A single S-band boom antenna on each satellite (deployed after launch by a pyrotechnic device) enables the satellite to communicate with Earth . There are small backup antennas on the top of each satellite to provide backup communication as required.
Read moreWhat is the difference between S band and C band?
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 . Because of the wavelength and frequency, the dish size does not need to be very large. This makes C band radars affordable for TV stations.
Read moreWhat frequency does weather radar use?
WMO is concerned about this as the use of the 2.7–2.9 GHz frequency (S-band) by meteorological radars is critical for weather monitoring and prediction applications.
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