Hi Joel, In my opinion your elevated radials are a show stopper for an adjacent receiving antennas unless you can disconnect all of them when you're receiving. 73 Frank W3LPL -- Original Message -- H
Hi Mark, Very true on the HF bands. but not true on 160 meters at mid to high latitudes. On 160 meters both entry and exit polarization tend to be vertically polarized at mid to high latitudes. This
Hi Luke, What I should have said is that propagation towards much lower latitudes doesn't suffer from the polarization related issues that high latitude paths suffer from. My thinking suffers from no
Hi Jim, Have you considered using RG-303 or RG-400 ? They're commonly available on the internet and at hamfests at discount prices. Its similar in diameter to RG-58 but rated well over 1500 watts on
Hi Peter, What you need in a common mode choke is adequate resistive component to absorb common mode signals as heat. The choke doesn't need to be at resonance to achieve adequate choking resistance,
www.arrl.org/news/storm-takes-down-amateur-radio-contest-club-towers-in-northern-europe -- Original Message -- Not sure how long they were on, but I remember it was the years of decent propagation My
Laser Com Announces New Topband Antenna System Reported by Woody K3YV Laser Com, Inc. of Titusville, Florida recently announced their development of a revolutionary new 160 meter antenna system based
If we could turn the clock back to the 1950s we'd hear exactly the same arguments from the AM DXers. If we turned the clock back to the early 1920s with the discovery of 40 and 20 meter DX you'd hear
Solar precursors correlating solar physical phenomena with the level of future solar activity are much better indicators of the progress of a broad phase of the solar cycle -- solar minimum -- than f
Hi Adrian, Google is your friend, search for "radial plow" Good luck 73 Frank W3LPL -- Original Message -- From: "vk2wf" <vk2wf@bigpond.com> To: "VK3HJ" <vk3hj@wia.org.au>, topband@contesting.com Sen
Hi Larry, A 600 foot Beverage 6 feet is a superb topband receiving antenna, especially if you're careful to prevent common mode signals on the outside of the coaxial cable shield from entering the co
Hi Tony, Your proposed configuration will work fine. Your three foot wire is actually part of your vertical. You're vertical will need to be shortened a few feet to achieve resonance. While its very
Hello Ash, Your results are normal for a typical Beverage. Receiving performance is not significantly degraded by imperfect matching of the coaxial feedline to the Beverage feed point or by non-optim
Hi Ed, 600 feet is much too long for a BOG on any ham band except 630 meters. Performance deteriorates as you lengthen a 160 meter BOG beyond about 225 feet. Because a BOG is so lossy, an unterminate
Hi Carl, Since your BOG is producing signal levels close to your regular Beverages, its not actually performing as a BOG. Which is a good thing! A typical 225 foot BOG has much broader 3 dB beamwidth
Chuck, I used the BN73-202 transformer exactly as shown on W8JI's website and it work very well on 630 meters. I wish my Beverage were 2000 feet long instead of 580 feet... 73 Frank W3LPL ___________
Hi Mike, A horizontally polarized loop -- or any other horizontally polarized 160 meter antenna -- has extremely poor sensitivity when installed less than about 0.1 wavelenght above the ground. Even
Hi Ron, A short Beverage -- regardless of its velocity factor -- has the radiation pattern of a short Beverage. You can't improve the performance of a Beverage antenna by lowering its velocity factor
Hi Mike, Congratulations on your first post regarding BOGs. They're a great antenna when stealth is the driving requirement, but here are better choices when stealth isn't so important. The front-to-