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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
December 15th is the big day for the interference potential. 375 NOXX01 KWBC 091958 TO ALL NOAAPORT-SBN CUSTOMERS . NOAAPORT-SBN -- GALAXY 15 -- UPDATE 001 . THE INTERFERENCE RISK IDENTIFIED BY THE NOAAPORT-SBN SATELLITE PROVIDER DUE TO THE GALAXY 15 SATELLITE IS SCHEDULED TO --FLY BY-- SOMEWHERE BETWEEN DEC 12TH AND DEC 18TH . CURRENT PROJECTIONS HAVE THE INTERFERENCE TAKING PLACE AROUND WEDNESDAY DEC 15TH. THE FOLLOWING PLAN IS BEING FINALIZED TO MITIGATE IMPACT TO OUR CUSTOMERS 1. THE AWIPS NOAAPORT-SBN DATA WILL BE ROUTED VIA ITS NORMAL PATH THROUGH THE CURRENT PRIMARY AWIPS MASTER GROUND STATION 2. THE AWIPS PRIMARY MASTER GROUND STATION WILL BROADCAST THE SIGNAL FEED THROUGH A DIFFERENT SATELLITE FOR ROUTING TO ANOTHER MASTER GROUND STATION IN THE PACIFIC. 3. THE AWIPS NOAAPORT-SBN DATA WILL THEN BE RE-BROADCAST VIA THE MASTER GROUND STATION IN THE PACIFIC USING THE PRIMARY SATELLITE FREQUENCY AND THEN DOWN LINKED USING CURRENT AWIPS NOAAPORT-SBN PARAMETERS. AFTER CONFIRMATION IS RECEIVED THAT GALAXY 15 CAN NO LONGER INTERFERE WITH THE AWIPS PRIMARY SATELLITE ALL SERVICES WILL BE RETURNED TO THEIR NORMAL CONFIGURATION. A TEST OF THE INTERFACE FOR THIS MITIGATION PLAN IS SCHEDULED TO TAKE PLACE TOMORROW --DEC 10TH-- 2000Z TO 2200Z. THE TEST WILL CONSIST OF MOVING NWS SITES FROM THE CURRENT PRIMARY FREQUENCY OPERATING OUT OF THE BACKUP MASTER GROUND STATION IN FAIRMONT WV TO THE TEMPORARY PATH THROUGH THE PRIMARY MASTER GROUND STATION OPERATING OUT OF HAUPPAUGE NY. TO ALSO MINIMIZE IMPACT TO DATA FLOW THE PRIMARY AWIPS NOAAPORT-SBN SIGNAL PATH WILL BE AVAILABLE FROM THE BACKUP MASTER GROUND STATION IN FAIRMONT WV. IF THE TEST INTERFACE MEETS ALL EXPECTATIONS NWS WILL LEAVE ALL CUSTOMERS ON THE ALTERNATE PATH FOR THEIR AWIPS NOAAPORT-SBN DATA UNTIL THE GALAXY 15 RISK IS NO LONGER A CONCERN - EXPECTATIONS ARE FOR THIS SERVICE REALIGNMENT TO END ABOUT DEC 18TH ADDITIONAL INFORMATION WILL BE PROVIDED REGARDING THIS POTENTIAL PROBLEM AS MORE INFORMATION IS MADE AVAILABLE. IF YOU HAVE ANY QUESTIONS, PLEASE CONTACT THE NWSTG AT 301-713-0902. YOUR PATIENCE WITH US DURING THIS EVOLUTION IS GREATLY APPRECIATED. NWSTG P.S. TO CHECK FOR THE LATEST STATUS MESSAGE FROM THE NWS RECOMMEND USE OF THE FOLLOWING WEB PAGE . -- WEATHER.NOAA.GOV-FORWARD SLASH-TGSTATUS -- Here's the kicker: I'm going to guess that the satelliteit's going to be broadcast from will be unencrypted/scrambled, the one that will send the broadcast to Hawaii. If anyone has a rotor on their
dish, I'm thinking they could pick up the broadcast from there. Anyone interested in doing this? I could call the NCF and find out. That would definitely eliminate any issues for us! ******************************************************************************* Gilbert Sebenste ******** (My opinions only!) ****** Staff Meteorologist, Northern Illinois University **** E-mail: sebenste@xxxxxxxxxxxxxxxxxxxxx *** web: http://weather.admin.niu.edu ** *******************************************************************************
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