General Licensing Class “G3”. Presented by the Acadiana Amateur Radio Assoc. Lafayette, Louisiana. General Class Element 3 Course Presentation. ELEMENT 3 SUB-ELEMENTS G1 – Commission’s Rules G2 – Operating Procedures G3 – Radio Wave Propagation G4 – Amateur Radio Practices
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Presented by the
Acadiana Amateur Radio Assoc.
G1 – Commission’s Rules
G2 – Operating Procedures
G3 – Radio Wave Propagation
G4 – Amateur Radio Practices
G5 – Electrical Principles
G6 – Circuit Components
G7 – Practical Circuits
G8 – Signals and Emissions
G9 – Antennas
G0 – Electrical and RF Safety
(Solar winds coming towards the earth from the sun)
Terms we’ve heard before from space shuttle launches.
Now apply them to Ham Radio
31 – 400 miles
6 – 31 miles
0 – 6 miles
Strikes atoms in the upper atmosphere
Releasing an electron forming positive & negative ions
Electrically Neutral AtomHow the Ionosphere is Formed
Ultraviolet radiation is most responsible for ionization in the outer atmosphere.
During the day....
[All of these choices are correct]
⅛ - ¼ wavelength above ground
Valid July 1, 2007
June 30, 2011
G3A03 How long does it take the increased ultraviolet and X-ray radiation from solar flares to affect radio-wave propagation on the Earth?
G3A18 If the HF radio-wave propagation (skip) is generally good on the 24-MHz and 28-MHz bands for several days, when might you expect a similar condition to occur?
G3B01 Which band should offer the best chance for a successful contact if the maximum usable frequency (MUF) between the two stations is 22 MHz?
G3B02 Which band should offer the best chance for a successful contact if the maximum usable frequency (MUF) between the two stations is 16 MHz?
G3B04 What is a reliable way to determine if the maximum usable frequency (MUF) is high enough to support 28-MHz propagation between your station and Western Europe?
G3B05 What usually happens to radio waves with frequencies below the maximum usable frequency (MUF) when they are sent into the ionosphere?
G3C09 What type of radio wave propagation allows a signal to be detected at a distance too far for ground wave propagation but too near for normal sky wave propagation?