The red banner of the communists, the black-white-red of the Second Reich, and the new swastika flag of the Nazis all contended for allegiance. From 1933 to 1945 the Nazi symbols were dominant. The Federal Republic of Germany (West Germany) restored the old black-red-yellow flag on May 9, 1949, and the government made use of a similar flag with the eagle shield in the centre.
S band radars operate on a wavelength of 8-15 cm and a frequency of 2-4 GHz. Because of the wavelength and frequency, S band radars are not easily attenuated. This makes them useful for near and far range weather observation. The National Weather Service (NWS) uses S band radars on a wavelength of just over 10 cm. The drawback to this band of radar is that it requires a large antenna dish and a large motor to power it. It is not uncommon for a S band dish to exceed 25 feet in size. C band radars operate on a wavelength of 4-8 cm and a frequency of 4-8 GHz.
Privacy codes (CTCSS) are also compatible on all Midland GMRS and FRS radio models capable of this feature. Each radio must be set to the same channel and CTCSS code for the radios to communicate with each other. GMRS radio has a range of up to 5 miles or more. The range is relative to the obstacles around you. On an open field, or water the range is greater. Urban development may reduce the range to 2 miles or less. If you are in a tall building the range is about 20 floors. This is very common with two-way radios.