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Glossary of Technical Terms
 

"DiSEqC" (Digital Satellite Equipment Control)
4-Way (4x1) DiSEqC switch and 2-Way (2x1) DiSEqC switch are the most popular ones in the markets. The 2-Way (2x1) DiSEqC switch will enable you to connect one receiver to two satellite dishes (or LNBFs); While the 4-Way (4x1) DiSEqC switch will enable you to connect one receiver to four satellite dishes (or LNBFs)
 
"LNB"
Low-noise block downconverter.
 

"Satellite Dish"
A satellite dish is a type of parabolic antenna designed with the specific purpose of transmitting signals to and/or receiving from satellites. A satellite dish is a particular type of microwave antenna . Satellite dishes come in varying sizes and designs, and are most commonly used to receive satellite
television.
 

"DVB-S"

Digital Video Broadcasting — Satellite, an open standard designed for satellite digital TV by the Digital Video Broadcasting Project.
 
"Video Broadcast Standards"
   

Most countries around the World use one of three main Television Broadcast Standards.These three main standards are NTSC, PAL and SECAM. However, each standard is incompatible with the other. For example, a video recording made in the UK could not be played on US standard VCR's or shown on the TV.

    1, NTSC
    The first colour TV broadcast system was implemented in the United States in 1953. This was based on the NTSC - National Television System Committee standard. NTSC is used by many countries on the American continent as well as many Asian countries including Japan. NTSC runs on 525 lines/frame.
   
SYSTEM
NTSC M
Lines/Field
525/60
Horizantal Frequency
15.734 kHz
Vertical Frequency
60 Hz
Colour Subcarrier Frequency
3.579545 MHz
Video Bandwidth
4.2 MHz
Sound Carrier
4.5 MHz
    2, PAL
    The PAL - Phase Alternating Line standard was introduced in the early 1960's and implemented in most European countries except for France. The PAL standard utilises a wider channel bandwidth than NTSC which allows for better picture quality. PAL runs on 625 lines/frame.
   
SYSTEM
PAL B,G,H
PAL I
PAL D
PAL N
PAL M
Line/Field
625/50
625/50
625/50
625/50
525/60
Horizontal Frequency
15.625 kHz
15.625 kHz
15.625 kHz
15.625 kHz
15.750 kHz
Vertical Frequency
50 Hz
50 Hz
50 Hz
50 Hz
60 Hz
Colour Sub Carrier Frequency
4.433618 MHz
4.433618 MHz
4.433618 MHz
3.582056 MHz
3.575611 MHz
Video Bandwidth
5.0 MHz
5.5 MHz
6.0 MHz
4.2 MHz
4.2 MHz
Sound Carrier
5.5 MHz
6.0 MHz
6.5 MHz
4.5 MHz
4.5 MHz
    3, SECAM
    The SECAM - Sequential Couleur Avec Memoire or Sequential Colour with Memory standard was introduced in the early 1960's and implemented in France. SECAM uses the same bandwidth as PAL but transmits the colour information sequentially. SECAM runs on 625 lines/frame.
   
SYSTEM
SECAM B,G,H
SECAM D,K,K1,L
Line/Field
625/50
625/50
Horizontal Frequency
15.625 kHz
15.625 kHz
Vertical Frequency
50 Hz
50 Hz
Video Bandwidth
5.0 MHz
6.0 MHz
Sound Carrier
5.5 MHz
6.5 MHz
     
    "Set Top Box"
    A device that connects to a TV and some external sources of signal, and turns the signal into content then displayed on the screen.
     
  For other information,you're warmly welcome to contact us.
    support@flystar-digital.com
 
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