Posts

Time Zone Converter (Extended Edition). Post #748.

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If you're having trouble viewing this video, please insert this title link into your browser search box: https://youtu.be/HDFzizs DCcU. Here's a handy tool you can use in your ham shack to better schedule your DX and net contacts.  I've used this simple guide to set some of the clocks used in my radio room.  A useful gadget.  For the latest Amateur Radio news and events, please check out the blog sidebars.  These news feeds are updated daily.  Thanks for joining us today! Aloha es 73 de Russ (KH6JRM).

Homemade dummy load. Post #747.

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If you're having trouble viewing this video, please insert this title link into your browser search box: https://youtu.be/Yx5F1jUFySM.  Here's a simple project that you can assemble in your spare time that will help you adjust your transceiver without going on the air and creating needless interference.  A dummy load is a basic piece of equipment that every radio amateur should have in his/her shack.  Although you can buy commercial models, it's more fun and educational to "roll your own."  In this video, "the250rider" shows us how common items around your home and shack can be converted into a practical and cheap dummy load.  The resistor network consists of 8, 100 ohm-1/2 watt 5% tolerance resistors run in a series/parallel circuit.  You can keep the resistor network cool by immersing it in a jar of vegetable oil.  According to "the250rider", this homebrewed dummy load has a measured impedance of 49.8 ohms, close enough for casual use with

Simple Ham Radio Antennas--Homebrew 10/20/40m EFHW vertical Antenna "SOTA"

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If you're having trouble viewing this video, please insert this title link into your browser search box: https://youtu.be/29CA_IPyg9M.  Here's a nice, compact and simple end-fed-halfwave vertical antenna suitable for both home and portable use.  2E0VOV does an excellent job of describing both the theory, design, and operation of this antenna, which is based on the "Par Endfedz" multiband QRP antenna.  The UNUN uses a Ft-140-43 core and is fairly simple to build.  the coaxial feed line acts as a counterpoise, so no ground radial system is needed. While this antenna is a compromise, it does an acceptable job on 10/20/40 meters.  For the latest Amateur Radio news and events, please check out the blog sidebars.  These news feeds are updated daily.  Thanks for joining us today! Aloha es 73 de Russ (KH6JRM).  This is post #746 of a continuing series on Amateur Radio antennas.

Simple Ham Radio Antennas--DELTA Loop. Post #745.

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If you're having trouble viewing this video, please insert this title link into your browser search box: https://youtu.be/OD9CU4c_KNY.  The Delta Loop is a simple, easy-to-build, inexpensive, and efficient antenna that is excellent for both receiving and transmitting.  In this video from Simon (M0YKS/2E0HTS), we learn just how easy it is to design, build, and use this full-wavelength antenna.  In this tutorial, Simon builds the antenna for the 20 meter amateur radio band. With an antenna transmatch (i.e. tuner or ATU) and a 1:1 balun, this antenna works fairly well on 17 meters, 15 meters, 12 meters, and even 10 meters. You get 5 bands for the price of 1.  For the latest Amateur Radio news and events, please check out the blog sidebars.  These news feeds are updated daily.  Thanks for joining us today!  Aloha es 73 de Russ (KH6JRM).

Simple Ham Radio Antennas--Beverage Antennas. Post #744.

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If you're having trouble viewing this video, please insert this title link into your browser search box: https://youtu.be/uriOszFe8i0. An exceptionally well-done video by Ms. Valerie Hotzfeld on the historical background, construction practices, and varieties of Beverage Antennas available to radio amateurs.  Her description of the antenna's inventor, Harold H. Beverage, is particularly good. This antenna is worth considering if you are serious about working the 160 meter band ("Top Band").  As a receiving antenna, the Beverage can't be beat.  Of course, this type of traveling wave antenna requires a lot of space and it's not for everyone.  But once you've used a Beverage Antenna, you won't try any other type of receiving antenna for 160 meters.  I have one installed on my vacation home in the Puna District of Hawaii Island and I find it's a super performer on the MW standard broadcast band as well as on "Top Band." For the latest Amate

Simple Ham Radio Antennas--HAM RADIO BACKYARD SETUP FIELD DAY. Post #743.

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If you're having trouble viewing this video, please insert this title link into your browser search box: https://youtu.be/2Mgd06UAHbU.  The ARRL Field Day is coming on the last full weekend of June.  Field Day is an ARRL-sponsored event in which radio amateurs and their clubs set up outdoors to demonstrate the hobby to the public, as well as their capabilities to operate in an emergency.  If you can't join an Amateur Radio Club this year for Field Day, why not run solo at your home or nearby park as a category 1D (commercial mains) or a category 1E (emergency power) station?  I've done this several times and had a good time being in the outdoors.  In this video by "dirtbike5100", we see how simple it is to organize, set up, and operate a portable station for a Field Day event.  The important thing is to have some fun and to test your capabilities to run your amateur radio station under field conditions.  For the latest Amateur Radio news and events, please chec

Simple Ham Radio Antennas--Inverted L for 160 meters. Post #742.

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If you're having trouble viewing this video, please enter this title link in your browser search box: https://youtu.be/ddbrweVlhCE. In this video, Stan Gibilisco (W1 GV) shows us how to design an inverted L for 160 meters that will fit in a typical house lot.  Good, basic theory is combined with helpful design and operational tips to create an inexpensive and effective quarter-wave antenna for "Top Band." Don't forget to include a good radial or counterpoise system for this antenna.  For the latest Amateur Radio news and events, please check out the blog sidebars.  These news feeds are updated daily.  Thanks for joining us today! Aloha es 73 de Russ (KH6JRM).