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LinkedIn Hi Jeffrey, Your LinkedIn password has been reset successfully. Thank you, The LinkedIn Team This email was intended for Jeffrey Pawlan. Learn why we included this. © 2012, LinkedIn Corporation. 2029 Stierlin Ct. Mountain View, CA 94043, USA Friday, January 27, 2012 Heads-up Display Proposal for GNU Radio (and MEP) Sunday, August 28, 2011 Six-Ports Paper appearing in The Proceedings of Microwave Update 2011. It's about the basics of six-port theory, with an explanation of six-ports as modulator and demodulator. Saturday, August 27, 2011 Six-port article for MUD Greetings all! This October, a six-port paper will be included in the Proceedings of Microwave Update 2011. If you read the old six-port paper, this is a major revision and expansion.  http://www.delmarnorth.com/microwave/newsletters/sixportmodel.pdf Next step: building six-ports with the recently received couplers and dividers, at 1.2GHz in order to experiment with local amateur DTV.  https://plus.google.com/114254220048556407553/posts/MVTkLTbNuXB I'm hoping that experiments at 1.2GHz will produce enough know-how to make a reliable recipe, and then that recipe can be used at 3 and 5 GHz. I'll be out of town until September 7th. My three children will be back in school on Monday, and I'll begin to have a lot more time to help out on MEP and related experiments. Summer is a bit more challenging in terms of having uninterrupted time. This list is intended to support and encourage amateur microwave engineering projects, so please speak up with ideas, comments, critiques, proposals and plans.  Looking forward to the fall,  -Michelle W5NYV Sit vis vobiscum! Monday, August 8, 2011 Qt4 built, building a GUI for SDRs After reinstalling Xcode, Qt4 installed from the repository. This is the recommended way to build GUIs for MEP. Thanks to Jacob for highlighting Qt4 and recommending a book. If you're interested in building the GUI, then install Qt and speak up!  :+) Tom Rondeau had some very nice things to say about a model-view-controller architecture-for-SDR letter I wrote him and fred harris a couple months back. The response got me thinking about exactly how one would want to partition tasks for an SDR, and how those partitions could improve the user experience and user interface. Model-view-controller type software writing can be very user (and user-interface) focused. What I'd like to look at is how to best write a GUI for SDR. While the application is MEP, I'm looking for generalizations that will be useful to others. What do you all think? -Michelle W5NYV Friday, July 22, 2011 Numbering Scheme, looking for hybrid couplers and dividers, and MUD? Hi everyone!  Here's a document about the numbering scheme in the IQ Gain and Phase Correction Filter.  I bought the first set of parts for experimenting with six-port structures. Two 90 degree hybrid couplers off eBay. The target application is DVB amateur television. There's a repeater near me for DVB ATV. The frequency of interest for this experiment is 1.2GHz. If you have any 90 degree hybrid couplers or power dividers for this frequency, and are willing to donate them to the cause, let me know! I'm looking for at least 4 more couplers and 2 dividers (0 degree phase, equal power dividers).  Does anyone have any plans to attend Microwave Update in Connecticut this year?    -Michelle W5NYV Thursday, June 2, 2011 FPGAs in space Article from EE Times about FPGAs in a cubesat project. http://www.eetimes.com/design/military-aerospace-design/4216480/High-performance-FPGAs-take-flight-in-microsatellites?cid=NL_ProgrammableLogic&Ecosystem=programmable-logic  -Michelle W5NYV Potestatem obscuri lateris nescis. Subscribe to: Posts (Atom)