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Δευτέρα 21 Μαρτίου 2016

NASA TV Education

                    





NASA TV Education

Η μετάδοση ροής ξεκίνησε στις 3 Ιουν 2015

NASA TV on Satellite AMC-18C
January 28, 2014

NASA
Television’s channels NTV-1 (formerly the Public Channel) and NTV-3
(formerly the Media Channel) are now in high definition. NTV-2 (formerly
the Education Channel) is a standard digital feed. NTV-1 provides
real-time coverage of NASA missions, events and special programming.
NTV-2 provides real-time coverage of NASA missions, education content
and special programming in standard definition. NTV-3 provides mission
coverage, news conferences and relevant video and audio materials to
local, national and international news-gathering organizations.

All NASA Television channels are available on Satellite AMC-18C. Specific parameters for each channel are listed below.

NASA’s
Live Interactive Media Service (LIMS) is KU-Band service. KU-Band
parameters are provided prior to each event. NASA Television will
schedule each LIMS event on a satellite in proximity of AMC-18 whenever
possible.

News networks, their reporters, and other broadcast
media organizations must tune their satellite receivers to the NTV-3 to
ensure reception of clean feeds for all mission coverage, news
conferences, and other agency distributed news and information.NASA TV
is available in continental North America, Alaska and Hawaii on AMC-18C.
A Digital Video Broadcast (DVB) compliant Integrated Receiver Decoder
(IRD) is needed for reception. Below are parameters for each channel:

Uplink provider = AMC 18 C
Transponder = 3C
105 degrees W
C-Band
Downlink Frequency: 3760 MHz
Downlink Polarity: Vertical
Transmission Format = DVB-S, 4:2:0
FEC = ¾
Data Rate = 38.80 Mbps
Symbol Rate = 28.0681
Modulation: QPSK/DVB-S

NTV-1 Programming:
HD Program = 101 (HQ1)
Compression Format = MPEG-2
Video PID = 0x111 hex / 273 decimal
AC-3 PID = 0x115 hex / 277 decimal
MPEG I Layer II Audio PID = 0x114 hex / 276decimal

NTV-2 Programming:
SD Program = 102 (HQ2)
Compression Format = MPEG-2
Video PID = 0x121 hex / 289 decimal
AC-3 Audio PID = 0x124 hex /292 decimal
MPEG I Layer II Audio PID = 0x125 /293 decimal

NTV-3 Programming:
HD Program = 103 (HQ3)
Compression Format = MPEG-4
Video PID = 0x1031 hex / 4145 decimal
AC-3 Audio PID = 0x1035 hex /4149 decimal
MPEG I Layer II Audio PID = 0x1034 hex /4148 decimal

NASA LIMS (Live Satellite Interviews) Now KU-Band*

NASA’s
Live Interactive Media Service (LIMS) has moved to KU-Band service.
KU-Band parameters are provided prior to each event. NASA will schedule
each LIMS event on a satellite in proximity of AMC18 whenever possible.

Uplink provider = TBD
Transponder = TBD
KU-Band

Bandwidth = 18 MHz
Transmission Format = DVB-S, 4:2:0
Data Rate = 12 Mbps
Modulation: QPSK/DVB-S
MPEG-4 encoding (MPEG-2 available upon request)
HD 16x9
*C-Band LIMS service is not available.
ΑΝΑΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 22/3/2016


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