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Demodulator - A receiver circuit which extracts or 'demodulates' the 'wanted' signals from the received carrier.

 

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Back to Section One/Demodulators

806DM Agile NTSC Video Demodulator
 
 

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806DM AGILE NTSC VIDEO DEMODULATOR
 Channel Removal Filter

The Dracom 806DM Video Demodulator is a professional quality agile television demodulator that provides an audio and video output from any VHF, UHF, or CATV channels (54 through 806 MHz). The standard one rack-unit design permits convenient paring with a Drake or Dracom Professional Video Modulator to perform off-air or CATV channel processing.

  • Low cost NTSC demodulator.

  • Receives off-air VHF and UHF television channels 2-69 or CATV channels 2-125.

  • Easy-to-read 3 digit channel display.

  • Secure, recessed, front panel push button channel switches and lock function to reduce the possibility of accidental channel change.

  • Nominal 1.0 Vp-p standard negative sync video output, adjustable level.

  • Adjustable video and audio output levels.

  • Retains channel settings after power loss.

806dmrear.GIF (13481 bytes)

806DM Agile NTSC Video Demodulator Technical Specifications

RF

Input Frequency
Range:

 54 through 806 MHz,
Off-Air channels 2 through 69,
CATV channels 2 through 125.

Input Level:

 -10 to +35 dBmV

Noise Figure:

 10 dB maximum

Image Rejection:

 50 dB minimum

Input Impedance:

 75 Ohms
Video

Output Level:

 1.0 Vp-p nominal, NTSC standard
negative sync, adjustable with front
panel control.

Output Impedance:

 75 Ohms
Audio

Output Level:

 350 mV rms nominal, adjustable,
unbalanced

Output Impedance:

 600 Ohms nominal
General

Power Requirements:

 115 VAC ± 10%, 60 Hz, 5 watts

Operating Temperature:

 0° to 50° Celsius, ambient.

Dimensions:

 1.75" (h) x 19" (w) x 4" (d)

Weight:

 4.5 lbs.

Connectors:

 RF input, video output, and unbalanced
audio output are all type "F". Use
adapter or RCA phono.

Specifications, price, and availability are subject to change without notice or obligation.
DRACOM is a trademark of the R.L. Drake Company