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MESECAM stands for Middle Eastern Secam. MESECAM is not a broadcast standard. It is a VCR “standard” by which the color under process in VCR’s is done by subcarrier shift instead of by frequency division. This means that an original Secam recording (frequency division) does not play back in a MESECAM player.
MESECAM uses an AM subcarrier and SECAM uses FM subcarrier. When MESECAM records a color signal onto VHS or Betamax video tape, the luminance signal is recorded in its original form (albeit with some reduction of bandwidth) but the chrominance signal of about 4.4...
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360 views | Posted in NTSC, PAL, SECAM | Print
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There are 3 main analog video standards in use around the world.
• PAL (Phase Alternating Line)
• NTSC (National Television System Committee)
• SECAM (Séquentiel Couleur à Mémoire—Sequential Color with Memory)
Each standard is incompatible with the other two. Also, the equipment that demodulates the signal must be formatted for that signal.
Generally NTSC is used in North America, most of the countries in South America and Japan. PAL is the format for the UK and most...
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Like PAL, SECAM also has 625 scan lines and is based on 50 Hz. SECAM uses two color difference signals and modulates them onto alternate lines, and through a built in delay both are available at the same time. This eliminates phasing, and with FM transmission, and color recovery so good, saturation was unnecessary.
While NTSC and PAL transmit the luminance and chrominance signals simultaneously, SECAM transmits luminance continuously and generates only one of the two chrominance signals on any given line. The frame rate is 25 frames per second (It has a field rate of fifty fields per...
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The following countries use the SECAM system for television broadcasting.
Africa
• Benin
• Burkina Faso
• Burundi
• Central African Republic
• Chad
• Congo-Brazzaville
• Congo-Kinshasa
• Côte d’Ivoire
• Djibouti
• Equatorial Guinea
• Egypt (Simulcast in PAL-B/G)
• Gabon
• Libya (Simulcast in PAL-B/G)
• Madagascar
• Mali
• Mauritania
• Mauritius
• Morocco
• Niger
• Rwanda
• Réunion (France)
•...
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There are five varieties of SECAM:
1. French SECAM (SECAM-L)
French SECAM (SECAM-L) is used only in France, Luxembourg (only RTL9 on CH 21 from Dudelange) and Tele Monte-Carlo Transmitters in the south of France.
2. SECAM-B/G
SECAM-B/G is used in the Middle East, former East Germany and Greece.
3. SECAM D/K
SECAM D/K is used in the Commonwealth of Independent States and Eastern Europe (this is simply SECAM used with the D and K monochrome TV transmission standards).
4. SECAM-H
Around...
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SECAM, also written SÉCAM (Séquentiel couleur à mémoire, French for “Sequential Color with Memory”), is an analog color television system first used in France. A team led by Henri de France working at Compagnie Française de Télévision (later bought by Thomson) invented SECAM. SECAM uses the same resolution as PAL (625 lines) but transmits the color information sequentially: R-Y on one line and B-Y on the next.
SECAM is used sparingly around the world and can be found in France, parts of Greece, Eastern Europe, Russia, and Africa. It is, historically, the first European...
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interesting info 
