السلام عليكم ورحمة الله وبركاتة
اخوان اني اريد عمل شبكة واسعة وعندي بعض الاستفسارات عن هذه الترددات يعني كمل المسافة التي يرسلها البرج وكم المسافة التي يستطيع الشخص المستلم ان يقوم بارجاع المعلومة الى البرج
يعني مساحة تغطية البرج ومساحة ارجاع المعلومة من المستخدم الى البرج وهل هذه تحتاج الى تراخيص ام لا
هذا المعلومات
ارجو الرد
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الموديل الاول
GE-23 Payload Specifications
C-band Payload 12 x 36 MHz; 6 x 72 MHz
Amp Type TWTA, 80 Watt
C-Band Frequencies 3,700 – 4,200 MHz downlink
5,925 – 6,425 MHz uplink
Coverage Alaska, Australia, Asia-Pacific, Hawaii,
New Zealand, Western North America
Receiver Redundancy 4 for 2
Transponder Redundancy 22 for 18
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الموديل الثاني
Ku-band Payload 20 channels, switchable among 27, 36 and
72 MHz bandwidths
Amp Type TWTA, 138 Watt
Ku-Band Frequencies 10,900 – 12,800 MHz downlink
14,000 – 14,500 MHz uplink
Coverage Entire Pacific Ocean Region
Receiver Redundancy 1 spare unit per frequency group
Transponder Redundancy 26 for 20
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وهذه معلومات اخرى
SAT-GE, a subsidiary of GE, provides
satellite capacity on GE-23 (former
name AMC-23) across the Pacific basin,
encompassing 6 individual beams, 5
Ku-band and 1 C-band that give almost
total coverage of both land mass and
ocean, in the Pacific region; from Perth
in Australia to Los Angeles in the USA
and from Alaska to South New Zealand.
GE-23 offers Ku-band cross-connectivity
capability, allowing uplink in any of the
5 Ku-band beams and downlink in the
same or another beam. This feature
allows – for example, for the provision
of DTH services in Australia or New
Zealand, while uplinking directly from
Hong Kong or Los Angeles; or it could
allow a SNG uplink in Asia to feed a
broadcaster located in the US or
Australia / New Zealand. In C-band, a
single Trans-Pacific beam allows uplink
from anywhere within that beam and
simultaneous downlink to everywhere
within that beam.
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المفضلات