Indonesia
Okumaya devam et...
← Previous revision | Revision as of 22:54, 28 April 2024 |
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| Measurements of rain attenuation in Indonesia have been done for satellite communication links in Padang, Cibinong, Surabaya and Bandung. The DAH Model for rain attenuation prediction is valid for Indonesia, as is the ITU model. The DAH model has become an ITU recommendation since 2001 (Recommendation No. ITU-R P.618-7). This model can create a 99.7% available link so that K<sub>u</sub>-band can be applied in Indonesia. | Measurements of rain attenuation in Indonesia have been done for satellite communication links in Padang, Cibinong, Surabaya and Bandung. The DAH Model for rain attenuation prediction is valid for Indonesia, as is the ITU model. The DAH model has become an ITU recommendation since 2001 (Recommendation No. ITU-R P.618-7). This model can create a 99.7% available link so that K<sub>u</sub>-band can be applied in Indonesia. |
| Use of the K<sub>u</sub>-band for satellite communications in tropical regions like Indonesia is becoming more frequent. Several satellites above Indonesia have K<sub>u</sub>-band [[transponder]]s, and even [[Ka band|K<sub>a</sub> band]] transponders. [[NSS 6]], launched in December 2002 and positioned at 95° East, contains only K<sub>u</sub>-band transponders with a footprint on Indonesia ([[Sumatra]], [[Java]], [[Borneo]], [[Sulawesi|Celebes]], [[Bali]], [[Nusa Tenggara]], [[Moluccas]]). NSS 6 is intended to be replaced by [[SES-12]] at the same location, which launched in June 2018 and carries 54 K<sub>u</sub>-band transponders. The [[Thaicom 4|IPSTAR 1]] satellite, launched in 2004 also uses K<sub>u</sub> band footprints. Other satellites that provides K<sub>u</sub> band covers Indonesia are [[MEASAT-3a]], [[JCSAT-4B]], [[AsiaSat 5]], [[ST-2]], [[Chinasat]] 11, [[ABS-2|Koreasat 8/ABS-2]], [[SES-8]], and [[Nusantara Satu]]. | Use of the K<sub>u</sub>-band for satellite communications in tropical regions like Indonesia is becoming more frequent. Several satellites above Indonesia have K<sub>u</sub>-band [[transponder]]s, and even [[Ka band|K<sub>a</sub> band]] transponders. [[NSS 6]], launched in December 2002 and positioned at 95° East, contains only K<sub>u</sub>-band transponders with a footprint on Indonesia ([[Sumatra]], [[Java]], [[Borneo]], [[Sulawesi|Celebes]], [[Bali]], [[Nusa Tenggara]], [[Moluccas]]). NSS 6 is intended to be replaced by [[SES-12]] at the same location, which launched in June 2018 and carries 54 K<sub>u</sub>-band transponders. The [[Thaicom 4|IPSTAR 1]] satellite, launched in 2004 also uses K<sub>u</sub> band footprints. Other satellites that provides K<sub>u</sub> band covers Indonesia are [[MEASAT-3b]], [[JCSAT-4B]], [[AsiaSat 5]], [[ST-2]], [[Chinasat]] 11, [[ABS-2|Koreasat 8/ABS-2]], [[SES-8]], and [[Nusantara Satu]]. |
| ===Others=== | ===Others=== |
Okumaya devam et...