[IRCA] Fw: SBE Meeting Reminder

["Mark Durenberger" <Mark4@xxxxxxxxxxxxxxx>]

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!
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