lecture

DARC Lecture And Lab Sep 2021

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Building an FM Radio

Geekcreit DIY Radio Kit – Sound Machine

Join the DARC for Lecture and Lab Sat Sep 25, 2021 from 11am until 2/3pm Central Time virtually via Google Meet. (The virtual meeting ID/Link is always on the W5FC event calendar) During this lecture and Lab, we’ll be building an DIY FM Radio – it is a complete kit with all the parts and a case – runs on 5 volts via USB cable. Participants can purchase a kit by coming out to the Dallas Medical Center parking lot Sep 18, 2021 between 10:30am – 11:30am central. Cost of the kit is $20.00 – KF5ZBL will be there passing out the kits – we have a total of 15 available.

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DARC Lecture and Lab August 2021

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These are the easy-to-build cores of the 1:1 balun and 1:49 transformer you’ll be assembling.

Join the DARC for Lecture and Lab August 28th, 2021 from 11am until 2 pm Central Time virtually via Google Meet. (The virtual meeting ID/Link is always on the W5FC event calendar) You will get to build two easy kits: a 1:1 choke balun and a 49:1 impedance transformer. Both will be enclosed in waterproof PVC enclosures and neither kit will require precision soldering. The balun will be constructed to hang below the center of your dipole, and the transformer will be set up for use at one end of an end-fed half-wave antenna. To pick up your kit, you will need to come to the front parking lot of the Dallas Medical Center on August 21st, 2021 from 10:30 – 11:30 to pick up your kit from the Dallas Medical Center parking lot from Tony, NT5TM.

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DARC Lecture And Lab May 2021

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Field Day Logging Options

QRUQSP Field Day Logger Site

Join the DARC for Lecture and Lab May 22, 2021 from 11am until 2/3pm Central Time virtually via Google Meet. (The virtual meeting ID/Link is always on the W5FC event calendar) During this lecture and Lab, we’ll be helping all participants learn how to use the free QRUQSP.org Field Day logger. This is an online logging system designed for Field Day and Winter Field Day and all you need is an internet connection and any device with a web browser with access to the https://qruqsp.org site.

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DARC Lecture And Lab April 2021

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DIY Custom Shack LED Lighting Controller

DIY WiFi LED Controller Kit

Join the DARC for Lecture and Lab April 24, 2021 from 11am until 2/3pm Central Time virtually via Google Meet. (The virtual meeting ID/Link is always on the W5FC event calendar) You will be assembling a 12 volt custom LED lighting controller for your HAM Shack based on the QuinLED board with a WiFi enable Wemos board programed with WLED. In this LnL you will solder and assemble a complete WiFi enabled LED controller – it even comes with a case and a length of LEDs. Like previous virtual LnL events, participants will need to come to the Dallas Medical Center Apr 17, 2021 from 10:30 – 11:30 to pick up their kits from the Dallas Medical Center parking lot from Bill KF5ZBL.

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DARC Lecture And Lab March 2021

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Anderson Power Pole Workshop

Anderson Power Pole

Join the DARC for Lecture and Lab March 27, 2021 from 11am until 2pm virtually via Google Meet. This will be an Anderson Power Pole Workshop – This Workshop will give you a complete overview of Anderson Power Poles and how they are used in HAM Radio. Participants will have a choice of five different Power Pole accessory kits to purchase and build. Like previous virtual LnL events, participants will need to come to the Dallas Medical Center March 20, 2021 from 10:30 – 11:30 to pick up their kits from the Dallas Medical Center parking lot from Bill KF5ZBL.

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Lab And Lecture May 2019

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Anderson Power Pole Workshop

Anderson Power Pole

Join the DARC for Lab and Lecture May 25, 2019 from 10am until 3pm at the Dallas Medical Center. This will be an Anderson Power Pole Workshop – This Workshop will give you a complete overview of Anderson Power Poles and how they are used in HAM Radio. Participants will have a choice of five different Power Pole accessories to purchase and build.

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Lecture and Lab Presentation 08-26-2018: Measuring Return Loss with the RTL-SDR

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return loss plot_cropSeveral club members and guests have asked if I can share my presentation…so here it is!

Some links you might find helpful include:

The scanning and comparison software that we installed and practiced using, RTLSDR-Scanner: https://eartoearoak.com/software/rtlsdr-scanner

The “runner up” software that can, sometimes, display spectrum graphs in real time, Spektrum: https://github.com/pavels/spektrum/releases (be sure to use version 1.2)

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Lecture and Lab 08-25-2018: What to Bring

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analyzer setup IMG_20180710_142419262This Saturday’s Lecture and Lab should be a fun one: we’re going to learn about different ways to turn our RTL-SDR USB dongles into antenna analyzers. Bring yourself and your curiosity. Bring $45.00! Bring your RTL-SDR dongle. Bring your favorite ideas about what to do with the RTL-SDR. We’ll have time to talk about them. Besides all those things, you should bring:

    1. A laptop computer. A Raspberry Pi might not have the horsepower, but if you’re stubborn, you can try.
    2. You’ll save time if you download and install the software we’ll be using. We’ll start by doing things the easy way, with the RTLSDR-Scanner. The installation is very easy for Windows, but a little more involved for Mac or Ubuntu. If you have a Windows or Linux laptop, you can also install version 1.2 of Spektrum, which we’ll discuss and experiment with.
    3. Bring your RTL-SDR Dongle! We will not have any for sale. If you’d like to support the club, your could order a dongle or a dongle with small dipoles through smile.amazon.com.
    4. A 12-14V power DC power supply for your noise source. It helps if it has a variety of barrel connectors so that you can be sure of having the right one. It can be very low power; only 0.2 amps are needed.
    5. Bring an antenna to measure. You can even bring more than one. (You can bring a lawn chair to analyze! Have Fun! —KE5ICX) We’re going to have plenty of time to measure antennas, experiment with the scanning software, and share our favorite tips and tricks for the RTL-SDR.