III. MEASUREMENTS CAMPAING AND COMPUTATIONS
The tropical forest where the experiment took place is located between Ogbomoso (LAT 8o 29’N, LONG 4o 29’E) and Oyo
(LAT 7o 50’N, LONG 3o 56’E), Nigeria. The forest can be classified as medium dense to dense vegetations with mixed
different types of plants. Figure 2a, b shows some parts of the forest. The forest consists of types of plants like Thick,
Mahogany, Iroko, Mango and palm trees etc. Dense canopies are formed by the leaves of the trees. The average thickness (trunk
diameter) and height of the trees range between 0.76m to 2.56m and 5.07m to 15.3m respectively. The spacing between the
trees is irregular and ranges between 3m to 7m. The forest ground is covered with scrubs. The 92.1MHz, 3.5kW transmitter is
employed in the experiment and located within the forest environment of interest. It consists of the transmitting antenna of
130m high, and the actual power radiated from the antenna after transmitter and cable losses are deducted is 2.5kW.