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09-Sep-2010

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Maiwei MW-96DM CATV demodulator

Maiwei - MW-96DM

CATV demodulator

Terrestrial channels demodulator: FIF + UIF input, OIRT or CCIR norm, AV output.

Price: 65,00 EURO
*) VAT not included
Availability : Call

Maiwei MW-96DM - mono and stereo Demodulator
Important: Stereo demodulator shall work together with stereo modulator to validate stereo function.

Features
 • Front Panel Control and Easy to Operate
 • Applied Frequency Synthesized Technique
 • Applied CPU to Control Channel Selecting Directly
 • Tuning Accuracy and Swiftly with Frequency Stability
 • Standard Signal Output for Audio and Video.
 • Channel Select Front Panel and LED Display for Input Channel
 • All TV Channels.
 • Suitable for 19" framework
DESCRIPTION
 MW-96DM Demodulator is professional audio/video device. It is specifically designed for use of mono or stereo Modular Head-end Systems of CATV.
 MW-96DM demodulates standard CATV channels. It employs a double conversion tuner for optimum of CATV channels in preparation for re-modulation. The input frequency range is from 45 to 860 MHz. Base-band audio and videos are provided as outputs.
 This Product features rock solid, Frequency Synthesized Technique control. Frequency selection is accomplished via front panel channel up/down buttons with a LED channel readout for easy on-the-fly channel changes. A channel lockout mode is also provided to prevent accidental channel changes.
BLOCK DIAGRAM
 
MW-96DM Block diagram
GENERAL CHARACTERISTICS
 Power Supply   220+10%,50Hz,10VA 
 Dimensions   483x128x44mm 
SPECIFICATIONS
1.RF Characteristics
 Input Channel   DS1 - DS48 
 Return Loss   ≥ 6dB 
 Carrier Level   70dBµV (Typical) 
 50 - 90dBµV(effective) 
 Input Level Adjust   0 ÷ -20dB
2.Video Characteristics
 1. Output Impedance:   75Ω 
 2. Output Level :   1Vp-p 
 3. Ripple in Operating Band :   ≤ ±1.5dB(0.5÷5MHz)
 4. Differential Gain :   ≤ 7% 
 5. Differential Phase :   ≤ 7° 
 6. s/n Ratio :   ≥50dB 
 7. C/L Delay :   ≤40ns 
3. Audio Characteristic
 Output Level :   0dB±10dBmV 
 Audio Output Impedance :   600Ω 
 S/N Ratio :   ≥50Db 
 Nonlinear Distortion :   ≤ 1% 
PANEL ILLUSTRATION
Front Panel
   1. Power Indicator
   2. Channel Down Key
   3. Channel display
   4. Channel Up Key
Rear Panel
Mono demodulator
Stereo Demodulator
   1. Power plug (220Vac In)
   2. Power socket (220Vac Out)
   3. RF Input (F-connector female)
   4. Audio Output (RCA Female) ( 4L and 4R for stereo output)
   5. Video Output (RCA Female)
GENERAL OPERATION
  1. Connect the standard audio and video cables to the audio output and video output socket on the rear panel respectively.
  2. Make sure the RF input level to the demodulator should be 60-80dB V. 70dB V is typical.
  3. When using one modulator only, insert the power plug of the demodulator to a power supply socket directly. When using more than one pieces of demodulators, please insert the first demodulator's power plug into the next demodulator's power socket, and so on. Remember to insert the last demodulator's power plug into a power supply socket.
  4. The demodulator should be well grounded.
NOTICE
  1. Avoid storing in a damp place.
  2. Be sure to operate carefully since the demodulator has no power on/off switch.
  3. Any problem, please resort to the supplier for help.
* Specificatiile pot fi schimbate fara preaviz