'Nvis' presentation slideshows

NVIS

1.3k views • 58 slides

Charles Rogers, KJ5KU Duke City Hamfest/ ARRL New Mexico State Convention August 3-4, 2012

NEAR VERTICAL INCIDENCE SKYWAVE (NVIS). Charles Rogers, KJ5KU Duke City Hamfest/ ARRL New Mexico State Convention August 3-4, 2012. NVIS. Presentation Outline Definition and Applications Theory and Propagation Practical NVIS Antennas NVIS Forecast for F2 Layer

982 views • 57 slides

NVIS

1.02k views • 50 slides

NVIS

657 views • 50 slides

NVIS N ear V ertical I ncident S ky w ave

NVIS N ear V ertical I ncident S ky w ave. Norm Fusaro, W3IZ. Introduction. What Is NVIS? What are the advantages of NVIS? How to deploy NVIS. What Is NVIS?.

1.14k views • 34 slides

518 views • 31 slides

Antennas for Emergency Communications

Antennas for Emergency Communications. HF Antenna. The NVIS Antenna. The Problem. Introduction to NVIS. What Is NVIS? What are the advantages of NVIS? How to deploy NVIS. What Is NVIS?.

491 views • 25 slides

Near Vertical Incidence Sky Wave (NVIS) Propagation

Near Vertical Incidence Sky Wave (NVIS) Propagation. Marc C. Tarplee, Ph.D. NCE N4UFP. Background. Near Vertical Incidence Sky Wave (NVIS) propagation provides local and regional coverage on the lower HF bands. NVIS is not new. German army experimented with NVIS during WW II

278 views • 23 slides

NVIS Antennas

656 views • 16 slides

NVIS Propagation

NVIS Propagation. Ron Hranac, N0IVN. NVIS Propagation. VHF and UHF simplex and repeater operation can provide generally reliable local and regional communications But these modes are limited to line-of-sight!. Line-of-Sight Propagation. Source: http://www.ycars.org. NVIS Propagation.

462 views • 15 slides