During the operation of atmospheric radio sounding systems, there appears a two-sided problem of electromagnetic compatibility with other radio-electronic systems for various purposes, ground, air and space based. Out-of-band emissions from upper-air radiosonde transmitters interfere with global satellite navigation systems and cellular systems. The paper presents the analysis of methods for reducing out-of-band emissions of aerological radiosondes and proposes the use of technology of spread spectrum communication systems in aerological complexes.
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