The Richardson Wireless Klub > RWK News > QRV Tech
QRV Tech
Chip Coker KD4C
February 17, 2026
In tonight’s edition of QRV, we’re going to look at the sometimes daunting task of programming your DMR (Digital Mobile Radio) ham radio. DMRs, once programmed, are very easy to use, but the initial hurdle of getting a radio going…
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Chip Coker KD4C
January 20, 2026
In tonight’s edition of QRV, we’re going to look at Automatic Dependent Surveillance – Broadcast, the technology that allows airplanes to automatically communicate their position to ground stations and other planes. We’ll talk briefly about the history of ADS-B, how…
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Chip Coker KD4C
December 15, 2025
Tomorrow night, our very own Don Weeks (N5SKT) will be talking about FreeDV and running a demonstration on how it works. He will be discussing the basics of its operation, the different modes (and which ones are best suited to…
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Chip Coker KD4C
November 18, 2025
Solar weather events—such as solar flares, coronal mass ejections, and geomagnetic storms—significantly influence HF radio propagation by altering Earth’s ionosphere, often affecting signal reach and reliability for amateur radio operators. Recent activity allowed the northern lights to become visible as…
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Chip Coker KD4C
October 21, 2025
This month’s QRV presentation will be hosted by Joe Jaison from the University of Ottawa’s Rocketry team. Joe will explain how they use radio in rocketry for telemetry using a mix of commercial and designed technologies. He will additionally talk…
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Chip Coker KD4C
September 16, 2025
One of the biggest complaints about the popular FT-8/FT-4 digital modes is that the exchange is short and fixed, and there’s no way to add to the QSO. What if I told you that there was a mode that used…
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Chip Coker KD4C
August 18, 2025
During tomorrow night’s QRV session, we will learn about NOAA’s GOES (Geostationary Operational Environmental Satellite) satellite system and how you can decode its transmissions for yourself. We will talk about what GOES is, how the data is channelized and transmitted,…
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Chip Coker KD4C
June 17, 2025
We’re moving QRV Tech for this month to next week! Please join RWK on Tuesday June 24th for this month’s QRV Tech. Coming up at the end of June is Field Day 2025. Field Day is amateur radio’s biggest event…
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Chip Coker KD4C
May 20, 2025
We’re taking advantage of the launch delay of our High-Altitude Balloon (now planned for May 31st) to again go over what’s on the balloon and how you can participate, either in person or from your shack. We look forward to…
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Chip Coker KD4C
April 20, 2025
Larry KI5UXC is going to talk about (and possibly demonstrate) the benefits of adding some power to your signal by using a linear amplifier. While there have been some advances in linear amplifiers recently (especially in solid state amplifiers), using…
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