ARLA/CLUSTER: O "Eclipse" da Rede de Satélites da AFN.

[João Gonçalves Costa]

[http://www.lampholderpub.com/solarflare.storm.jpg][http://www.next100.com/Solar%20flares.jpg][http://photos-c.ak.fbcdn.net/hphotos-ak-snc1/hs205.snc1/7234_155448394240_97826164240_2441754_5820417_n.jpg]

Sun to disrupt AFN TV, radio signal in Europe

American Forces Network radio and television signals in Europe will be interrupted for up to 20 minutes at a time through March 13 due to the sun overpowering the network's satellite signal, AFN said in an announcement.

Sun outages occur twice a year when satellites "eclipse" the sun and their signals are overpowered by solar radiation, AFN said.

Local sun outages occur when the sun is at its highest point in the sky, the AFN announcement said.

However, depending on the number of satellite hops it takes for the AFN signal to arrive at its destination, some AFN customers may see temporary disruptions of their TV signal a few times during peak, sun-outage days.

Fontes: Media Network, Stars and Stripes.

Current Shortwave High Frequencies
Shortwave service is provided by the Navy as an option for their ships without the Navy's Direct-to-Sailor (DTS) capability.  Shortwave also serves as a backup to those customers with DTS.  Shortwave service is also an option for land-based listeners in remote locations that do not have access to local or satellite-delivered AFRTS full Satellite Network (SATNET) services.  Shortwave services are intended to operate 24/7 but do experience disruptions due to maintenance and atmospheric conditions.



Location        Band    Daytime Nighttime
Diego Garcia    Upper Sideband  12,759 KHz      4,319 KHz
Guam    Upper Sideband  13,362 KHz      5,765 KHz
Key West, Florida       Upper Sideband  12,133.5 KHz, 7812.5 KHz and 5,446.5 KHz        same as daytime
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