TV MARTI CAN AND MUST BE SEEN IN CUBA: WHY IS IT NOT?
By Manuel Cereijo
TV Marti is the most powerful weapon that we can have to overthrow Castro. To inform the Cuban people, daily, of the true world, what is happening, how is life in the United States, and the rest of the world, is something Castro cannot afford and what he fears most. Why has not been done yet?
To interfere TV Marti, Castro uses AM radio signals, like the signals transmitted in the United States by your local AM stations. In Miami, signals like WQBA, WAQI, etc. Why? Because TV video signals are transmitted using AM radio signals, but at a higher frequency and bandwidth.
Instead of voice or music, the signal used to interfere TV Marti is called a "tone", that can be compared to a wisthle, or the sound that we hear on the radio when they simulate an emergency situation as a test.
The maximum power allowed in the United States by the FCC to radio stations is 50,000 Watts. And even so, very few stations get so high because it costs money to do so. This is, by the way, also an international regulation, to avoid interference of stations.
The radio signals that Castro uses to interfere TV Marti have a power of 500,000 Watts. Ten times more powerful. Castro has 5 stations dedicated to interfere TV Marti. Three of them "donated" by the former Soviet Union, and 2 purchased in Japan.
Five antennas are used. They are located at: Hotel Habana Libre, Hotel Triton, Guanabo, Alamar, and Mirador de Lawton. Why in these places? Because the signal transmitted by TV balloon is a narrow beam signal concentrated in those neighborhoods. Whenever the TV Marti signal has been deviated just a few degrees from that area, the signal has been seen without interference in Matanzas, or Pinar del Rio, depending on the directional deviation.
Castro also have in place some special equipment to interfere UHF signals. TV Marti is presently transmitted in VHF, that is, in the range of frequencies occupied by channels 2 to 13. UHF are the channels from 14 up. However, Castro purchased these equipment in the late 80s, anticipating the change of frequency spectrum of TV Marti to UHF. The equipment has not been properly kept, and are not in working conditions.
UHF is a much higher frequency signal. The higher the frequency of the signal, the more difficult is to interfere and the easier for the Cuban people to watch. Castro needs, in order to have an efficient interference signal for the entire country, one station per 50,000 inhabitant neighborhoods or geographical regions. That is, to interfere TV Marti, if transmitted to the entire Island, Castro needs 350 stations and 1,750 antennas. This is not feasible, technologically, neither financially. However, TV Marti has been, and still is, transmitting only to a certain area of La Habana.
Each of these stations need, because of the high power, a consumption of 1.7 barrels of oil per each hour of functioning. This is not feasible either for Castro if TV Marti were transmitted to the entire Island.
What is needed to transmit TV Marti in order to be seen in the whole Cuba properly?
1. Three transmitters, 5 Kw each. Approximately total cost, $ 150,000.
2. Three antennas, 1000 feet high each, directional. Approximately total cost $ 250,000.
3. One antenna in the center. The other two, one on the left, one in the righy.
Other costs: wire installation, engineering design, etc, possibly $2 million dollars total.
Transmission medium: Vestigial sideband, VSB, audio FM, video AM.
Change of frequency spectrum from VHF to UHF.
If this is implemented, TV Marti will be seen in all Cuba without a trace of interference.
TOTAL COST: Less than $3 million dollars.
What are we waiting for?
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