MODULATOR
MD-AM
I.F. TV. Modulator Vu-meter for a
measures: desviation of audio and video Modulation
Limiters-Compressor: audio and video Group delay
Pre-corrector. Superficial Filter wave
(SAW) | Frontal
Adjust: Carrying audio and I.F. output |
|
| Frontal
taking monitor of I.F. |
| Modular
Construction |
TECHNICAL CHARACTERISTICS
Audio system
MONO
VIDEO INPUT
Connector
Input level
Adaptation
Amplitud answer
BNC female
1Vpp. ± 4dB to 90%(PAL B,G)
> 30 dB
25Hz. a 5MHz. ± 1 dB
VIDEO MODULATION
Carrying frequence of video
Frequence Stability
White range limitators
Group delay(0,1-4,43MHz)
(With pre-corrector and SAW) (fig.2)
2T Amplitude
Line time no lineal
Color Subpcarrying with 20T
Crominance delay
Luminnce (20T) (fig.3)
Crominance gain
Luminance
Voltage noise Snr (w) (fig.4)
Diferencial gain
Diferencial phase (fig.5)
Pole Amplitude Sinchronized
Amplitude Burst
Tilt
K2T Factor (fig.6)
Multiburst (Amp.V.) (fig.7)
38.9 MHz. (PAL standard)
2 p.m.m.
95% modulation (f=1MHz.)
± 50nS
< 4%
< 2%
< 4%
< ± 10nS
± 0.5 dB.
> 60dB.
< 2,5%
< 1.5 º
< 2%
< 4%
± 0.5%
< 2K.
± 0.5%
AUDIO INPUT
Input level
(compressor authomatic)
Frequence answer
BNC Female
-3 a +8dBm.
(const. desviation level 50KHz)
20Hz. a 15KHz. ± 1dB
AUDIO MODULATOR
Sound carrying frequence
Preaccentuation
Desviation on Frequence
Distortion Armonich
Proportion S/N (w) CCIR-ARM
Sinad
I.M.D. (250/8KHz)
33.4MHz. (PAL B,G)
50uS. ± 5uS.
50KHz
< 0.4% a 50KHz.Desv.(F=1KHz)
(PAL standard)
> 60dB (F=1KHz)
> 40dB
> 35dB
OUTPUT CHARACTERISTICS
Connector
Adaptation
F.J. Output Level
F.J. Monitor output level
Audio/Video Output level
Armonichs and Espureas
Intermodulation
BNC Female
> 20dB
0 a + 5dBm (Adjustable on frontal)
- 10dBm
0 a - 25dBm (Adjustable on frontal)
> - 65dB
> 80dB
SPECIFICATIONS
Themperature
Relative humidity
Consumption
Dimension
Weight
-10° C a + 45° C
>95 % a 30 ° C
35 W
Rack 19" 3U.
~ 8 kg
SIGNAL ANSWERS
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
For more information
