sky wave antenna

sky wave antenna

Antennas : Loop

• Skywire Loop Antenna - Also known as W0MHS Loop Skywire or Full Wave Loop Antenna, here you can find N1SU interesting observations on this antennas.
  [ Hits: 4250 | Votes: 5 | Rating: 7.8 ]

• About NVIS antennas - What is NVIS Near Vertical Incident Skywave
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• Near Vertical Incident Skywave Antenna - W0IPL article on NVIS Antenna
  [ Hits: 854 | Votes: 1 | Rating: 9 ]
• 40 Meter NVIS antenna - Near Vertical Incidence Skywave (NVIS) and the 40 meter Novice Sub-band.
  [ Hits: 1664 | Votes: 0 | Rating: 0 ]
• NVIS Antenna Design - A presentation on designing Near-Vertical Incidence Skywave (NVIS) antennas and all related EZNEC models in a single zip file or the single presentation in PDF File
  [ Hits: 489 | Votes: 1 | Rating: 9 ]
• The Near Vertical Incident Skywave (NVIS) antenna - Introduction to NVIS antenna and NVIS propagation. A simple NVIS antenna can be constructed as shown in this article
  [ Hits: 475 | Votes: 1 | Rating: 10 ]
• DIY NVIS Antenna Using a Mag Mount - NVIS antennas, also known as Near Incident Vertical Skywave antennas have a high angle of radiation. Something on the order of 60 degrees, to straight up to 90 degrees. A portable, easy to setup and cheap nvis antenna project.
  [ Hits: 652 | Votes: 4 | Rating: 5 ]

• Small Loop Antenna Array for HF Reception - Receive-only loop antennas have some nice response characteristics that make them ideal when used for reception of skywave signals.
  [ Hits: 933 | Votes: 1 | Rating: 9 ]

• The Yagi Antenna - Presentation - A presentation of the Yagi Antennas, and other interesting tid-bits by Brian Mileshosky. This document explains basic concepts of Yagi-Uda antenna theory, influence of reflector and directors on global antenna gain and directivity of radio waves. A simple tape measure antenna project is also included.
  [ Hits: 543 | Votes: 2 | Rating: 7 ]

• NVIS: Near Vertical Incidence Skywave - Operating NVIS mode, understanding operation frequencies, choosing the proper antenna to operate with the Near Vertical Incidence Skywave propagation
  [ Hits: 385 | Votes: 6 | Rating: 5.58 ]

• NVIS Propagation - Near Vertical Incidence Skywave propagation is a form of radio wave propagation used on the MF and HF bands to provide radio communications and broadcasting coverage over short distances, especially where the terrain contains obstacles.
  [ Hits: 446 | Votes: 1 | Rating: 10 ]

• Propagation on 630 Meters and 2200 Meters - This is a theoretical look at propagation on 630-Meters and 2200-Meters using ray tracing software. It expands on the brief discussion in the ARRL Handbooks. The Earth's magnetic field affects 630-Meter and 2200-Meter band propagation. Lower ionization reduces absorption, aiding low-frequency propagation. Differences exist between bands, limited daytime sky-wave propagation. Sunrise/sunset show promise, yet mechanisms are unclear. Ducting possible at night in specific conditions. Negative ions enhance propagation. Inefficient antennas and high man-made noise are anticipated. Groundwave propagation is significant on 2200-Meters.
  [ Hits: 38 | Votes: 1 | Rating: 10 ]

• SWL Antenna Distribution System - a methodology for connecting multiple LF/MF/HF receivers to a single antenna via readily available and inexpensive 75-ohm TV cable.
  [ Hits: 1385 | Votes: 2 | Rating: 6 ]