Crystal Radio constructed with unusually large passive components with the goal of obtaining an extremely high Q. Variable capacitor from a B-17 Bomber’s antenna tuner and the final tank coil from a 50KW AM Broadcast transmitter once used by Chicago area WMAQ Radio’s Continental equipment are employed for outstanding performance.
NEWS RELEASES “Patent Infringement and Trade Secret Misappropriation Complaints Filed in U.S. District Court Motorola Solutions is Committed to Protecting its Valuable Intellectual Property Against Illegal Infringement and Copying ... Read more
Description A 3 element 144MHz LFA-Q (Super-rigid Quad-style) Super-Light Quad StyleYagi for 144-146MHz The LFA-Q Packs a bigger punch than a traditio... Read more
By Irv LeavittContact Reporter – Pioneer Press After hearing discouraging words from the Northbrook Village Board about his request to erect... Read more
What is DMR? Digital Mobile Radio (DMR) was developed by the European Telecommunications Standards Institute (ETSI) and is used worldwide by pr... Read more
During a January 12 Capitol Hill hearing, US House Subcommittee on Communications and Technology Chair Rep Greg Walden, W7EQI (R-OR), called the Amate... Read more
W1AW/5 The summer’s most popular HF contest — The 2015 International Amateur Radio Union (IARU) HF World Championship — gets under way on... Read more