BTC Z22 Manual do Utilizador descarregar pdf (Página 35)

Version 02.00, November 2014

Rohde & Schwarz R&S

®

BTC Broadcast Test Center 35

Standard D/K (R&S

®

BTC-K595 option)

Standard D/K

in line with country-specific standard

Vision modulation

modulation

D/K

group delay

precorrection

OIRT – D/K half (can be switched off)

frequency response

< 20 ns (with/without vestigial sideband

filtering)

vestigial sideband

filtering

DK, DK FM2, DK NICAM,

can be switched off

amplitude frequency response

< 0.5 dB (–1 MHz to +5.8 MHz)

(with/without vestigial sideband filtering)

residual carrier

0 % to 30 %, settable in 0.1 % steps

S/N ratio

video

> 60 dB, weighted

Sound modulation

mode

mono, stereo, dual sound, NICAM,

mono/NICAM

modulation of sound carriers 1, 2

modulation mode

FM

frequency deviation

30 kHz (settable)

preemphasis

50 µs/75 µs (can be switched off)

vision/sound carrier frequency spacing

6.5 MHz/6.74 MHz (settable)

vision/sound carrier level spacing

13 dB/20 dB (settable)

pilot tone

in sound carrier 2 (can be switched off)

S/N ratio

sound

> 60 dB, weighted (CCIR)

Video signals

internal video generator

see “Video signal generator”

Audio signals

internal audio generator

see “Audio signal generator”

audio player

see “Audio player”

Standard I (R&S

®

BTC-K595 option)

Standard I

in line with country-specific standard

Vision modulation

modulation

I/I1

group delay

precorrection

UK – I (can be switched off)

frequency response

< 20 ns (with/without vestigial sideband

filtering)

vestigial sideband

filtering

I, I1, can be switched off

amplitude frequency response

< 0.5 dB (–1 MHz to +4.8 MHz)

(with/without vestigial sideband filtering)

residual carrier

0 % to 30 %, settable in 0.1 % steps

S/N ratio

video

> 60 dB, weighted

Sound modulation

mode

mono, mono/NICAM, NICAM

modulation of sound carrier 1

modulation mode

FM

frequency deviation

30 kHz (settable)

preemphasis

50 µs/75 µs (can be switched off)

vision/sound carrier frequency spacing

6 MHz (settable)

vision/sound carrier level spacing

13 dB (settable)

modulation of sound carrier 2

modulation mode

NICAM

vision/sound carrier frequency spacing

6.552 MHz (settable)

vision/sound carrier level spacing

20 dB (settable)

S/N ratio

sound

> 60 dB, weighted (CCIR)

Video signals

internal video generator

see “Video signal generator”

Audio signals

internal audio generator

see “Audio signal generator”

audio player

see “Audio player”

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