Speaking of ferrite RX loops... I picked up the July 2012 issue of Popular Communications from the local grocery store's magazine rack, just to see what the unusual antenna on the front cover was all about. It's called a "ferrite sleeve loop", and is made from a bunch of ferrite rods arranged into a cylinder with many turns of wire --connected to a variable capacitor-- wrapped around the center of it. You hold your little portable AM radio next to it to pick up signals from Uranus, supposedly. ;-)
A photo is at http://www.popular-communications.com/pc_current_issue.html(for now). And a video of this thingy is at bit.ly/Ifhpiy . Anybody ever see anything like this? What's the advantage (if any)? And can you imagine what all those ferrite rods cost?! 73, Mike www.w0btu.com _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK