Chen Jia Hsin Technology Co., Ltd.
Taiwan Manufacturers, Exporters.
Detail Information
Description :
1. A popular priced agile NTSC modulator.
2. Frequency agility with 82 channel coverage from 54 MHz to 550 MHz.
3. CATV (STD, HRC or IRC) or off-air channel plans selectable from front panel.
4. Front panel control of channel selection, video level, audio level, output level, and A/V ratio.
5. High output power to +55 dBmV.
6. Designed for multiple modulator installations.
7. Emergency Alert System (EAS) ready with IF composite loop.
8. Composite IF loop to accommodate a variety of encryption systems.
9. Audio and Video LED overmodulation indicators.
10. Automatic channel offsets where specified by FCC regulations.
11. SAW filtering to ensure quality performance.
12. External source 4.5 MHz aural input.
13. Defeatable pre-emphasis for use with baseband stereo encoders.
14. Front panel monitor connection at -30dB.
Specification :
SPECIFICATIONS
| RF | |
|---|---|
| Output Frequency Range | 54~550MHz |
| RF Output Level | 55dBmV |
| Output Adjustment | 15dB |
| In-Channel C/N | 60 dB |
| Spurious Output | -60dBc |
| Braodband Noise | -75dBc |
| RF Output Connection | 75 Ohms F-Female |
| Composite IF Loop (Loop output is after SAW filtering) | |
| Visual Carrier Frequency | 45.75MHz |
| Aural Carrier Frequency | 41.25MHz |
| Loop Level | 40dBmv |
| External Subcarrier Input Level (Selectable by internal jumpers) | 37dBmv @-15dB A/V Ratio |
| Loop Input/Output Impedances: | 75 Ohms, F-Female connectors. |
| Video | |
| Input Level for 87.5% modulation | 1Vp-p typically |
| Video S/N | 60dB |
| Video Frequency Response | ±1.2dB |
| Video Input Connection | 75 Ohms F-Female |
| Audio | |
| Input Level for 25 kHz Peak Deviation | 0.5Vp-p |
| Audio Frequency Response | 40 Hz to 15 kHz |
| Audio Input Type | Monaural/MTS Baseband |
| Audio Input Connection | 10K Ohms F-Female Unbalanced |
| General | |
| Operating Temperature | 0° to 50° Celsius |
| Voltage Input | 115 VAC ± 10%, 60 Hz, 18 Watts. |
| Dimensions (W×D×H) | 19" x 11.8" x 1.75" |
Chen Jia Hsin Technology Co., Ltd.
- Taiwan