Drake DMM806 Television Demodulator
Drake DMM806 Television Demodulator
The Drake DMM806 Video Demodulator is a professional quality agile television demodulator that provides an audio and video output from any VHF, UHF, or CATV channels (54 - 806 MHz). The standard single rack-unit design permits convenient pairing with a Drake Professional Video Modulator to perform off-air or CATV channel processing.
- Low cost NTSC demodulator
- Synthesized reception of off-air TV channels 2 through 69, and CATV channels 2 through 125; selection set by a front panel pushwheel switch.
- Fixed 1.0 Vp-p NTSC standard negative sync video output, adjustable audio output level.
- Defeatable de-emphasis for passing stereo and SAP signals to a Drake modulator.
- Wide range AGC.
- Low distortion synchronous detection.
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DMM806 Technical Specifications |
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RF |
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Input Frequency Range: |
54 through 806 MHz, |
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Input Level: |
-10 to +35 dBmV |
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Noise Figure: |
VHF: 8 dB |
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Image Rejection: |
VHF: 65 dB |
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Input Impedance: |
75 Ohms |
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Video |
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Output Level: |
1.0 Vp-p nominal, NTSC standard negative sync |
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Output Impedance: |
75 Ohms |
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Differential Gain: |
Less than 5% |
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Differential Phase: |
Less than 5 degrees |
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L/C Delay: |
125 nanoseconds nominal |
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Audio |
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Output Level: |
300 mV rms ± 10 dB, adjustable with front panel control |
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Output Impedance: |
Less than 500 Ohms, unbalanced |
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General |
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DC Power Requirements: |
+12 VDC @ 120 mA, +5 VDC @ 100 mA |
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Operating Temperature: |
0° to 50° Celsius (32° to 122° Fahrenheit), ambient. |
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Dimensions: |
3.5 inches (89 mm) Height x 1 inch (25 mm) Width x 7.5 inches ( 191 mm) Depth |
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Weight: |
12 ounces (0.43 Kg.) |
Specifications, price, and availability are subject to change without notice or obligation.
| Manufacturer | Drake |
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