64
G
LOSSARY
AND
A
CRONYMS
Glossary and Acronyms
APG
Advanced Program Guide™ the DIRECTV electronic program guide.
ATSC
Advanced Television Systems Committee. Standardization body that developed the
Digital Television Terrestrial formats.
CAM
Conditional access module, usually referred to as the
access card
. A removable,
electronic subassembly providing conditional access control of the subscriber
terminal.
CSR
Customer Service Representative
DIRECTV
DIRECTV is a registered trademark of DIRECTV, Inc., a unit of Hughes Electronics
Corporation.
DST
Daylight Saving Time
DTV
Digital Television
IPPV
Impulse pay per view. A method for ordering service on “impulse” where payments are
required for each program or special event independently.
LNB
Low Noise Block downconverter. Portion of ODU that receives the satellite signal and
converts the signal into L-band frequency of 950-1450 MHz.
MPAA
Motion Picture Association of America. Guild governing rating assignments to movies.
NTSC
National Television Systems Committee. Standardization body that developed the
Analog Television Terrestrial formats.
ODU
Outdoor Satellite Dish Unit. The System that provides signal reception and down
conversion.
OPPV
Order Ahead pay per view. Movie purchases placed by calling a customer service
representative rather than using the on-screen displays. Necessary to purchase
movies when the subscriber does not connect the phone to the Digital Satellite
Receiver.