MMTS20 Stereo Encoder for Mini-Rack Modulators
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.
|MMTS20 Technical Specifications|
|Output Impedance:||100 Ohms, intended to drive high impedance audio input of paired A/V modulator.|
|Output Level:||10 mV/kHz, ±10%
1.1 Vp-p for a 100% modulated signal
|Input Level range:||0.5 Vp-p to 2 Vp-p|
|Input Impedance:||High impedance, intended to be paralleled with paired A/V modulator.|
|Input Level:||250 mVrms to 2.5V. with front panel adjustment|
|Input Impedance:||40K Ohms, balanced
20K Ohms, unbalanced
|Stereo Performance (Note: System performance is dependant upon paired modulator.)|
|Stereo Separation:||Greater than 20 dB|
|Frequency Response:||within ± 1dB from 40Hz to 12.5KHz|
|Signal to Noise Ratio:||greater than 65 dB|
|Total Harmonic Distortion:||less than 0.25%|
|Spurious Subcarrier:||-50dBc worst case|
|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).|
|DC Power Input:||+12 VDC ±5% @ 150 mA|
|Operating Temperature:||0° to 50° Celsius (32° to 122° Fahrenheit), ambient.|
|Dimensions:||3.5 inches (89 mm) Height x 1 inch (25 mm) Width x 7.5 inches (191 mm) Depth|
|Weight:||10.7 ounces (0.30 kg.)|
Specifications, price, and availability are subject to change without notice or obligation.
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