Drake MMTS20 Stereo Encoder
Drake MMTS20 Stereo Encoder
The R.L. Drake MMTS20 Stereo Encoder is part of the Drake Mini-Rack family designed to optimize rack space. The MMTS20 is an MTS stereo encoder which accepts left and right audio inputs and generates a composite BTSC format stereo signal. The composite signal is applied to the audio input of a compatible audio/video modulator . The modular design permits convenient pairing with a mini-rack modulator such as the VMM600, VMM806, or VMM806AG in a multiple unit rack configuration.
- High quality, economical MTS stereo encoder
- Greater than 20dB stereo separation.
- Convenient front panel audio level control and indicator permit setting of proper audio levels.
- Front panel test tone switch allows easy calibration of stereo separation and minimizes installation time.
- Pilot lock indicator verifies that the encoder is properly synchronized.
- Modulators, rack mount and power supply sold separately.
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MMTS20 Technical Specifications |
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Composite Output |
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Output Impedance: |
100 Ohms, intended to drive high impedance audio input of paired A/V modulator. |
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Output Level: |
10 mV/kHz, ±10% |
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Video Output |
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Input Level range: |
0.5 Vp-p to 2 Vp-p |
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Input Impedance: |
High impedance, intended to be paralleled with paired A/V modulator. |
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Audio Output |
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Input Level: |
250 mVrms to 2.5V. with front panel adjustment |
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Input Impedance: |
40K Ohms, balanced |
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Stereo Performance (Note: System performance is dependant upon paired modulator.) |
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Stereo Separation: |
Greater than 20 dB |
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Frequency Response: |
within ± 1dB from 40Hz to 12.5KHz |
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Signal to Noise Ratio: |
greater than 65 dB |
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Total Harmonic Distortion: |
less than 0.25% |
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Spurious Subcarrier: |
-50dBc worst case |
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Test Tone |
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Frequency: |
10.396kHz ±50Hz |
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Amplitude: |
0.5Vp-p ±10%; all output levels are calibrated to the level of this tone and it is used to set system audio levels for proper stereo operation. The paired A/V modulator audio response must be set for "Flat" operation (pre-emphasis defeated). |
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General |
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DC Power Input: |
+12 VDC ±5% @ 150 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: |
10.7 ounces (0.30 kg.) |
Specifications, price, and availability are subject to change without notice or obligation.
| Manufacturer | Drake |
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