Introduction Microwaves are generally describes as electromagnetic waves with frequencies that range from approximately 500 MHz to 300 GHz or more. Therefore, microwaves…
Slide 1How to work more sporadic e on 2m Dave Edwards – G7RAU Slide 2 The ionosphere (1) The ionosphere is broken down into 4 defined areas and a very rough guide follows.…
Skip Distance and Skip Zone Skip Distance and Skip Zone Skip distance(ds) is defined as the minimum distance from a transit antenna that a sky waveat a given frequency will…
MCI 2515H MARINE CORPS INSTITUTE ANTENNA CONSTRUCTION AND PROPAGATION OF RADIO WAVES MARINE BARRACKS WASHINGTON, DC UNITED STATES MARINE CORPS MARINE CORPS INSTITUTE 912…
Slide 1 General Licensing Class Subelement G4, Questions Only Amateur Radio Practices 5 Exam Questions, 5 Groups Slide 2 G4A01 What is the purpose of the “notch filter”…
Element 3 General Class Question Pool Your HF Transmitter Valid July 1, 2011 Through June 30, 2015 G8A01 What is the name of the process that changes the envelope of an RF…
G2E01 Which mode is normally used when sending an RTTY signal via AFSK with an transmitter? USB DSB CW LSB G2E02 How many data bits are sent in a single PSK31 character?…
The Solar Dynamo Saga: Chapter 11 Dr. David Hathaway NASA Marshall Space Flight Center 2009 August 15 Huntsville Hamfest Outline Sunspots, space weather, and climate Solar…
HF management communication system and link optimization HF management communication system and link optimization Bruno Zolesi. [email protected] Istituto Nazionale di…
HF management communication system and link optimization HF management communication system and link optimization Bruno Zolesi. [email protected] Istituto Nazionale di…