¡ö Adjacent Agile Frequency Modulator TZJ860-B
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| Brief Introduction
More are more programs are being added into existing CATV system, which requests addition of modulators. To meet such demand, JIUZHOU develops the modulator TZJ860-B which is of adjacent and has agile frequency output.
TZJ860-B adopts high performance modulating IC, and employs a microprocessor unit to monitor working parameters & enable control/configuration. Working parameters and status could be viewed on the LCD display built on front panel. Output frequency, output RF level and A/V ratio are configurable.
Front Panel and Rear Panel
Product Features
- Adjacent modulator with agile frequency output.
- 47~863MHz output frequency range.
- SAW filtered, providing good differential gain and differential phase performance.
- Built with IF input and IF output.
- PLL technology for both RF Local Oscillator and audio, ensuring good stability and high accuracy.
- Employs a microprocessor unit to monitor and control working status/parameters: (1) Output frequency configurable. (2) Output frequency deviation adjustable, 0.125MHz/step. (3) Accurate control over RF output level and A/V ratio, 0.5dB/step.
- LCD display built on front panel to show operating menu and working status/parameters.
- Standard 19’ 1RU chassis.
Technical Specifications
RF Output |
Unit |
Specifications |
Frequency Range |
MHz |
47~862MHz |
Output Frequency Accuracy |
KHz |
±5 |
Output Level |
dBμV |
95~115dBμV continuously adjustable |
Test Point |
dB |
-30 |
Spurious Suppression |
dB |
≥60 |
Video-Audio Separation |
KHz |
6500 ±5 (PAL D/K) |
V/A Ratio |
dB |
10~20 continuously adjustable |
Output Reflection Loss |
dB |
≥12 |
Connector Type |
- |
F-female |
IF Input and Output |
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|
IF Output Level |
dBμV |
90 ±2 |
IF Input Level |
dBμV |
90 ±2 |
Connector Type |
- |
F-female |
IF could be turned on/off under operating menu. |
Video |
|
|
Input Level |
Vp-p |
≥0.7 |
Input Impedance |
Ω |
75 |
Modulation Depth |
- |
10~100% continuously adjustable |
Differential Gain |
- |
≤5% |
Differential Phase |
° |
≤5 |
Chrome-Luminance Delay |
ns |
≤45 |
Frequency Response |
dB |
≤2 |
K Coefficient |
- |
≤4% |
S/N |
dB |
≥50 |
Connector Type |
- |
RCA |
Audio |
|
|
Input Level |
dBm |
0 ±6 |
Input Impedance |
Ω |
≥10K (imbalance) |
Pre-Emphasis |
μs |
50 |
Distortion |
- |
≤0.5% |
Frequency Response |
dB |
≤1.5 |
S/N |
dB |
≥55 |
Connector Type |
- |
RCA |
Electrical |
|
|
Power Supply |
V |
AC 110V or AC 220V |
Power Consumption |
W |
≤11 |
Environmental |
|
|
Working Temperature |
°C |
0~+40 |
Storage Temperature |
°C |
-10~+50 |
Mechanical |
|
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Dimensions |
mm |
483×330×44 |
Net Weight |
kg |
4.2 |
Specifications subject to change without notice!
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