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Home > Video Line Corrector > VIDEO LINE CORRECTOR (BH74BB)

VIDEO LINE CORRECTOR (BH74BB)

bh74bb The BH74BB has been designed as a repeater unit for use with twisted pair cables so that high quality pictures may be transmitted over long distances. Suitable for colour or monochrome video signals the unit will equalise the incoming cable losses to a maximum of 45dB at 5MHz. The Gain, Low frequency lift, Medium frequency lift, High frequency lift, Input impedance and Input/output balance are all independently adjustable. Internal surge protection is fitted as standard on all units.

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TECHNICAL
DESCRIPTION
INPUT SIGNAL REQUIREMENTS
Composite video using colour / monochrome signals or other wide band signals within a frequency bandwidth of
30Hz to 5MHz.
INPUT SIGNAL AMPLITUDE
Nominal 2 volts peak to peak.
NOMINAL OUTPUT AMPLITUDE
1 volt peak to peak, terminated in 75 ohms.
AT UNITY GAIN Differential Phase <3 degrees / Differential Gain <3%.
INPUT IMPEDANCE
Factory set at a nominal 150 ohms (adjustable between
approx. 70 and 230 ohms).
OUTPUT IMPEDANCE
150 ohms (balanced).

INPUT/OUTPUT CONNECTIONS

Miniature binding posts.
CORRECTOR RESPONSE IN BAND
Adjustable to compensate for frequency dependent cable
losses to a maximum of 45dB at 5MHz.
LIFT RESPONCE
7 lift controls are fitted: GAIN, LF, MF, HF1, HF2, HF3 and HF4.
These controls allow individual adjustments within the video
passband
INPUT/OUTPUT BALANCE
The balance of both the input and output signals may be
adjusted to obtain the best picture.
AC INPUT CONNECTOR
IEC type 3-pin socket
POWER REQUIREMENTS
230V or 110V AC at 50Hz..
POWER CONSUMPTION
Approximately 6 watts at 230V 50Hz.
OPERATING TEMPERATURE RANGE
-10ºC to +40ºC
WEIGHT OF EQUIPMENT
800 grams.
DIMENSIONS
Height 70mm
Depth 120mm (excluding connectors )
Width 180mm

Ordering Information:
For a quotation, further details or technical support and advice, contact us by phone on +44 (0)1483 480969, fax +44 (0)1483 797268 or email us, quoting part number BH74BB .