SOLAR INTERFERENCE SPRING 2003

[jorge]

Quizas a los usuarios de entel les sirva.
 
> Para tener en consideración.
> 
> 
> 
> Subject: SOLAR INTERFERENCE SPRING 2003
> 
> 
> FYI:
> 
> Once again, it's that time of the year for those in the communications
> industry to experience the natural phenomena of Solar Interference.  Solar
> interference is a form of outage that affects service when the sun passes
> directly behind a satellite.  The sun, being of such a high temperature, is
> an extremely powerful noise source and is capable of overpowering satellite
> transmissions.  This type of outage may last up to 10 minutes on
> approximately 6 consecutive days.  The interference can be expected twice
> yearly for each location, on days near the Equinox.  This translates to four
> outages a year per circuit.  The actual date and time solar outages may
> occur will vary with each station's geographical location.  Stations farther
> north experience outages a few days earlier than those stations located
> further south.  Also, stations farther west are affected earlier than those
> located east.
> It will affect our Americatel - Entel LAN connection, the Corporate Video
> Conference System, the Entel Collect Call Verification and the new 128 K
> Sixbell dedicated Connection to Chile on the following days and time:
> 
>                      Date            Time (GMT)         Duration (minutes)
>       1 APR 2003             1522                      6
>                   2 APR 2003             1521                      8
>                   3 APR 2003             1521                      8
>                   4 APR 2003             1521                      7
>                   5 APR 2003             1522                      4
> 
> _______________________________________________