VK3RTV
DIGITAL ATV

REPEATER STATUS : Fully operational DIGITAL TV Output

Australian Analogue TV Standards

AM (Vestigial Sideband ) TV Standards

 TV System  PAL (B)
 Channel Bandwidth  7 MHz
 Vision Carrier  1.25 MHz above lower edge of channel
 Primary Audio Carrier  5.5 MHz above vision carrier
 Secondary Audio Carrier  242.1875 KHz above primary sound carrier
 Vision Modulation  Negative amplitude modulation ( AM )
 Lines per picture  625 lines, Interlaced 2:1
 Line frequency  15.625 KHz
 Field frequency  50 Hz
 Colour Subcarrier frequency  4.43361875 MHz
 Aspect ratio  4:3
 Horizontal synch pulse amplitude  100% carrier amplitude
 Front porch  1.3 - 1.8 us
 Line blanking interval  11.8 - 12.3 us
 Black & Blanking level  76% peak carrier level
 White level  20% peak carrier level
 Sound Modulation  FM
 Sound deviation  +/- 50 KHz
 Audio pre-emphasis  50 us