Broadcast Station: Radio Canada International
Country: Canada
Frequency: 11935 Khz
UTC: 1600-1630 13.12.07
SINPO: 43444
Radio Programm: News
Subscribe to:
Posts
(
Atom
)
RADIO OF MOLDAVIA
Freq. 15690 Khz/Moldavia
TUNISIAN RADIO
Freq. 7190 Khz/Tunisia
RADIO BUDAPEST
Freq. 9665 Khz/Hungary
Radiodifusão Portuguesa Intl.
Freq. 11665 Khz/S. Gabriel
NIPPON HOSO KYOKAY
Freq. 6180 Khz/Japan
RADIO TIRANA
Freq. 6115 Khz/Albania
SERV. OF THE KINGDOM OF SAUDI ARABIA
Freq. 9780 Khz/Saudi Arabia
NBS OF THAILAND
Freq. 9680 Khz/Thailand
Philippines Broadcasting Services
Freq. 9380 Khz/Philippines
TRANS WORLD RADIO
Freq. 9500 Khz/Swaziland
ANTENNAS
Wideband omni-directional Discone antenna (with wide-frequency coverage VHF/UHF scanners and receivers, the Diamond D130J Discone consists of 16 rugged, stainless steel elements and is capable of transmitting up to 200 watts in the amateur 50, 144, 220, 432, 900, and 1200 MHz bands).Omni-directional for continuous 25-1000 MHz
EQUIPMENT YAESU VR 5000
Circular Omnidirectional dipole antenna of broadband of FM for the reception of signals in band II.
Dipolo Antenna - A dipole antenna, developed by Heinrich Rudolph Hertz around 1886, is an antenna with a center-fed driven element for transmitting or receiving radio frequency energy.
GE 3-5825B & Hansen SWR 3S
FREQUENCIES USED IN SHORTWAVE BROADCAST
PROPAGATION CHART
RADIO PROPAGATION
Radio propagation is a term used to explain how radio waves behave when they are transmitted, or are propagated from one point on the Earth to another.
In free space, all electromagnetic waves (radio, light, X-rays, etc) obey the inverse-square law which states that the power density of an electromagnetic wave is proportional to the inverse of the square of "r" (where "r" is the distance [radius] from the source) or:
Doubling the distance from a transmitter means that the power density of the radiated wave at that new location is reduced to one-quarter of its previous value.
The far-field magnitudes of the electric and magnetic field components of electromagnetic radiation are equal, and their field strengths are inversely proportional to distance. The power density per surface unit is proportional to the product of the two field strengths, which are expressed in linear units. Thus, doubling the propagation path distance from the transmitter reduces their received field strengths by one-half.
Electromagnetic wave propagation is also affected by several other factors determined by its path from point to point. This path can be a direct line of sight path or an over-the-horizon path aided by refraction in the ionosphere.
Lower frequencies (between 30 and 3,000 kHz) have the property of following the curvature of the earth via groundwave propagation in the majority of occurrences. The interaction of radio waves with the ionized regions of the atmosphere makes radio propagation more complex to predict and analyze than in free space. Ionospheric radio propagation has a strong connection to space weather.
RADIO TRANSMISSION DIAGRAM
SWARL CALLSIGN
QSL CARD
