Magazine:
Review contents:
• Equipment for Satellite Transmission of the TV Signal

• The Decisions from "Broadcast Arsenal"
• The Equipment of the Continental Microwave Company
• The Mobile Cellular Receiving Transmitting Antenna of Ku Diapason MAS 150 M
• The Wideband System of Data Transfer through the Satellite
• The Swe Dish Internet Terminal
• System of guaranteed data delivery over satellite channel
625 Content: 2002 : #5

The Swe Dish Internet Terminal
By Andrew Vasiljev

What is the Swe Dish Internet terminal for the mobile connection from the remote parts of the world where besides the satellite connection it is impossible to form any other channel?

The Swe Dish Fly Away/Drive Away Internet terminal allows setting the wide band connection with the Internet without the use of the earth infrastructure, it is independent from the geographical position. It makes the mutual Internet services available and significantly increases the amount of the potential information users.

If to take a detailed look then the opportunities of the terminal doesn't limit by the organization of the channel of connection with the Internet. The terminal allows transferring the live video and sound accompaniment from the place of the real event on-line to the terminal users. The terminal can be used for the broadcasting of the concerts, festivals or sport games. The organization of voice transfer above the IP for the connection with the local network videoconference connection or the unfolding of the temporary ISP site for the geographically remote sites is possible.

Compact Swe Dish IPT
Suitcase terminal

The Internet terminal is build on the base of the data transfer technology by the TCP/IP protocol in the Internet or the interanet and at the same time might transfer the video audio information in the traditional formats DSNG, DVB, MPEG-2. The equipment of the system in the conditions of DAMA control is foreseen what provides the automatic access and the division of the transmission band on the request. The DAMA system allows controlling of the multi-channel terminal to the client increases the efficiency of the use of the transmission band and decreases the spendings on the rent of the satellite segment.

All the IP Drive Away systems can be fully or partly automated for the comfort of the operators' work. The ECM "Easy Control and Observation" modules allow forming the configuration of the satellite channel in advance.

Swe Dish IP Drive Away terminal

The Federal Committee of the USA (FCC) recommended this antenna to the use without any restrictions for the operation with the satellites that are distant from each other on 2°.

The main parameters:

  • IP connection at the speed of up to 2 Mbit/sec;
  • DSNG service up to 10 Mbit/sec;
  • the video compression MPEG-1, 2, 4;
  • the sound compression WMA or MPEG-2 of I and II levels;
  • DAMA;
  • duplex simplex connection;
  • automatic unfolding of the antenna;
  • support of the ETSI/TBR030 and BZT/BAPT protocols;
  • the transfer conditions SCPC or MCPC;
  • the modulation shape QPSK or 8-PSK;
  • the flow of video signal through the IP, Internet access, e-mail and files transfer by the ftp protocol.

The main characteristics:

Size, cm 55 - 40 - 23
Weight, kg 35
The power source accumulator battery of 12/24 V
The bearable velocity of air during the operating, m/sec about 25, gusts up to 30
The operating temperature conditions -30 ° ...+50 ° C
Humidity 0%...100% with the condensation
Solar radiation W/m 2 1000

The entrances

Video Sound Dta
DV Stereophonic asymmetrical (RCA) Ethernet 10/100 BaseT (RJ-45)
SDI symmetrical (XLR)  
Y/C Digital entrances AES/EBU (XLR)  

Antenna's parameters

The antenna's type the elliptical antenna of the Gregory type
with the double reflector, 90 cm
Polarization two port of the linear polarization
The transfer frequency, GHz Ku diapason 14,0...14.50
The strengthening of the transfer at the frequency of 14.25 GHz, dBr 42.2
The frequency of receiving, GHz 10.7...12.75
The strengthening of the receiving at the frequency of 11.7 GHz, dBr 40
The temperature storm of the antenna at the 20 ° , dB/K 19.7
The suppression of the cross- polarization, dB > 35

The characteristics of the antenna's unfolding

Rotation at the azimuth ± 183°
The setting of the place angle 5°...90°
The setting of the polarization > ± 90°
Unfolding and folding of antenna Automated, controls by the block
of the antenna control (ACU)

The AT&T Trade Broadcast Company.

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