Overview
The TX-VLA1 is the ideal choice in installations where video signals are being fed into long cables, or where a low video signal needs to be amplified. The unique power supply input allows the TX-VLA1 to be powered from a wide variety of existing ac or dc power sources.
Security or surveillance cameras are frequently located significant distances from monitoring or recording equipment. Cable losses produce a decrease in the overall video level. High frequency attenuation in the cable produces additional loss of higher frequency components of the video signals. These combined losses result in degradation of color signals, and decreased resolution in monochrome images. The TX-VLA1 can be located right at the camera and adjusted to compensate for both losses. GAIN and EQ may be adjusted on the TX-VLA1 to drive video cables as long as 2000 feet (600 meters).
The TX-VLA1 is supplied with a chart showing recommended beginning settings of GAIN and EQ for various lengths of cable. The settings may then be further fine tuned for an optimum, high-quality video transmission.
Features:
- Boost Video Levels
- Adjustable Video Level
- Adjustable Equalization
- Drive Long Video Lines
- Video Amplifier Powered from Available Voltage Sources
- High-Quality Video in Small Size
- NTSC or PAL
Specifications
- Input: 75 Ω, BNC, Ground-referenced
- Input Level: 1 V p-p video
- Gain: Unity to +5 dB (adjustable)
- Bandwidth: 10 MHz
- Equalization Adjustment: Flat to +4 dB @ 3.58 MHz (adjustable), Flat to +7 dB @ 5 MHz (adjustable)
- Equalization Curve: Optimized at each setting for flattest response of video signal components without square-wave overshoot
- Residual Noise: < -65 dB (referenced to 1 V p-p)
- Output: 75 Ω source terminated, BNC, Ground referenced
- Ambient Operating Environment: -10° C to 50° C
- Power Requirement: GROUND-REFERENCED 12 to 33 Vdc or 12 to 24 Vac, @ 30 mA
- Package Type: Cardboard Box
RDL Three-Year Limited Warranty
Installation of these products by the Purchaser shall constitute Purchaser’s acknowledgement and acceptance of the terms and
conditions for sale and of this warranty, and shall constitute the Purchaser’s determination of the suitability of this product for the
Purchaser’s intended application. Radio Design Labs, Inc., also referred to as RDL®, warrants to the Purchaser that products
manufactured by RDL are free from defects in material and workmanship. This warranty applies to the period of three years from the date
of shipment, except for component parts or products purchased from other sources and supplied by RDL. Such component parts or
products bear only the warranty of the manufacturer thereof in effect at the time of shipment to the Purchaser. RDL will, without charge,
and after written notice has been received and acknowledged by RDL, repair an RDL product if proved to be defective according to the
usage of the trade, when such equipment is received by RDL at the location it designates with shipment costs prepaid by the Purchaser.
RDL shall not be liable for any expense whether for repairs, replacements, material, service, or otherwise, incurred by the Purchaser or
modifications made by the Purchaser to the product. No equipment shall be deemed defective if it shall fail to operate in a normal or
proper manner due to exposure to excessive moisture in the atmosphere, excessive temperature extremes, improper environmental
cleanliness, or any other environment not consistent with the principles of good engineering practice. In no event shall RDL have any
liability for consequential damage or expense directly or indirectly arising from the use of the products, or any inability to use it either
separately or in combination with other equipment or materials, or from any other cause, whether used in accordance with instructions or
not. This warranty is void if equipment is altered in any way by other than RDL. RDL products are NOT intended for use in life support
appliances, devices, or systems. Use of RDL products in such applications is done solely at the liability of the reseller/installer and/or end
user. RDL reserves the right to change design parameters and specifications at any time without notice. The performance measurements
reflect the products at the time of printing. This warranty is in lieu of all others, either expressed or implied. No representative is authorized
to assume for RDL any other liability in connection with RDL products.
