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- DIRECTV®
- The concept of direct TV viewing became possible
with the ability to scramble the signals from a satellite dish in the earth’s hemisphere.
You have come to the right place if you are an avid TV viewer.
1. C-band: the older huge dish which is 7 to 12 'feet' in diameter and needs to be firmly
mounted on the ground; and also needs pivoting hardware as it adjusts itself to receive the signals. Of late, the
cable TV companies scrambled signals to limit viewing only to their paid subscribers. As a result, we are unable
to receive direct TV signals without reprogrammed access cards.
2. DIRECTV offers an 18/24 inch elliptical dish to simultaneously receive analog and digital
signals from two of DIRECTV's four satellite dishes. It provides over 200 channels.
After the DIRECTV System is installed - a process that includes aiming the dish at the satellites - no adjustment
is necessary to change programming because the satellites remain in the same location in the sky. The dish never
has to track the satellites, so there's no waiting for the picture to come in and little maintenance required.
Click for current DIRECTV offer.
Click for current DISH Network offer.
- To gather programming content, ensure its digital
quality, and transmit the signal up to the satellites, DIRECTV created two of the most sophisticated digital broadcast
centers in the world — in Castle Rock, Colorado, and Los Angeles, California. Programming comes to the broadcast
center from our content providers (CNN, ESPN, etc.) via satellite, fiber optic cable and/or special digital tape.
Most satellite-delivered programming is immediately digitized, encrypted and uplinked to the orbiting satellites.
Some programs are copied to professional video servers by the broadcast centers' state-of-the-art automation equipment
to be broadcast later.
The satellites retransmit the signal back down to each customer's DIRECTV satellite dish. Before any recorded programs
are viewed by customers, technicians use sophisticated post-production equipment to view and analyze each tape
to ensure audio and video quality. Professional video layout servers have playback of a program triggered by a
computerized signal sent from the broadcast automation system. Back-up video playout servers ensure uninterrupted
transmission at all times.
If you're familiar with multimedia computers, you may have heard of MPEG, which stands for Moving Pictures Experts
Group. MPEG is a technology that can compress a moving image so it takes a tiny fraction of the space it normally
would for transmission. Uncompressed digital images can be enormous; about ten or twenty seconds would fill up
the hard drive on a home computer. Even compressed, digital moving images are very large.
Consider this comparison: Your telephone modem can transmit information at up to 56 thousand bits per second. At
DIRECTV, each of our transponders on the DIRECTV 1-R and DBS-2 satellites can send about 30 million bits of information
per second to a DIRECTV System, or more than 500 times what a normal PC modem can handle. This data transmission
rate enables DIRECTV to retransmit detailed moving digital video signals to subscribers. DIRECTV programming and
all DIRECTV Receivers employ MPEG-2 technology, the emerging world standard for digital broadcasts including Dish
TV.
Click for current DIRECTV
offer.
Click for current DISH Network offer.
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