Propagation of VHF and UHF electromagnetic waves over a grove of trees in full leaf

Results are reported of horizontally polarized signal strength measurements at frequencies of 82,210,633, 1280, and 2950 MHz. Measurements of signal strength versus height were made at various distances behind a grove of live oak and hackberry trees in full leaf. Propagation took place over approximately the same path neat the receiver terminal at all frequencies. Ideal knife edge diffraction curves provided exceptionally good agreement with the measured curves.