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Video Line Corrector (BH74UU)

bh74uu

The BH74UU unit will compensate for signal losses in coaxial cables enabling high quality pictures to 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.

Gain, Low frequency lift, Medium frequency lift and High frequency lift are all independently adjustable.

The unit is fitted with an Opto- coupler circuit to provide an optical path for the video signal. This isolation of the input and output signals prevents the appearance of Hum Bars on the monitor in situations where circulating earthcurrents are causing problems.

Surge protection is fitted as standard to all units.

TECHNICAL	DESCRIPTION
INPUT SIGNAL REQUIREMENTS	Composite video using colour / monochrome video signals or other wide band signals within a frequency bandwidth of 30Hz to 5MHz.
INPUT SIGNAL AMPLITUDE	Nominal 1.0V Pk-Pk
OUTPUT SIGNAL AMPLITUDE	Nominal 1.0V Pk-Pk
OVER ONE Km OF RG59 CABLE	Differential Phase <3º. Differential Gain <3%
INPUT IMPEDANCE	75 Ohms
OUTPUT IMPEDANCE	75 Ohms
INPUT-OUTPUT CONNECTIONS	Automatic rejection to a maximum of 90 volts.
ELIMINATION OF LONGITUDINAL HUM	Adjustable between -2dB and +6dB @ 4.4MHz
CORRECTOR RESPONSE IN BAND	Adjustable to compensate for frequency dependent cable losses to a maximum of 45dB at 5MHz.
LIFT CONTROLS	8 lift controls are fitted: GAIN, LF, MF, HF1, HF2, HF3 and HF4.These controls allow individual adjustments within the video passband.
SWITCH FUNCTION	Switched in when using RG59 coaxial cable.
AC INPUT CONNECTOR	IEC type, 3 pin socket.
POWER REQUIREMENTS	Nominal 230V 50Hz or 110V 60Hz.
POWER CONSUMPTION	Approximately 6.0 watts at 230V 50Hz
OPERATING TEMP	-10ºC to +40ºC
WEIGHT OF EQUIPMENT	800g
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 , quoting part number BH74UU.