-### Upcoming Meetings
+#Upcoming Meetings
-**Thursday, August 11, 7:30 PM** The August meeting is CANCELLED on consultation with AMRAD Chief Greening Officer André Kesteloot, N4ICK, as our contribution to saving the planet.
+**Thursday, June 13, 7:30 PM, <a href="http://www.fairfaxcounty.gov/library/branches/dm/">Dolley Madison Library, McLean, VA.</a>
+AMRAD hosts a doubleheader for slow modes: DFCW and JT65.**
-**Thursday, September 8, 7:30 PM** DOLLEY MADISON LIBRARY, McLEAN. VA. George Heron, N2APB, of Midnight Design Solutions will present his SDR Cube Tranceiver. and talk on Software Defined Radios in general. George's website is www.sdr-cube.com.
-
-**Thursday, October 13, 7:30 PM** DOLLEY MADISON LIBRARY McLEAN, VA. Dr. Michael King, an experienced high-performance HF receiver designer, will talk on hardware design for Software Defined Radio systems that hams can build.
-
-Please note new location for the September and October meetings: Dolley Madison Library, McLean, VA. 1244 Oak Ridge Avenue, McLean, VA.
+The first presentation will be by **André N4ICK** titled **<i>An Arduino-based DFCW Beacon for the 479 KHz Band.</i>** André will discuss Dual Frequency CW (DFCW) and will update us on the ARRL petition to the FCC Office of Engineering and Technology regarding the new band. He will demonstrate his design of an Arduino-based 479kHz beacon, and will expand on the eventual possibility of "crossing the Pond" to communicate with British Hams who have been experimenting for a while with this new allocation.
+
+Dual Frequency CW, or DFCW, is a technique where a CW signal is transmitted at a very slow symbol rate, typically at speeds from 1 to 80 seconds per dot. This allows reception in very narrow bandwidths.
+
+**Terry McCarty, WA5NTI,** will make a presentation on **<i>The JT65 Weak Signal Digital Soundcard Mode.</i>** JT65 can decode signals many decibels below the noise floor making an exception to the old rule “if you can’t hear them, you can’t work them.” Terry has racked up an impressive list of contacts on nearly every band. The mode was developed by Joe Taylor, K1JT as an offshoot to his WSJT weak signal mode widely used in moonbounce contacts. Although JT65 was originally intended for troposcatter and Earth-Moon-Earth paths, Terry is one of the pioneers in using it for low power HF contacts. Terry will tell us where to get the free software, how to configure it, and what you can expect in a contact.
+
+<img src="DFCW_Arduino-based_beacon_for_479kHz.jpg" height="300" width="400">
+
+Arduino-based beacon for 479kHz by André, N4ICK
+
+#Recent Meetings
+May 9, Karl Berger, W4KRL, shared his adventure exploring the possibilities for using the Arduino microcontroller in amateur radio projects. Karl set out a few months ago to make a stand-alone touch screen display for a portable antenna analyzer. He broadened his objective to include a flexible graphic display system that a ham can adapt to station control, test instruments and data logging. Along the way, he overcame challenges in converting his program from “in line” coding to the “object oriented” style and solving unexpected problems with hardware control.
+
+April 11, Ron Payne, WA6YOU, demonstrated how to build UHF Yagi antennas for receiving off-air DTV stations, or, for any UHF band application. Ron demonstrated his method of building antennas using spun copper wire for the antenna elements and how to get great results with low cost construction.
-### Recent Meetings
+#Upcoming Events
-**Thursday, July 14** This meeting was a preparation for our Manassas special event of 21-24 July jointly with the Ole Virginia Hams. See Upcoming Events, below.
+**June 9, Manassas Hamfest** Prince William County Fairgrounds, Manassas, VA
+<a href="http://manassashamfest.org/"> http://manassashamfest.org</a> Ole Virginia Hams Amateur Radio Club.
-**Thursday, June 9** Chris Paton, W3CUM talked about Skywarn. See a recap of his talk in the July-August AMRAD Newsletter.
+**July 7, Maryland Hamfest and Computer Fest**, West Friendship, MD, <a href="http://bratsatv.org/hamfest/"> http://bratsatv.org/hamfest/</a>
-### Upcoming Events
+**August 4, Berryville Hamfest** Berryville, VA, <a href="http://w4krc.org/hamfest"> http://w4krc.org/hamfest,</a> Shenandoah Valley Amateur Radio Club.
-**August 7,** Berryville Hamfest, Berryville, VA [svarc.us](http://svarc.us/hamfest/)
+**August 8, Carroll County Tailgate Fest**, Westminster, MD, <a href="http://www.qis.net/~k3pzn"> http://www.qis.net/~k3pzn</a>
-**September 16-18,** ARRL/TAPR Digital Communications Conference, Baltimore, MD, [tapr.org](http://tapr.org/)
+**September 6, Maryland State Convention (CARAFest)**, West Friendship, MD, <a href="http://carafest.org"> http://carafest.org</a>
-**September 17** ARRL Roanoke Division Convention, Virginia Beach, Virginia (http://www.arrl.org/hamfests/roanoke-division-convention-virginia-beach-hamfest)
+**October 27, Mason-Dixon Hamfest**, Westminster, MD, <a href="http://www.qis.net/~k3pzn">http://www.qis.net/~k3pzn</a>
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projects / amrad.git / blobdiff