ‘almost-DC’ to ‘almost-light,’ looking to copy and verify radio emissions from around and from off the planet. Mark Durenberger, renouncing his formative years as a child of FM, takes us into the world of AM DX-ing, to update you on a hobby that’s undergoing a renewal of interest. There are several reasons for this fresh attention; primary among them are the availability of new DSP tools and a better understanding of antenna theory (yes, even EZNEC)! What’s coming out of these activities are ways to better explain the fundamentals of radio reception, and a sharing of the methodology used to finesse what once was impossible...the capture of a 1-watt signal 1300 miles away...or the nulling of nearby 50-kilowatt pests to discover a distant station lurking under that modulation envelope. This fast-paced hour or so refreshes our understanding of some engineering principles related to AM reception...from Long-Wave through the Tropical Bands. We’ll keep you awake! _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected]
