Cisco NTSC 9825M 9825S 50-870 MHz Modulators w 9815 Integrated Stereo Enc Ficha De Dados
Pulsar MKII (MN) – TV Modulator
3
Specifications – continued
Typical Signal Specifications
Audio
Amplitude response
Amplitude response
0.5 dB (between 30 Hz to 15 kHz)
Distortion at 50 kHz dev.
£ 0.5%
S/N at 50 kHz dev.
³ 65 dB
Wideband mode
30 Hz – 100 kHz
£ 1 dB
Video
DC restoration
DC restoration
Sync tip or backporch
Luminance bar amp.
£ ± 1%
K2T
£ ± 2%
Luminance non lin.
£ ± 1%
Chrom. Lum. Delay
£ ± 25 ns
In band group delay tolerance
£ ± 35 ns
Chrom. Lum. Intermod.
£ ± -1%
Differential gain
£ ± 2%
Differential phase
£ ± 1°
Video S/N
³ 70 dB
Option Related Specifications
Korean two carrier stereo
Soundcarrier freq
Soundcarrier freq
41.25 and 41.0258 MHz
Amplitude response
0.5 dB (between 30 Hz to 15 kHz)
Distortion
£ 0.5%
S/N at 25 kHz
³ 55 dB
Crosstalk at 1 kHz
³ -36 dB (stereo)
³ -65 dB (dual sound)
BTSC stereo
Amplitude response
Amplitude response
± 0.5 dB (between 100 Hz to 14 kHz)
Distortion
£ 1%
S/N
³ 60 dB
Separation (at 10% EIM)
< 100 Hz:
³ 26 dB
100 Hz to 8 kHz:
³ 30dB
8 kHz to 14 kHz:
³ 26 dB
IF loops (vision before SAW and sound IF loop)
Connector
Connector
F-type, 75
W
Input & output levels
IFv : 46 dBmV
IFs : 34 dBmV
Aux IF input
Connector
Connector
F-type, 75
W
Return loss
³ 18 dB
Input level
30 to 45 dBmV (AGC)
Switching
Manual or automatic
Intercarrier input
Connector BNC,
Connector BNC,
75
Return loss
³ 20 dB
Input level
37 to 50 dBmV (AGC)
Main scrambled, Aux unscrambled video input
Coupling
Coupling
main DC
coupled
aux
AC coupled and clamped
DC input level range
main
Backporch at ± 0.5 V