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Presentation for August 9, 2017 Meeting at 7:30 PM / HF Digital Modes by Andrew Beard / AB3U

On Wednesday, August 9, 2017 at 7:30 PM, Andrew Beard, AB3U, will be bringing in his KX2 and giving us a live presentation of various HF digital modes. He will demonstrate how transmissions appear “on the waterfall”, how they sound and display the timing of the exchanges between various popular HF modes.

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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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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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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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Measuring SWR with RTL Dongle Ethan Waldo KF5UFH – July 8th @ 7:30pm

In lieu of a speaker this week, we’re going to keep it short so people can have more time to chat and hang out. Ethan Waldo KF5UFH will be demonstrating Standing Wave Ratio (SWR) measurement using a cheap RTL SDR dongle, directional coupler, and noise generator as outlined in this article. Antennas can be measured … Continue reading »

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Space Weather & Ionospheric Radio Propogation

Here is the video from Dr. Chua’s 12/10/14 presentation at HacDC. Dr. Damien Chua works at the Naval Research Laboratory and presents a survey of ionospheric variability and its effects on RF Communications.  He first reviews the process of radio wave propagation and reflection in the ionosphere.  He then examines how the ionosphere varies spatially and … Continue reading »

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WordPress for Hams

Here is a PDF of the slides to my presentation on WordPress for Hams. WordPress  

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