| Part Number : NTX-A12860
The Chassis Agile Modulator (NTX-A12860) is one combined agile modulators unit that is developed according to space-saving, durable, and high performance design principle.
It is composed of 12 modulators, 2 amplifiers and one highly efficient switching power supply that are all vertically installed in one 3U sized standard rack.
For each modulator, concentrated power supply, and internal mixing mode are applied to allow system debugging simple and reliable.
The 3U sized standard rack can either be installed on 19-inch cabinet, or is flexible to apply wall-hanging mode.
Each modulator’s channel is displayed by 7SEGEMENT on front panel.
You will easily change channel numbers to set up discretionary headend system within 54~860 MHz.
|
Double frequency conversion, modularized amplification. Video modulation depth, audio deviation, A/V ratio, output level are all controlled by CPU. The switching power supply adopted is applicable to voltage 90~240V. Equipped with built-in mixer, no need to install additional mixer.
Item |
Unit |
Specifications |
| |
Output Frequency |
MHz |
54~ 860 MHZ |
System |
NTSC |
|
Max Output Level |
dB |
≥ 85 |
RF Output Range |
dB |
20 |
V/A Ratio |
dB |
-13~20 |
Broadband Noise |
dB |
-60 |
Frequency Stability |
KHz |
±3 |
Output Impedance |
Ohm |
75 |
Output Reject Loss |
dB |
16 |
Video Mod Depth |
% |
87.5 |
Item |
Unit |
Specifications |
|
Input level for 87.5% |
Vp-p |
1 |
Differential Gain |
% |
≤5 |
Differential Phase |
° |
≤5 |
C/L Delay |
nsec |
≤45 |
Frequency Response |
dB |
±0.75 |
Modulation Range |
% |
72.5~90 |
Video S/N |
dB |
60 |
Item |
Unit |
Specifications |
|
Input Level |
Vp-p |
0.4 |
Input Impedance |
Ω |
10K |
Audio Carrier Frequency |
MHz |
4.5, 5.5,6.0,6.5 |
Deviation |
dB |
|
Pre-emphasis |
Msec |
75 |
Item |
Unit |
Specifications |
|
Power Supply |
V |
90~250 |
Temperature Range |
℃ |
0~40 |
|
