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Author Archives: jeff dahn

Scheduled Presentation for June 14, 2017 / 7:30 PM: Software Defined Radio and the DARPA Hackfest

—THIS EVENT IS FREE AND OPEN TO THE PUBLIC TO ATTEND—  The HacDC Amateur Radio Club is honored to have one of the former lead developers of the GNU Radio project in to speak with us about the exciting field of Software Defined Radio and the upcoming DARPA Bay Area Hackfest! Our guest speaker, Dr. Tom … Continue reading »

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HacDC ARC Again in Partnership with National Park Service Through Use of Amateur Radio at Public Event – May 19, 2017

Fort Hunt Day Flyer The HacDC ARC is very pleased and honored to announce that we will again be in partnership with the National Park Service through use of amateur radio technology at a public service event. The George Washington Memorial Parkway Section will be hosting the, “History and Heritage Day at Fort Hunt Park” … Continue reading »

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***POSTPONED DUE TO WEATHER / SPECIAL EVENT FOR MAY 6, 2017 / 1400 HRS (1800 HRS UTC)***

The Special Event and Presentation scheduled for today, Saturday, May 6, 2017 starting at 1400 HRS (1800 HRS UTC) at Rock Creek Park, featuring Stuart Thomas, KB1HQS, has been postponed due to rain local to the event that appears will not clear on time for needed advance set-up. A rain-date will be established and published … Continue reading »

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MAY 10, 2017 / 7:30 PM MEETING MOVED FOR SPECIAL EVENT ON MAY 6, 2017

In lieu of the normal “second Wednesday of the month” club meeting scheduled for May 10, 2017 at 7:30 PM, we will be having a SPECIAL EVENT PRESENTATION occurring on Saturday, May 6, 2017 at 2:00 PM in Rock Creek Park. Stuart Thomas / KB1HQS will be our very special guest. During the 2016 ARRL … Continue reading »

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Coming to the DC Area? Suggested Frequency Listing

If you happen to be traveling to the DC area for any reason, we are providing the attached frequency list as a courtesy reference for hams who may be frequenting the popular tourist area of the National Mall and want to know what frequencies work in the area. Our own club’s repeater (W3HAC) has only, … Continue reading »

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Meeting Presentation Announcement – April 12, 2017 at 7:30 pm

Some of our members recently purchased a solar powered, Arduino programmable, weather station kit from Karl, W4KRL at the Winterfest in Annandale, VA. Due to popularity of this kit, I invited Karl to come to our next club meeting to give a presentation all about it’s development, how the station works, etc. Karl has graciously … Continue reading »

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Grabbin’ the Tiger by the Tail…

Many thanks to Arthur Feller – W4ART, who led our first successful group build on the evening of March 22, 2017, of “Tiger Tails”, an antenna accessory to an HT transceiver that greatly improves transmit and receive performance. This is the first of what are planned to be several “practical application” events. In these events, … Continue reading »

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W3HAC and Members Heavily Involved in Inaugural Events in Washington, DC

The ARRL today published a story on their news page about the efforts of W3HAC members during the events of the Inauguration and the Women’s March on Washington. A link to the story can be found here: http://www.arrl.org/news/npota-participation-leads-to-inaugural-communication-detail-for-national-park-

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W3HAC Club Members Finish NPOTA Initiative With Rare Activation

On 12-31-16, several members of the HacDC ARC activated the highly sought after “Sewell-Belmont House” in Washington, DC to finish off the ARRL’s year long “National Parks on the Air” (NPOTA) initiative. This initiative was run in tandem with the Centennial celebration of the National Park Service. By encouraging use of amateur radio operations from … Continue reading »

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[W3HAC] 10/15 Spaceblimp Launch at 09:00 EDT

Hello friends of HacDC and HARC. We are finally launching our first high altitude balloon in several years with callsigns W3HAC-11 & W3HAC-12 on ARPS 144.390@500mW and 433.500@1W respectively at 9am. W3HAC-12’s frequency may change the day of due to conditions which we will announce. There should be a digipeater on W3HAC-12 for the duration … Continue reading »

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