Tech Net News 03-07-2020

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This was seriously cool.

Check out the newest club newsletter to learn more about our next Lecture and Lab project—an electronic calculator kit able to do math in base 10 or base 16, and to decode resistor color bands. We’ll be building this kit on March 28th. Hope you can join us!

The contest calendar for the weekend shows some interesting events; there’s the ARRL DX Contest, phone weekend, as well as the Novice Rig Roundup where you need to listen well around the frequency where you’re transmitting—the other station might only be able to transmit on a single, crystal-controlled frequency. There’s also the John Rollins DX contest, for rigs designed before 1970, brought to us by the Antique Wireless Association.

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Tech Net News 02-29-2020

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“The Radio My Father Built” by Josh
Byer, received over HF radio from the Shortwave Radiogram

Our next club meeting will be this Tuesday, March 3rd. John Galvin, N5TIM, will speak about Winlink radio messaging, something that can be pretty challenging. I hope you’ll come on out to learn more.

The contest calendar shows a generous variety of events this weekend, including the North American QSO Party RTTY weekend, and QSO parties for both North and South Carolina.

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Local ARISS contact coming up tomorrow, 2/25/2020

Bill, N5BB reports:

Our Amateur Radio on the International Space Station contact is GO for Tue Feb 25 at approximately 11:34 – 11:44 CST local Texas time (17:34 UTC).

Celia Hays Elementary, Rockwall, Texas, direct via W5SO

The ISS callsign is presently scheduled to be NA1SS

The scheduled astronaut is Drew Morgan KI5AAA

Contact is go for: Tue 2020-02-25 17:35:18 UTC 31 deg

Watch for live stream at https://live.myvrspot.com/st?cid=NWM5N

Tech Net News 02-22-2020

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Did bees buzz 100 million years ago, or make a different sound? Credit: George Poinar Jr./ OSU.

That’s a lot of 2s today, isn’t it? There will be even more in a couple of years. Today was a really fun Lecture and Lab, and I hope hams who participated can share their experiences—and share any questions they still have—on tonight’s net.

Our next club meeting will be on Tuesday, March 3rd. John Galvin, N5TIM, will speak about Winlink radio messaging, something I’ve been struggling with lately. I hope you’ll come on out to learn more.

If you check the contest calendar for this weekend, you’ll see a very brief high-speed CW contest coming up on Sunday, and the CQ WW 160-meter SSB contest is in progress right now. Please note that logs are due within five days of the contest, and contacts not in the other station’s log result in a penalty. If you participate, please turn in a log. Speaking of which, if you participated in Winter Field Day, please remember that logs need to be turned in this month. Please do so, if you haven’t already.

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Tech Net News 02-15-2020

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Do your part—count me in! Credit: Peter Hart

I hope you’re at, or that you just attended, today’s Dallas County SKYWARN class. If you didn’t, you still have more chances…though they may be farther away.

 

The biggest club news this week is that our popular Lecture and Lab activity is starting back up after taking a break for the holidays. One week from today, on Feburary 22nd, 2020, we’ll be building an internet connected LED Marquee Scroller Clock based on a WeMos D1 Min and a LED matrix panel. It can be configured via WiFi to display/scroll news, local weather, and a lot more. The kit cost will be $10.00, and you should bring your soldering iron and tools, if you can. Don’t have a soldering iron? Don’t have experience? Don’t worry. Almost everyone who attends brings extra tools. Come on out to the Dallas Medical Center at about 10:00 am on the 22nd and have fun!

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Tech Net News 02-01-2020

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One Puffin coin issued by Martin Coles Harman I, King of Lundy, in 1929.

Our next club meeting presentation—this Tuesday—will be by Jim Eatman, KG5WAW.

What are “standing waves”? What causes them? Why is “high SWR” a problem? How do antennas affect SWR? And, what are the properties of various types of transmission lines (coax and ladder line)? Come find out and see a short standing wave demonstration using a NanoVNA.

Come to the meeting and learn more!

The K5RWK fox hunt may be back on this weekend, on 144.50 MHz…but I haven’t been able to confirm that.

The contest calendar for this weekend mentions several QSO parties, including the a 10-10 phone event,  and state parties for Vermont and Minnesota.

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Tech Net News 01-25-2020

1c7085_9394caeaaf2f4d5292d3f03fb469870amv2Are you having fun yet? Winter Field Day begins today! Participate with a club if you can, or at home if you prefer…but this is a great day to be on the air. The DARC is participating in the K5T special event station at Alford Media Services in Coppell, Texas. This is a one-day only operation; if you get the urge to join up with a club in the small hours of the morning, the Richardson Wireless Klub will be operating for the full 24 hours.

The only other contest I noticed this weekend is the CQ 160-Meter CW Contest. There’s no reason you can’t do both.

UPDATES: Tom, N5HYP, reports that some more technical information about the satellite with the battery problems can be found here. Larry, N5PQO, reports that you can find more information about the web SDR that lets you listen to the Qatari geosynchronous satellite at this site: https://eshail.batc.org.uk/nb/

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Tech Net News 01-18-2020

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Ancient Gondwanian feathers, courtesy of the Melbourne Museum

Winter Field Day is less than 7 days away! Sign up for your preferred operating time and be prepared to have fun. The DARC will be participating in the three-club special event station K5T on Saturday, January 25th, 2020.

Remember that there’s no Lecture and Lab this month due to Winter Field Day…and please don’t forget to pay your dues if they’re due.

There are a lot of small contests and operating events going on this weekend, and one big one: the North American QSO Party is taking place right now.

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Tech Net News 01-11-2020

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The yellow-breasted Togian jungle-flycatcher (Cyornis omissus omississimus) Credit: James Eaton/Birdtour Asia

Winter Field Day is fast approaching! Sign up for your preferred operating time and be prepared to have fun. The DARC will be participating in the three-club special event station K5T on Saturday, January 25th, 2020.

Remember that there’s no Lecture and Lab this month due to Winter Field Day…and remember that you might need to pay your dues.

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Tech Net News 01-04-2020

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Strain in a figure-8 knot, courtesy of Joseph Sandt.

The holiday season is now just a fond memory, and real life has returned. If you need a break, come on out to the next club meeting, this Tuesday, January 7th. We’ll hear a presentation from Dr. Tim Holzheimer, N6DIY, about HF amplifiers, and from our club leadership about our plans for Winter Field Day on January 25th. We’ll be participating in K5T, a multi-club special event station sponsored by the DARC, IARC, and MARS. The station will be in the same location as our previous Summer Field Day, Alford Media at 296 Freeport Pkwy, Coppell, TX 75019.

Don’t forget that the FT-8 2-meter Monday night nets are still going on at 7:30 local time on 144.174 USB. Give them a try if you can!

UPDATE: Bill, N5BB, reminded us that the Cowtown Hamfest is coming up on January 17th and 18th, 2020. The Irving Hamfest will be taking place on March 7th, 2020. Gus, W5GUS, let us know that the Garland Amateur Radio Club will host a 5-week Technician licensing class starting on Tuesday, February 18th, 2020. Also, the 2020 SKYWARN class schedule was posted today.

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