I now have individual 80 and 40 meter NVIS antennas. The antenna design is based on the military AS with the dimensions shown in Figure 1. The efficiencies are low for a small.
The initial 40 meter phased array consists of two 10 foot high elements spaced one-half wave length apart. This array was limited because the bidirectional radiation pattern could only be turned in increments of 90 degrees by changing the phase 0 or degrees of the RF current between the elements. Adding a third element the bidirectional main lobe and the null can be positioned in increments of 30 degrees.
Last week, an online amateur radio retailer contacted me about writing some blog posts for his website. For many amateur radio operators, a vertical antenna may be the only option they have to put up an HF antenna. They may, perhaps, live on a small lot, or they may not have suitable trees or other antenna supports from which they can hang dipoles.
Spend a relaxing vacation with family or friends in this beautiful location with the bonus of a fully equipped radio shack! Amateur Radio Shack located in the quietness of Finnish woods. Installation of own antennas is possible for your experiments. Hoisting ropes are already installed.
Can be ground mounted or roof mounted. Work Stations all over the globe, simply clamp to a pipe in the ground, or mount on a standard roof or building mount too! A Tuner is not required, but is reccomended for any HF multiband antenna.
Although our answer was aimed at the Cushcraft R8, the information can be used for other vertical antennas that are mounted above ground. Put some gravel in the bottom of the hole for drainage, brace the mounting pipe with the threaded portion up, and use quick-crete you pour the dry stuff in the hole, then add water and stir with a stick. This is pretty much the system I used for my foot ground mount vertical.
Company Information Mosley History. Sales: e-mail: mosley mosley-electronics. Select Quality, Specifiy Mosley
England No. Add to basket view info. Cushcraft achieved a major breakthrough in the development of an HF multiband vertical antenna that has been specifically de