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Adjusts incoming video source baseband level for brightness and channel balance.
Allows changing the modulated channel using select and CH+/- buttons.
Troubleshooting steps for issues where the TV and modulator are not communicating.
Resolving a black screen issue when the TV and modulator are communicating.
Diagnosing and fixing grainy picture quality on local channels.
Troubleshooting grainy modulated channels and cable picture quality.
Solutions for TVs unable to tune modulated channels.
Resolving issues when a cable company box interferes with the signal.
Strategies when the cable company utilizes all available channels.
Adjusting picture brightness and washing out issues.
Addressing issues with a dark modulated picture.
Troubleshooting audio problems like noise or low volume.
Fixing herringbone patterns on the modulated channel.
Troubleshooting horizontal bars in the TV picture.
Addressing vertical bars in the TV picture.
Resolving single local channels with black and white lines.
Troubleshooting flashing at the top or middle of the TV picture.
Diagnosing and fixing picture tearing issues.
Resolving ghosting effects on the TV picture.
General| Category | Modulator |
|---|---|
| Model | E-1200 |
| Type | Digital RF Modulator |
| Input Signal Type | Composite Video, Stereo Audio |
| Video Input Impedance | 75 Ohms |
| Audio Input Impedance | 10 kOhms |
| Audio Carrier Frequency | 4.5 MHz |
| Video Differential Gain | <5% |
| Video Differential Phase | <5 Degrees |
| Audio Total Harmonic Distortion | <1% |
| Power Requirements | 12 VDC, 500 mA |
| Input Level | 1 Vp-p |
| Hum Modulation | <-60 dB |
| Power Supply | External AC Adapter |
| Operating Temperature | 0°C to 50°C |
| Storage Temperature | -20°C to 70°C |
| Output Frequency Range | 54 to 806 MHz |
| Audio Signal-to-Noise Ratio | 60 dB |
| Video Frequency Response | +/- 1 dB (to 4.2 MHz) |
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