Frequency Issues Breakout Session Is there anything about the Broadband initiative and its impacts that you would like me to explain in more detail? Summary of changes resulting from broadband initiative Current GOES products & services: No change Current polar products: No change until/if sharing initiated GOES-R: GRB, EMWIN/HRPT not affected – frequency may change JPSS: HRD not affected; LRD may be affected HRPT-like broadcasts likely to continue well into 2020s (MetOp-C) Timing of auction unknown Purchase of spectrum by broadband industry and ultimate use uncertain We must proceed as if sharing will happen within 5 years in the U.S.

Frequency Issues Breakout Session Is there anything about the Broadband initiative and its impacts that you would like me to explain in more detail? Short overview of NOAA radiosonde operations & effects upon interference in L-Band Questions & discussion topics for polar HRPT users Do you experience interference today? If so, how bad is it? Is it predictable? Do you know what causes it? Have you reported your interference to NOAA? If you are located outside a future exclusion zone, what impacts to your operations do you predict? What aspects of your operation will be affected? How? Impacts? Is there anything we can do to minimize the probability of interference? Shielding? Location of antennas? Beam characteristics?

Present- Day Fast-track Shared Spectrum GOES-R & JPSS Era: Current GOES & Polar Current  end of life GOES-15: mid-2020 Polar: 2022 (MetOp-C) 6-10 year overlap period when legacy & new are operating 15 MHz Shared Band Recommended For Fast- Track Sharing 3 Future “Sharing” will be implemented with goal of preventing harmful interference between government & commercial sectors