Specifications

Benhur Corporation – Multidyne, International Sales
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The 200 MHz Band-Width of the WVDA-250 DA is ideal for the
distribution of Wide-Band Composite Video, IF Video and Audio
Car
riers and High Speed Data.
The unit can distribute signal over 50 Mega Bit/Sec Data including
DS3 Telephone Compressed Digital Video.
The unit includes a differential loop-through input and eight outputs
with a front panel video presence LED.
The DA features Post-Equalize 0-500 feet or Pre-Equalize 0-200 feet
of 8281 type cable with exceptional accuracy and Back-porch clamp
with hum cancellation.
The clamp circuit in the FAST mode will remove differential mode
hum from the video signal on a line by line basis.
Applications include the distribution of IF Video and Audio Carriers,
HDTV, Computer Graphics, DS3, DS1 and Digital Data.
The modular design is compatible with the MULTIDYNE UTIL-200
and the Grass 8500/8800/8900 trays.
200 MHz Wide Band Video & DS-3 Data DA with 500 Ft.
Equalizer, Back Porch Clamp, 1x8, Modular Card
Specifications
WVDA-250
:
Input
Type: 2 BNC Loop-through
Impedance: 75 Ohms
Return Loss: > 38 dB up to 5 MHz
Output
Type: 8 BNC
Impedance: 75 Ohms
Return Loss: > 38 dB up to 5 MHz
Performance
Conforms to the 44.736 Mb/s DS3 specifications
Bandwidth, 3 dB: 200 MHz
Frequency Response:
10 Hz to 5 MHz: +/-0.05 dB
5 MHz to 10 MHz: +/-0.1 dB
10 MHz to 40 MHz: +/-0.25 dB
40 MHz to 80 MHz: +/-0.5 dB
Post-Equalization Range: 0 - 500 Ft of 8281 cable.
Pre- Equalization Range: 0 - 200 Ft of 8281 cable.
Equalization Accuracy:
0.05 dB/dB of loss to 10 MHz;
0.1 dB/dB of loss 10 MHz to 40 MHz;
0.2 dB/dB of loss 40 MHz to 90 MHz.
Differential Gain: <0.2 %.
Differential Phase: <0.2°.
Line or Field Tilt: <0.5 %.
Signal to Noise: > 80 dB.
Common Mode Rejection (60 Hz): >65 dB.
Power consumption, MAX: 2 Watts
WVDA-250
Distribution Amplifiers, Automatic Gain, EQ