EQ Distribution Amplifiers - Basic Block EQ DA

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Gain Á¶Àý °¡´É, DC - 25MHz
ÀÔ·Â : Composite
Ãâ·Â : Composite
Àü¿ø : 10-24V AC or DC (Æ÷ÇÔ)  

Equalizing Composite Video Distribution Amplifiers & Line Amplifier
Equalizing or "EQ" composite video amplifiers incorporate both variable gain and variable EQ to
compensate for signal losses over long coaxial cable runs.
Why Use an Equalizing Amplifier?
Coax cable is ideal for baseband video signal transmission - over relatively short distances. Once
the cable length exceeds 100 to 200 feet, cable losses can noticeably degrade picture quality.
Attenuation over coax cable increases with the frequency, so the loss is not uniform across the
video signal bandwidth. The high frequency loss or "roll-off" in a long cable run decreases video
resolution. Sharp lines become blurry, and contrast is lost. Ghosts may appear along straight lines,
or where there is significant contrast on the original signal. Text is particularly degraded, as both
contrast and resolution are critical to presenting crisp, readable text on a video display.
Because different cable types have different loss characteristics, VAC offers both the Basic Block¢â
Line Drivers and ProSeries¢â EQ DAs in versions optimized for RG-59, RG-6 or 8281 type cable.
The Basic Block EQ Line Amplifier is an ideal solution when only a single output is required.
The ProSeries EQ DA incorporates a 1X4 DA, and a differential input to mitigate ground loop
interference.

Basic Block¢â
Bandwidth DC - 25 MHz
Input Impedance Standard: 75 Ohms
Input Signal Level 0-2Vpp; (0V DC offset)
Input Coupling DC
Output Impedance 75 Ohms
Gain 0.75X to 1.75X
Power* 10-24V AC or DC
Dimensions 2.2" x 2.2" x 0.65"
(not including connectors)
See figure A, page 69
Mounting Two 6-32 threaded
brass inserts
Shipping weight 2 lbs
                   

 
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