Operating Season at www.japanese-home-gardens.com

Care of mowers during the operating season, and especially before winter storage, is of great importance. Keep the mower clean. After each use free it of grass clippings, wipe its blades with an oily rag, and if it is wet, put it where it will dry quickly. Be sure it is oiled occasionally,.

Savanna grass-ind develops in regions of high temperature that ave a distinct wet and dry season. Growth is ipid in the wet season, but the plants become ry and low in quality in the dry season. Widely >aced drought-resistant trees may occur in some •eas such as in the savanna parklands of Africa id Australia. Savannas are subject to flooding i the wet season and to extensive burning in le dry season. These grasslands are heavily•azed by large numbers of cattle. Major prob-ms are poor grass quality in the dry season, irasites, and disease. The tsetse fly is a major•oblem in Africa. There are no true savannas North America.

A transmitting antenna is designed to operate most efficiently at a particular operating frequency. This frequency dictates the lengths and spacings of the antenna elements and, to some extent, the separation that must be maintained from surrounding objects and structures. The length of a transmitting or receiving antenna commonly is expressed in terms of the wavelength at the operating frequency. The physical length then is related to the operating frequency by using Equation 1 section 10.