IT news
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IT-MARATHON - 2021 has started in TUIT
02 december 2020
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World IT news
02 december 2020
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“Uzbektelekom” presents modern cloud services for the population
30 november 2020
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IT Park to host online programming championship
26 november 2020
CEMC news
31 october 2022
31 october 2022
15 june 2022
FAQ
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Is it required to obtain permission to use the GPS...
No appropriate registration of the permission of the SUE CEM...
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Do I need to re-obtain permits for purchase and in...
According to clause 87 "Regulations on the procedure fo...
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Are there any simplifications of the procedure and...
By the decision of the Republican Council on Radio Frequenci...
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Do I need any documentary, licensing or other desi...
In accordance with the decision of the RCRS No612 of October...
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How to obtain international legal protection from ...
International legal protection of radio frequency assignment...
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What are the main measures for the international l...
- determining the need for and conducting international coor...
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What radio frequency assignments of RES are subjec...
All radio frequency assignments are subject to international...
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What is radio frequency assignment coordination?
the procedure for obtaining the consent of one of the Partie...
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What range is used for FM broadcasting in the Repu...
Тhe 87.5–108.0 MHz
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What bandwidth is used in the DVB-T2 standard?
1,7; 5; 6; 7; 8 and 10 MHz. The Republic of Uzbekistan uses ...
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How many digital TV channels can be broadcast in a...
Depending on the quality of the transmitted image. For stand...
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What is the DVB-T2 standard?
European standard of terrestrial digital television of the s...
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Why is the radio communication in the room unstabl...
A stable indoor connection cannot be achieved since the wall...
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Is it possible to achieve stable communication ins...
There are now special (500 mVt) repeaters that amplify cellu...
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How to increase a coverage zone?
A very big influence on a coverage zone makes transmitting a...
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How far it is audible 5 Watt on VHF?
There is no unequivocal answer to this question. If distance...
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There are lots of free tele-channels in the city, ...
The zone of stirring influence of TV (or radio broadcasting)...
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How can I get a topograpgic map with a scale 1:200...
Question: How can I get a topographic map with a scale1:200...
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Who can help me to null radio-interferences, which...
1. Users of radio-frequency spectrum can make their requests...
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What are the terms for examination of a request?
1. The term for examination of a request begins from a day o...
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Evaluation of H.264/AVC codec (By Thomson firme d...
September 2005y. the 2nd half of 2006y. the 2nd half o...
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Satellite paths
Transponder 36 МHz; bitrate for MPEG-2: 4,4 Мbit/s (ТSC), 18...
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What are the penalties for using and sale of not r...
The resolution of The Cabinet of Ministers of the Republic o...
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What radio-electronic devices do not need any perm...
The list of radio-electronic equipment and high-frequency de...
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What gives transferring to the digital dispersion?...
The main advantages: standing quality at the cost of incr...
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Countries, where DVB-H system was brought to the r...
Albania – national network, in 23.01.2007 was covered more ...
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ETSI standards to DVB-H system
ETSI EN 302 304 V1.1.1 (2004-11) Digital Video Broadcasting...
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Transfer speed of DVB-H system
Receiver type H.264/AVClevel Video resolution Max. spee...
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DVB-T/H transmitting regime
OFDM characteristics Regime 2k 4k 8k Number of sup...
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Opportunities of H.264/AVC standard
Use of script Resolution and frequency frames Transmitt...
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Manufactures of MPEG-4 equipment
Company Equipment Envivio Inc. 4Caster HD3 – THC tran...
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What is the order of acquisition and exploitation ...
Due to the frequently asked questions about the order of acq...
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DVB-H (Digital Video Broadcasting – Handhelds)
DVB-H is aimed for transmitting to handheld terminals the fo...
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History of DVB-H system engineering
DVB-H system – the newest creation of DVB standards The act...
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Motivation of DVB-H engineering
Demand of majority on getting news and video data streams o...
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Characteristic of DVB-H system
Based on DVB-T, full backward compatibility Adds additional...
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Means of providing technical request to DVB-H syst...
Time slicing of datacome for energy conversation in receive...
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Peculiarity of DVB-H system’s work
DVB-H system can work as аn independent broadcasting system ...
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Frequency peculiarities of DVB-H system
Bands: III (174 – 230 MHz), IV (470 – 582 MHz),V (582 – 862...
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Frequency peculiarities of DVB-H system
According to ECC REPORT 4 (Lisbon, January 2002) IV band is...
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Frequency peculiarities of DVB-H system
The option is entered into the standard on system DVB-T for...
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Spectral effectiveness of DVB-H system
In DVB-T/H system can be delivered to mobile terminals of 3...
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Example for QVGA (320x240 pixel.), 25 frame/s, 250...
DVB-H system channels DVB-H the main factors Number of ...
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Time slicing and data carrousel
Instead of continuous data transmission as in DVB-T, in DVB...
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Example of time slicing
If the average speed of basic stream transmitting is 500 kb...
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Model buffered data of hypothetical receiver DVB-H...
1 – transport stream; 2 – transport stream without duplica...
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DVB-H network transmitting
Typical use of DVB-H system – it is IP-data transmitting se...
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Script of development
For the next slides given examples of network configuration:...
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Coding content in H.264/MPEG 4.10 AVC standards
Joint МСЭ-Т/ИСО/МЭК H.264/MPEG-4 Part 10 AVC (H.264/AVC, IS...
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Peculiarities of H.264/AVC
At identical quality of the image standard H.264/AVC demand...
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Transportation to H.264/MPEG 4.10 AVC
Transport level is not specified on MPEG-4 standard. Most of...
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Recommendation of Europe
According to EBU (Tech 3307 “Service Requirements for Free-...
