DRAKE 806DM Gebrauchsanweisung - Seite 3
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Seite druckenTable of Contents, Specifications, and Description
TABLE OF CONTENTS
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Table of Contents/Specifications/Description
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DESCRIPTION
The DRACOM 806DM is a professional quality agile
NTSC television demodulator that provides an audio and
video output from any VHF, UHF, or CATV channel
(54 - 806 MHz). The standard 1-rack-unit package design
of the 806DM permits convenient pairing with a Drake
rack mount Video Modulator to perform off-air or CATV
channel processing.
The desired off-air VHF or UHF television channel from
2 through 69 or CATV channel from 2 through 125 is
selected by a front panel recessed push button switches.
The 806DM provides a standard negative sync video
output at a nominal level of 1 Vp-p which is adjustable
with a front panel control. Also provided is an audio
output signal, nominal 350 mV, that is level adjustable
with a front panel control.
SPECIFICATIONS
Input Frequency:
Image Rejection:
Input Impedance:
Output Impedance:
AC Power Input:
Operating Temperature:
CHANNEL
LOCK
CHANNEL
ANTENNA
CABLE
UNLOCK
As previously described, channel selection switches,
video output level control, and audio output level control
are located on the front panel. The RF Input is through an
"F" type connector located on the rear panel. The rear
panel Video Output is also an "F" type connector.
Unbalanced Audio Output is provided through a rear
panel connector. The unit is powered through the
attached AC line cord by a nominal 115 VAC, 60 Hz
source of power. A 115 VAC convenience outlet is also
provided.
RF
54 - 806 MHz,
Off-Air: Channels 2 - 69.
CATV: Channels 2 - 125.
Input Level:
-10 to +35 dBmV.
Noise Figure:
10 dB, maximum.
50 dB, minimum.
75 Ohms.
VIDEO
Output Level:
1.0 Vp-p nominal, NTSC
standard negative sync,
adjustable with front panel
control.
AUDIO
Output Level:
350 mV rms nominal,
adjustable.
600 Ohms, nominal.
GENERAL
115 VAC ±10%, 60 Hz, 5 Watts.
0
0
C to +50
0
C, ambient.
Dimensions:
19" W x 1.75" H x 3.125" D.
Weight:
4.5 lbs (2.2 Kg).
Connectors:
RF Input and Video Output are
type F.
Unbalanced Audio Output is
Type "F".
Use adapter for RCA phono.
806DM AGILE NTSC DEMODULATOR
AUDIO
LEVEL
3
VIDEO
LEVEL