NVIS

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NVIS

42 links - and 3 categories

Antennas : NVIS
  • NVIS antenna design - Theory, Modeling, and Practical Applications By W5JCK, presentation in PDF File
    [ Hits: 3348 | Votes: 7 | Rating: 3.57 ]
  • Lowering NVIS antennas - Lowering an NVIS or N.V.I.S. antenna very close to the ground enhances NVIS operation
    [ Hits: 1887 | Votes: 3 | Rating: 8 ]
  • How to build NVIS antenna - How to homebrew a ENVIS antenna for 80 and 40 meters band
    [ Hits: 1717 | Votes: 4 | Rating: 10 ]
  • Near Vertical Incident Skywave Antenna - W0IPL article on NVIS Antenna
    [ Hits: 853 | Votes: 1 | Rating: 9 ]
  • 40 m NVIS Square Loop antenna - A NVIS square loop antenna with a parasitic reflector for 40 meter band by NA4L
    [ Hits: 2324 | Votes: 7 | Rating: 6.57 ]
  • 40 Meter NVIS antenna - Near Vertical Incidence Skywave (NVIS) and the 40 meter Novice Sub-band.
    [ Hits: 1661 | Votes: 0 | Rating: 0 ]
  • Super Gain NVIS antenna - A 40 meter NVIS beam antenna by W4NVK
    [ Hits: 1294 | Votes: 0 | Rating: 0 ]
  • NVIS antennas - Understanding Amateur Radio NVIS Antennas and Propagation
    [ Hits: 580 | Votes: 1 | Rating: 4 ]
  • 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: 474 | 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: 643 | 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: 363 | Votes: 0 | Rating: 0 ]
Antennas : Stealth
  • 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: 6189 | Votes: 17 | Rating: 7.65 ]
Antennas : Theory : Antenna Gain Operating Modes : NVIS
  • Near vertical incidence skywave - wikipedia - The wikipedia article about NVIS Near vertical incidence skywave with information about usable frequencies and some general information on main NVIS oeprations usages
    [ Hits: 288 | Votes: 0 | Rating: 0 ]
  • 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: 383 | Votes: 6 | Rating: 5.58 ]
Propagation : MUF Indicators Propagation : NVIS Propagation
  • 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 ]
Software : Weak Signal
  • FSQCall Fast Simple QSO - FSQ is a Fast Simple QSO mode designed specifically for HF. It works well under NVIS and sunrise/sunset conditions on the lower bands, and also works well for short skip and grey-line on higher bands and can be used also on VHF FM.
    [ Hits: 184 | Votes: 0 | Rating: 0 ]

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