GDM-006 模拟调制器
MTCM-45This MTCM-45 is a professional quality channelized heterodyne audio/video modulator with adjacent channel capability. The channel can be easily re-adjusted into the other channel in its group. Lo band, Mid band, Hi-band, Super band, Hyper band and Ultra band by changing the setting of oscillator dip switch and the returning of output filter. The PLL oscillator with microprocessor can control the output frequency to meet F.C.C required accuracy and off-setting. This modulator accepts standard polarity(sync negative) video in the range of 0.7V to 2.6V p-p.
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| Place of Origin:Guangdong,China | |
| Model Number:GDM-006-2(MTCM-45) | |
| RF | |
| Output Channels | CATV 2-135, UHF 14-69 |
| Output Level | 45dBmV (min) |
| Range: | 12dB (Adjustable) |
| A/V carrier ratio | -11dB to -22dB (Adjustable) |
| Visual Carrier Stability | ±5 KHz |
| Aural Carrier Offset | ±4.5MHz |
| Aural Carrier Stability | ±10 kHz |
| Spurious Output (dBc) | -60 dBc |
| C/N Ratio (in-band) | -60 dBc |
| Broadband Noise (dBc) | -95 |
| VIDEO | |
| Min Video Input | .5Vp-p |
| Frequency Response | ±1.7dB (30Hz to 4.2MHz) |
| Video S/N | 60dB |
| Hum Ratio | -60dB |
| Differential Gain | ±5% |
| Differential Phase | ±5 degrees |
| Group Delay | 75nsec |
| AUDIO | |
| Input Requirements | 500mV (25 kHz dev) |
| Input Impedance | 10kΩ |
| Frequency Response | ±1.5 dB (50Hz-15kHz) |
| Distortion (THD) | 1% |
| Pre-Emphasis | 75usec (Selectable) |
