Simple Ham Radio Antennas

. Excellent antenna tutorial. The video is part of a series covering electromagnetics given to electrical engineering students at Bucknell University . The video is clear, well-organized, and thoroughly understandable. This video would make an excellent self-study assignment for those preparing for Amateur Radio License examinations. You could also download a copy of this video for your own antenna reference library . All of us get a little "fuzzy" on antenna theory as time marches on, and this video will serve to reaquaint you with some of the antenna basics needed to enjoy Amateur Radio. For the latest in Amateur Radio news and events, please check out the blog sidebars. These news feeds are updated daily. You can follow our blog community with a free email subscription or by tapping into the blog RSS feed . For a more detailed look at Amateur Radio News, please check out my Amateur Radio News Blog--http://kh6jrm.net. Thanks for joining me today! Aloha es

How About a New 12 Volt Automotive Connector? - The K0NR Radio Site : How About a New 12 Volt Automotive Connector? Posted on 2 December 2014 by K0NR — 3 Comments ↓ Standard power connections are a great thing. A while back, I wrote about how the micro-USB connector became the standard power/data connector for mobile phones. (Well, that is unless you own an iPhone .) The good news is that we do have a standard power connector for 12 VDC in automobiles. The bad news is that it is an ugly behemoth derived from — can you believe it? — a cigarette lighter . For some background and history, see the Wikipedia article.The Society of Automotive Engineers (SAE) even has a standard that describes this power connector (SAE J563). Alan K0BG correctly warns us to “never, ever use existing vehicle wiring to power any amateur radio gear” including the 12 volt accessory plug. (I always follow this advice, except in the cases when I don’t.) I also found this piece by Bill W8LV on eham.net that

This antenna tutorial from David Casler is one of the better explanations of antenna theory on the internet. David made this video to prepare potential ham operators for the General License Class FCC test. His graphics and presentation are first-rate. This video should be part of your Amateur Radio library. For more information, visit http://ke0og.net/general. For the latest Amateur Radio news and events, please check out the blog sidebars. These news feeds are updated daily. You can follow our blog community with a free email subscription or by tapping into the blog RSS feed. Thanks for joining us today! Aloha es 73 de Russ (KH6JRM).

The MFJ-1622 is a close copy of an apartment antenna originally marketed by Barker & Williamson (B & K). I bought one of these after I was first licensed as a novice operator (circa 1977). Like the author, "North Carolina Prepper", I replaced some components after a short period of use and found the antenna performed well as small, based-loaded vertical. An angled mounting bracket enables you to stick the antenna from an apartement window or balcony. To cut losses, replace the original coaxial cable with RG-8 or RG-8X and add a separate "counterpoise" wire for each band. The counterpoise wire can be spread around your apartment or along the ground if you're running your rig from a public park or beach. Performance will be enhanced if you add several radials or "counterpoise wires" for each band of use. This video can help you increase performance of this simple, fairly inexpensive apartment antenna. This antenna is inconspicuous, easy to

The Long Road to Maxwell’s Equations Source: http://spectrum.ieee.org/telecom/wireless/the-long-road-to-maxwells-equations. Comment: A fascinating article on the life and times of James Clerk Maxwell, who developed the first unified theory of physics and who showed that "electricity and magnetism are intimately connected." The article also discusses the work of his contemporaries (Lodge, Heavyside, and Hertz) and how they used some of Maxwell's ideas to formulate their own theories of electromagnetism. Shortly before he died in 1879, Maxwell encapsulated his ideas into four equations which formed the basis of modern-day communications. The contributions of James Clerk Maxwell make him, in my humble opinion, one of the giants of radio. He belongs on the same podium as Tesla, Marconi, and Popov. For the latest in Amateur Radio news and events, please check out the blog sidebars. These news feeds are updated daily. You can follow our blog community with a free ema

Excellent idea for a stealth antenna for those of us operating under burdensome HOA rules and CC&Rs. Just make sure the gutter is bonded together with pop rivets or screws to maintain integrity and electrical conductivity. I've built several versions of this antenna for various bands, all fed with fairly cheap RG-6 coaxial cable available as "end of reel" pieces from cable company installers. This 75-ohm coax is also available from the TV or cable accessories department of Walmart. My old Drake MN-4 antenna transmatch ("tuner") handled the slight mismatch between the cable impedance and the nominal 50-ohm impedance of my trusty Ten-Tec Argosy II. I also attached "counterpoise" wires (one for each band of use) to the ground lug of the Drake MN-4. This antenna is simple and it works. For the latest Amateur Radio news and events, please check out the blog sidebars. These news feeds are updated daily. You can follow our blog community with a f

- How will the 5G network change the world? - via Eagle Averro - Newsvine : 1 December 2014 How will the 5G network change the world? By Ed Ram BBC News The global race is on to develop 5G, the fifth generation of mobile network. While 5G will follow in the footsteps of 4G and 3G, this time scientists are more excited. They say 5G will be different - very different. If you're thinking, "Great, that's the end of my apps stalling, video faltering, and that everlasting load sign," then you are right - but that's only part of the story. "5G will be a dramatic overhaul and harmonisation of the radio spectrum," says Prof Rahim Tafazolli who is the lead at the UK's multimillion-pound government-funded 5G Innovation Centre at the University of Surrey. That means the opportunity for properly connected smart cities, remote surgery, driverless cars and the "internet of things". So, how best to understand this joined-up, superfast,