NVIS Antenna

30 links - and 1 categories

Extended Double Zepp NVIS Antenna Calculator - Extended Double Zepp measurements for all ham bands, and online calculator. The antenna is constructed much like an ordinary Dipole antenna but with 5/8 Wavelength Elements matched with an added Impedance Matching Section of balanced feed line
[ Hits: 125 | Votes: 3 | Rating: 7 ]

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: 476 | 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: 654 | Votes: 4 | Rating: 5 ]
Portable NVIS Loop for 80m to 40m - A portable (15.5 foot diameter) NVIS loop for 3.5 to 7.3 MHz. Performs well at high and low takeoff angles, and has smaller footprint than most NVIS antennas.
[ Hits: 367 | Votes: 0 | Rating: 0 ]

Invisible Antennas (almost) - Articles for amateur radio newsletters aimed at new hams by WD4BIS
[ Hits: 916 | Votes: 4 | Rating: 8.75 ]
40 m short vertical - A shortened and invisible wire antenna for 7 MHz
[ Hits: 6207 | Votes: 17 | Rating: 7.65 ]

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 ]

Mastering HF Communication: Decoding Space Weather Data - The article enlightens radio amateurs on utilizing real-time space weather data to optimize HF communication. Navigating through Hp30 index, MUF, f0F2, and eSFI metrics, it explains their significance in band selection and propagation forecasting. With essential links and practical insights, enthusiasts learn to discern optimal conditions for high-band DX, low-band DX, and NVIS operations. The author's observations and antenna optimization tips enrich understanding for effective HF operations.
[ Hits: 68 | Votes: 0 | Rating: 0 ]

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 ]