Mini Modulador Ágil MATCM-45 CH 2/135
The MATCM-45 is a microprocessor controlled rebroadcast quality, phase locked loop synthesized, frequency agile CATV/TV television modulator. The double conversion and superior SAW filtering provides adjacent channel compatibility and spurious free output. The MATCM-45 provides 45dB output level from 50 to 864MHz in-cluding CATV and TV frequencies. The channelization configuration can be changed by the up/down buttons located on the front panel.
Features
- Double heterodyne conversion.
- 45dBmV minimum @50-864MHz.
- Automatic band splitting filters for superior carrier to noise ratio.
- SAW filtered.
- Supports TV, CATV, frequency and lock function.
- FCC frequency offset with automatic setting.
- Pre-emphasis defeat switch accessible from side panel for the insertion of composite BTSC stereo signal.
SPECIFICATIONS
| RF | |
| Output Channels: | CATV Ch 2 ~ 135 – TV UHF Ch 14 – 69 |
| Output Level: | 45 dBmV min. with 10dB level control |
| Output Impedance: | 75 Ohms |
| Output Frequency Stability: | +/- 2KHz |
| Audio/Video Ratio: | -11 ~ -30 dB |
| Spurious Level: | -60 dBc |
| C/N (In-Band): | 60 dBc |
| C/N (Out-Of-Band): | > 60 dB |
| Audio | |
| Input Level: | 0.5 V p-p for 25 KHz peak deviation |
| Input Impedance: | 10K Ohms RCA jack |
| Preemphasis: | 75 microsecond |
| Flatness: | 1.5 dB (15 Hz to 15 KHz) |
| Video | |
| Input Level: | 0,8 V p-p minimum for 87.5% modulation |
| Input Impedance: | 75 Ohms, F connector. |
| Frequency Response: | ±1.2 dB, 30 Hz to 4.2 MHz |
| Input Level Range: | +0.7 Vpp ~ 1.4 Vpp |
| Differential Gain: | <5% |
| Differential Phase: | <5° |
| Operating Temperature: | 0 ° to 50 °C |
| Power Input: | 5 VDC @ 0.4A, 12 VDC @ 0.25A |
