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75 OHM RF CABLE
The wire that comes from an off-air antenna
or cable service provider. The end looks like
a hex-shaped nut with a wire sticking
through the middle. It screws onto the
Antenna/Cable threaded jack on the back of
the TV.
300 TO 75 OHM ADAPTER
A small device that connects a two-
wire 300 ohm antenna to a 75 ohm RF jack.
They are usually about an inch long with two
screws on one end and a round opening with
a wire sticking out on the other end.
ANALOG TELEVISION
Standard television broadcasting format in
4:3 picture aspect ratio.
A/V CABLES
Audio/Video cables. Three cables bunched
together—right audio (red), left audio
(white), and video (yellow). A/V cables are
used for stereo playback of videocassettes
and for higher quality picture and sound
from other A/V devices.
A/V DEVICE
Any device that produces video or sound
(VCR, DVD, cable box, or television).
AMPLIFIER
An electronic device that amplifies sound
from a television, CD player, VCR, DVD, or
other Audio/Video device.
ANTENNA
The physical receiver of television signals
sent over the air. A large metal piece of
equipment does not always have to be visible
to be using an antenna.
CABLE
Cable service box. Refers to the descrambler
box cable subscribers use to receive cable
programming signals.
CATV
Programming provided by a cable service.
DIGITAL TELEVISION
High-resolution, cinema-quality television
signals transmitted digitally.
DVI
Digital Video Interface
Accommodates analog and digital interfaces
with a single connector.
COMPOSITE VIDEO
Typical video jack, uses one wire for trans-
porting three-color video signals.
COMPONENT VIDEO
Uses three wires for transporting three-color
video signals. The end result is usually better
video quality.
DELETED
Lets you remove channels from the list that
the end user can scroll through using CH
(Channel) Up/Down.
HDMI
High-definition multi-media interface.
HDTV
High-definition television. Refers to televi-
sion signals that have higher resolution than
ordinary analog TV signals.
HDSTB
High-definition set top box. Refers to a
tuner device that receives high-definition
television signals which have higher resolu-
tion than ordinary analog TV signals.
INPUT
Refers to the input jack that receives a sig-
nal from a TV, VCR, DVD Player or other
Audio/Video device.
JACK
An input or output connector on the back
of a TV, VCR, DVD Player or other
Audio/Video device.
MONO SOUND
Mono (monaural) sound is one channel of
sound. On more than one speaker, all the
speakers play the same audio.
OUTPUT
Refers to the output jack that sends a signal
out of a VCR, DVD, or other A/V device.
PHYSICAL CHANNEL NUMBER
See Note 1.
RGB (Red, Green, Blue)
Connection input or output port available for
producing a video image using three sepa-
rate colors: Red, Green, and Blue.
RS-232
Serial communication port through which
the display panel is controlled.
2ND AUDIO PROGRAMMING/SAP
Second Audio Programming (SAP) is another,
separate audio channel available with some
programming. Choosing SAP often refers to
listening to audio in another language, such
as Spanish or French.
SIGNAL
Picture and sound traveling through a cable,
or over the air, to the TV.
STEREO SOUND
Stereo (Stereophonic) sound refers to audio
that’s divided into right and left sides.
TUNER
Device that picks up the broadcast signal
and turns it into picture and sound.
VIRTUAL CHANNEL NUMBER
See Note 1.
XDS
Extended Data Service: Additional program
information included on the signal provided
at the discretion of the broadcaster.
Note 1
Refer to www.atsc.org for further
information.
Glossary of Terms
A list of definitions for some of the words found in this guide
PAGE 51