Additional Outlet (A/O):
Receivers other than the primary one can be connected to the satellite
dish allowing other tv's in the home to be on different programs
than the one connected to the primary receiver. An A/O also refers
to a convenience outlet where there is not another receiver and
the tv will show the same programs as the tv connected to receiver.
Audio/Video Jacks:
There are three jacks one for the video, one for the right channel
sound and one for the left channel sound. The audio jacks are necessary
for stereo sound. R/F connectors (coaxial cable) will not provide
stereo from the satellite receiver.
Auto Clock Set (VCR):
Clocks on models with this feature always display the correct time
and never need to be reset. This is a handy feature for anyone who
uses their VCRs to record programs.
Azimuth:
The horizontal direction of a satellite. It would have a different
azimuth in Los Angeles than in Chicago. Since the satellite is over
the equator, wherever you live it will be in the southern sky.
Bandwidth:
Range of frequencies occupied by a signal or allowed by receiving
equipment (basically, what a receiver is capable of receiving).
Baseband:
The raw satellite TV signal before it is re modulated to become
a signal that is suitable for a TV.
Beam:
A satellite transmission pattern. It may be wide, narrow or spot.This
affects the satellites footprint.
Blackouts:
A particular programming service may not be available in certain
areas of the country. Usually because of contractual agreements.
C Band:
Signal frequency range (3.70-4.20ghz).
What is DV?
DBS:
Digital broadcast satellite. This high-powered satellite uses a
Ku-band frequency (12.2 to 12.7 GHz) to deliver programming signals
directly to small (18-inch) dishes installed at viewers' homes.
Digital Audio Broadcasting:
Standard which describes the method of transmitting digital audio.
Digital Compression:
A process of translating video images into a digital code which
takes up less transmission space than the original signal would
have. This allows more channels per satellite transponder:
from four-to-one for live video to eight-to-one for film.
Dolby Digital / AC-3 Compatible:
Dolby Digital provides 6 independent sound track channels through
the optical output jack. When connected to your AC3 compatible home
theater audio set-up, this connection provides Dolby Digital Surround
Sound (when Dolby Digital is part of the programming being viewed).
Dolby Pro Logic:
Dolby Pro Logic (known as Dolby Surround in the theaters) is based
on the use of an amplitude-phase matrix. This is a method of encoding
four channels of information into two tracks of stereo media and
then decoding them back into four channels for playback.
Downlink:
A signals path from satellite to antenna.
DSS:
Specific reference to the DBS system offered by DIRECTV/USSB.
DTH:
Direct to home. Official term used by the Federal Communications
Commission industry to refer to the satellite television and broadcasting
industries.
DVB:
Broadcast standard for digital radio and television, using MPEG
II compression. System offered by Echostar.
Elevation:
How high a satellite is from the horizon.
Feed Horn:
A device which collects the signals at the focus of the satellite
dish and channels them to the LNB.
Fixed Dish System:
Satellite system in which the dish does not have to be moved. DirecTV
and Dish Network are fixed dish systems.
Footprint:
An area of the earth that is able to receive a particular satellite’s
signals. This depends on the satellites beam.
Geostationary:
Satellites orbit the Earth 22,300 miles above the Equator and rotate
at the same relative speed and direction as the Earth's surface.
Therefore, the satellites appear stationary. There are nearly 40
satellites currently in this type of orbit over North America, and
well over 100 around the globe.
Impulse Pay per View:
The ability to buy a particular program on a last-minute decision.
Pushing the "buy" button on the remote control instead
of having to make a phone call.
Infrared Universal Remote Control:
Line of sight remote which will control the satellite receiver and
two to four other infrared units such as TVs, VCRs, DVDs or stereo
amplifiers.
Interactive TV:
An interactive television service that lets you use the enclosed
remote control to access up-to-the-minute news, sports, financial
information, weather, get program trivia, respond to free offers
and shop, all while you watch TV.
IRD (Integrated Receiver Decoder):
A satellite receiver with a built-in decoder for unscrambling subscription
channels. It is usually called the receiver.
KU-band:
Signal frequency range between 11 and 14 GHz. that is often used
with communications satellites.
LNB (Low Noise Block down-converter):
Amplifies received signals and converts them from microwaves to
lower frequency signals which are then sent along a cable to the
satellite receiver. An LNB can be either single or double. A double
LNB is required when more than one receiver is used allowing the
viewing of different channels on other televisions.
Locks & Limits (Parental
Controls):
Allows you to restrict viewing of rated movies (based on the motion
picture rating system) or to lock out entire channels.
Moving Pictures Experts Group (MPEG):
The organization which defined the standards for moving pictures,
like movies.
MPEG I Compression:
Specific data transmission protocol (format) developed by the Moving
Pictures Experts Group (MPEG). MPEG-1 protocol is not as advanced
as MPEG-2 protocol.
MPEG II Compression:
Latest specific data transmission protocol (format) developed by
the Moving Pictures Experts Group (MPEG). It is a more advanced
protocol than MPEG-1 due primarily its all digital transmission
of data at between 4 and 9 megabits/second (Mbit/sec). Several other
enhancements over MPEG-1 are also realized.
Noise Figure:
A measure of the performance (noise contribution) of an LNB in decibels.
The lower the better.
Offset:
Type of dish with the focus and feedhorn below the center of the
dish.
On-screen Program Guide:
This interactive feature allows the user to access and scroll through
complete program listings right on his/her television screen, in
most cases up to a week in advance.
One Touch Recording:
With the touch of one button on the remote, the user can create
multiple time recordings of future programs in the on screen guide.
The satellite receiver will control the VCR, starting and stopping
the recording at the proper times.
Parental Lockout Control:
Allows user to set a password to control access to programming based
on channel, rating or content.
Pay Per View (PPV):
Conditional access service where the user is able to buy one particular
program.
Rain fade:
The loss of signal from the satellite during a heavy rain. This
happens more or less to all DBS systems.
Dish Receiver:
The IRD. Unit which takes signals from a satellite dish and converts
them so that they can appear on TV.
R/F connectors:
Output for coaxial cable (the stuff cable companies use). R/F connectors
will not provide stereo from the satellite receiver.
RG59:
The coaxial cable that is commonly used for cable TV. If a home
already has coaxial cable, it probably is RG59. It is a smaller
gauge than RG6.
RG6:
The coaxial cable recommended by DBS manufacturers. It is a larger
gauge than RG59.
S Video Jack:
Some televisions have an input for a S Video cable. This is better
than audio/video jacks or R/F connectors. It is for the video, not
the sound. All DirecTV and Dish Network receivers have s-video output.
Threshold:
the measure of sensitivity of a satellite receiver measured in decibels
(dB).
Transponder:
Equipment inside a satellite, responsible for receiving a single
uplinked channel and re-broadcasting it back to earth.
UHF Remote:
Ultra High Frequency remote control that can operate the receiver
from another room. The IR (Infra Red) remote needs to be pointed
at the receiver.
Uplink:
A signals path from the earth to a satellite. DirecTV's uplink facility
is located in Castle Rock, Colorado.