A08 - 25.09.2015
VTQ WMS HD - V/G-Mount TX
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» BAS
(„Bild-Austast-Synchron-Signal“ = Picture blanking synchronous signal)
Common name of the monochrome TV picture signal. It consists of the picture information and the blanking
signal.
» BER
(„Bit Error Rate“)
The bit error rate (BER) is the percentage of bits that have errors relative to the total number of bits received in a
transmission. The BER is an indication of how often a package of data has to be retransmitted because of an
error. Sometimes a slower data rate will improve the transmission quality because the BER might be reduced.
» Booster
In this manual it is the name of an amplifier that increases the transmission power to have a larger range.
» CBR
(„Constant Bit Rate“)
Constant Bit Rate is a kind of compression technology. Using constant bit rate means that the quality is altered
to reduce the information to fit the fixed bit rate. Overflowing the available bit rate can lead to lost bits, whereas
the target of this technology is to stay just under the available bit rate. The degree of success in almost filling
the available space is a measure of the quality and efficiency of the compression system.
» COFDM
(„Coded Orthogonal Frequency Division Multiplexing“)
Coded Orthogonal Frequency Division Multiplexing is a modulation scheme which is used by the DVB digital
television system. It allows the use of multiple carriers. Concatenated error correction is integrated. The guard
interval is selectable. That makes the system resistant against multipath fading and burst failures and therefore
the best choice for mobile receivers.
» DVB-T
(„Digital Video Broadcasting - Terrestrial“)
Digital Video Broadcasting – Terrestrial, a transmission scheme for terrestrial digital television. It uses Coded
Orthogonal Frequency Division Multiplexing (COFDM), which spreads the signals over a large number of
carriers to enable it to operate effectively in very strong multipath environments.
» EIRP
(„Effective Isotropic Radiated Power“)
Effective isotropically radiated power is the amount of power emitted by an isotropic antenna. EIRP takes into
account the losses e.g. of connectors and the gain of the antenna. The EIRP is often stated in terms of dBm,
mW or dBW.
A1. Glossary
Glossary