Satellite Glossary

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

• half-inch video

There are two types: VHS and Betamax are home use formats. They have very poor resolution. Betacam and MII are the two major broadcast-quality half-inch video formats. This term is commonly used to describe VHS dubs.

• Hertz (Hz)

The number of cycles per second of a sound wave or electromagnetic wave.

• high-definition television (HDTV)

A system with very high resolution. In HDTV, more lines per picture frame are transmitted than is standard, resulting in sharper, more vivid images.

• Home shopping

TV broadcast of goods for purchase, sent directly to a viewer.