'Sky wave' diaporamas de présentation

General License Class

General License Class. Chapter 7 Propagation. The Ionosphere. Regions Ionosphere The region of the atmosphere extending from 30 miles to 300 miles above the surface of the earth Solar radiation causes atoms in the ionosphere to become ionized

1.58k views • 137 slides

G3 - RADIO WAVE PROPAGATION [3 Exam Questions - 3 Groups]

G3 - RADIO WAVE PROPAGATION [3 Exam Questions - 3 Groups]. G3A Sunspots and solar radiation; ionospheric disturbances; propagation forecasting and indices G3B Maximum Usable Frequency; Lowest Usable Frequency; propagation "hops"

1.63k views • 120 slides

114 COMMUNICATIONS FUNDAMENTALS

114 COMMUNICATIONS FUNDAMENTALS. Responsibilities of the User. Identify User Requirements Coordinate with the S-6 to ensure requirements are met Be familiar with proper operation of certain types of equipment Comply with security measures Report outages as quickly as possible

714 views • 59 slides

Class 3

Class 3. et198B. ET 198B Commercial and Amateur (Ham) Radio FCC license Preparation Course. Bill Croghan WB0KSW PG-15-6818. Radio Wave Propagation How it gets there. Radio waves travel by a number of methods. 1. Direct, i.e. line of sight 2. Ground wave 3. Sky wave

523 views • 40 slides

General License Course Chapter 8

334 views • 33 slides

RF from DC to Light

RF from DC to Light. For science, fun and profit. RF from DC to Light. The RF Spectrum is full of all kinds of things: - The sounds of nature, lighting from thunder storms, meteors entering the earth atmosphere, earth quakes, and the solar

418 views • 29 slides

Chapter 7 Propagation

388 views • 27 slides

DATA COMMUNICATION NETWORKS

DATA COMMUNICATION NETWORKS. MIRZA IRFAN BAIG Asst Prof Department of Information Technology Balaji Institute of Technology & Sciences Laknepally, Narsampet zissiar2@yahoo.com +91-9985287172. Electromagnetic Wave Propagation. EM Wave Plane and Spherical waves Isotropic source

457 views • 23 slides

LO ng RA nge N avigation- LORAN, (Class II navigation)

353 views • 18 slides