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Re: How does this affect us if at all? (fwd)


===============================================================================
Robb Kambic                                Unidata Program Center
Software Engineer III                      Univ. Corp for Atmospheric Research
address@hidden             WWW: http://www.unidata.ucar.edu/
===============================================================================

---------- Forwarded message ----------
Date: Tue, 4 Jan 2000 15:40:04 -0500
From: Michael W Dross <address@hidden>
To: John Snook <address@hidden>
Subject: Re: How does this affect us if at all?



I just checked my signal strength which is 5.2 it has been steady near 8.0,  so
at least at my site in North Carolina the new
satellite is a degradation in signal quality.

Mike




John Snook <address@hidden> on 01/04/2000 03:07:05 PM

To:   address@hidden (Gilbert Sebenste)
cc:   address@hidden (bcc: Michael W Dross/Cust/DukePower)
Subject:  Re: How does this affect us if at all?





I just spoke with Alden Electronics and they said that the new GE-IV
satellite is positioned in the same location as the old SpaceNet
satellite.  So, the change should be transparent to users.
Furthermore, the new GE bird should have a stronger signal
than the old one, which provides an upgrade in service.

John Snook
Colorado Research Associates

>
> Anyone?
>
>
*******************************************************************************
> Gilbert Sebenste                                                     ********
> Internet: address@hidden    (My opinions only!)                     ******
> Staff Meteorologist, Northern Illinois University                      ****
> E-mail: address@hidden                                 ***
> web: http://weather.admin.niu.edu                                      **
> Work phone: 815-753-5492                                                *
>
*******************************************************************************
>
> NOUS71 KNCF 031721
> ADANCF
>
> SUBJECT: AWIPS SATELLITE BROADCAST NETWORK CUTOVER FROM
> SN-IV TO GE-4 SPACECRAFT
>
> GE AMERICOM IS PREPARING TO TRANSFER ALL C-BAND
> TRANSMISSIONS FROM THE OLD SPACENET-IV SATELLITE TO THE NEW
> GE-4 SATELLITE.  APPROXIMATELY TWO WEEKS AGO, GEA MOVED ALL
> OF THEIR KU-BAND SERVICE TO THE NEW SATELLITE WITHOUT ANY
> PROBLEMS, AND THE NEW SATELLITE CONTINUES TO BE STABLE.
> THE AWIPS SBN IS ONLY ONE OF MANY USERS ON THE C-BAND
> TRANSPONDERS.
>
> GEA WILL PERFORM THE CUTOVER OF THE TRANSPONDER FOR ALL
> FOUR AWIPS SBN CHANNELS ON 04 JANUARY 2000 SOMETIME BETWEEN
> 0500Z AND 0900Z.  THE ACTUAL TRANSPONDER CUTOVER WILL
> AFFECT THE AWIPS BROADCAST FOR 30 TO 120 SECONDS.  DURING
> THIS PERIOD, SOME GARBLING OF AWIPS DATA COULD OCCUR.
> GOES-E, GOES-W, AND NON-GOES PRODUCT CHANNELS DATA DROPOUTS
> MAY BE SEEN ON PRODUCTS TRANSMITTED DURING THE CUTOVER.
> ANY NWSTG PRODUCTS THAT ARE GARBLED DURING THE CUTOVER WILL
> BE AUTOMATICALLY RETRANSMITTED, SO NO DATA LOSS SHOULD
> OCCUR.
>
> IF GEA ENCOUNTERS A PROBLEM DURING THE CUTOVER, THEY WILL
> REVERT BACK TO SN-IV UNTIL THE PROBLEM IS CLEARED.  DYNCORP
> (FORMERLY GTE) ENGINEERS WILL BE AT THE AWIPS MASTER GROUND
> STATION DURING THE PROCESS.  BOTH DYNCORP AND NCF ENGINEERS
> WILL BE MONITORING UPLINK AND DOWNLINK OPERATIONS
> THROUGHOUT THE CUTOVER.  THE NCF WILL TRANSMIT AN ADMIN
> MESSAGE VIA THE WAN AND SBN IF ANY PROBLEMS OCCUR.  A FINAL
> MESSAGE WILL BE SENT WHEN THE CUTOVER HAS BEEN SUCCESSFULLY
> COMPLETED.
>