Glossary - Philips SDV7220/12 User Manual

7 Glossary

A
Amplifier
A device, either a single stage or a large scale
circuit with multiple stages for creating gain, i.e.
it makes small signals larger.
Antenna
A device, such as a rod or wire, which picks up
a received radio frequency signal or radiates a
transmitted RF signal.
C
Coaxial
A single copper conductor, surrounded with
a layer of insulation, covered by a surrounding
copper shield and finally, an insulating jacket.
An unbalanced transmission line with constant
impedance. In audio, this type is commonly used
for low level, line signals terminated in RCA
connectors.
F
Female connector
A female connector is a connector attached to
a wire, cable, or piece of hardware, having one
or more recessed holes with electrical terminals
inside, and constructed in such a way that a
plug with exposed conductors (male connector
) can be inserted snugly into it to ensure a
reliable physical and electrical connection.
H
HDTV (High-Definition Television)
It is a digital television broadcasting system with
higher resolution than traditional television
systems (standard-definition TV, or SDTV).
HDTV is digitally broadcast; the earliest
EN
10
implementations used analog broadcasting, but
today digital television (DTV) signals are used,
requiring less bandwidth due to digital video
compression.
M
Male connector
A male connector is a connector attached
to a wire, cable, or piece of hardware, having
one or more exposed, unshielded electrical
terminals, and constructed in such a way that it
can be inserted snugly into a receptacle (female
connector) to ensure a reliable physical and
electrical connection .
U
UHF (Ultra high frequency)
In radio or TV broadcasting: it is the frequency
range of electromagnetic waves which lies
between 300 MHz and 3 GHz (3000 MHz).