Posts

3 Easy Multi-Band HF Antennas You Can Build

Image
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=SGctGaY0Cbk This is post 2510 in a continuing series of simple ham radio antennas. In this video, "DX Commander" Callum (M0MCX) shows us how to convert loops, dipoles, and verticals into multi-band antennas. A well-done, easily understandable tutorial. Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).  

HT RX/TX Performance Upgrade

Image
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=4kff8dP1OOk This is post 2509 in a continuing series of simple ham radio antennas. Are you looking for a way to improve the range and performance of your 2m/70cm hand-held HT? Then this video from Sebastian (KF5OBS) may be what you need. The solution to the poor performance of the stock "rubber duck" antenna is simple:  just add a "tiger tail" or counterpoise wire to the base of the HT antenna. Here are some comments from Sebastian: This video is showing how to significantly improve the receive and transmit performance of any handheld radio using what's called a Tiger Tail or Rat Tail. This modification is simple, easy, and cheap. ----- Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).  

Portable Ham Radio Field Antennas

Image
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=0EkFR6BsQ7w This is post 2508 in a continuing series of simple ham radio antennas. Thanks to Josh Nass (KI6NZ) for this in-depth discussion of portable Ham Radio field antennas. Josh does an excellent job of joining antenna theory with the practical demands of "field operations." This video was part of a presentation given to members of The Crecenta Valley Radio Club. Here's some additional information from Josh: The following presentation was given to the Crescenta Valley Radio Club on portable ham radio antennas. Monthly newsletter, stickers, private content: https://www.patreon.com/hoshnasi ​ Links to products in the video: https://www.amazon.com/shop/hamradioc... ​ As an Amazon Associate I earn from qualifying purchases. Current Shack Config: ICOM 7300: https://amzn.to/2sVdpOq ​ ICOM 2730a: https://amzn.to/2JqrASg ​ MFJ-4230DMP: http://www.

Magnetic Loop Experiments, Observations, and Results

Image
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=jEO9JSRXeZI This is post 2507 in a continuing series of simple ham radio antennas. Magnetic loop antennas can offer some interesting possibilities for radio amateurs living in deed-restricted properties (HOAs and CC&Rs). As Kevin Loughin (KB9RLW) points out, not every loop antenna project works as built.   In this video, Kevin recalls some of his successes and failures in the loop antenna category.  Kevin says each project, be it a success or not, provides valuable data for future antenna designs. Here are some of Kevin's observations and results: I spent yesterday building and experimenting with magnetic loops. Here's what I learned. If you like my videos, please subscribe here: http://www.youtube.com/user/loughkb?s... ​ If you want me to keep making more videos like this, consider becoming my patron at Patreon: http://www.patreon.com/kb9rlw/ ​ Di

70 cm Satellite Antenna-cheap and easy

Image
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=nEy7jNu8wMc This is post 2506 in a continuing series of simple ham radio antennas. How would you like to build a sensitive, effective 70 cm Satellite Antenna at minimum cost? You can build this antenna based on a design from Richard F. Crow (N2SPI) in just a few hours using many common materials around your home. A producer for "Branvini Films" explains just how easy it is to make a cheap, effective UHF Satellite Antenna: Here is Richard F. Crow, N2SPI's "Cheap Yagi for 70cm" from his 2006 article entitled, "Build this Cheap and Easy Satellite Downlink Antenna" on Amsat.org. I built this in one evening after dinner, and did a time lapse so you could see how easy this project reall is to build. Total cost is about $30. It's beam is made of foam poster-board and the elements are #8 AWG wire, and a radio connector. Here are

How to Build a 9:1 UnUn for Ham Radio

Image
If you can't see the video, please insert this title URL into your browser searchbox: https://www.youtube.com/watch?v=mfnvqQeDLoQ If you use an end-fed "long" wire antenna for your HF operations, then you'll find this simple antenna accessory a most needed addition to your antenna system. According to "Tinker John" (W5CYF), this basic 9:1 UnUn is easy to make, inexpensive, and will take only a few hours to build. Here are some of John's comments: Simple and inexpensive to build the 9:1 end fed long wire antenna is a good antenna for both portable and home use. This antenna, like all antennas, has it advantages and disadvantage. You’ll see some of both in this how to video. Amazon Link for other suggested items that may be related to this video: https://www.amazon.com/shop/w5cyftink... ​ Royalty Free music courtesy of YouTube Creative Tools – Sioux Falls by Silent Partne ----- Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).  

Quick and dirty 50 MHz halfwave wire vertical antenna

Image
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=4_QpIpW8dR0 This is post 2504 in a continuing series of simple ham radio antennas. Thanks to Australian radio amatuer Peter Parker (VK3YE) for this simple, effective halfwave vertical antenna for 6 meters. Exploring the "Magic Band" with basic antennas can be a lot of fun.  The cost is moderate and materials are readily available for the antenna experimenter. Here are some of Peter's observations: Don't have an antenna for 50 MHz? Many people don't. Here's a quick half wavelength vertical that will get you on 50 MHz in no time. All you need is 3 m of wire (for the element), a support pole, a variable capacitor that goes up to about 60 pF (a lesser maximum like 20 pF would also be OK), a short section of 9mm dowelling and some extra wire for the coil and radial. I tested it on WSPR with VK3II 50km away as receiving. I was a similar stre