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Video Distribution Amplifiers, VDA.
Stereo Audio, Color and black & white.
Video Only, Easy to use, plug and play.
Stereo Audio and Video, 1, 2, 4, 7, 8 Outputs.
Learn about Distribution Amplifiers & Equalizing Amplifiers.
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Stereo Audio and Video Distribution Amplifiers
1 Input and 4 Outputs, Composite Stereo Audio/Video Distribution Amplifier
1 Input & 4 Outputs, RCA connectors
1 Input and 4 Outputs, S-Video and composite video and audio distribution amplifier.
1 Input and 4 Outputs, S-Video connectors
1 Input and 7 Outputs, Composite Stereo Audio/Video Distribution Amplifier
1 Input & 7 Outputs, RCA connectors
1 input 8 outputs Video Distribution Amplifier Auto Detect Video Output with indicator
1 input and 8 outputs RCA connectors
Composite Stereo Audio/Video Distribution Amplifier
1 Input & 12 Outputs, RCA connectors

Video Only Distribution Amplifiers
1 input 2 output Video Only Distribution Amplifier
1 input and 2 output BNC connectors
& RCA connectors
.
1 Input and 1 Output Audio and Video Distribution Amplifier
1 Input and 1 Output,
BNC & RCA connectors
1 Input and 4 Outputs, Video Only Distribution Amplifier
1 Input and 4 Outputs BNC connectors
Video only


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Stereo Audio and Video, 1 input 8 outputs with RCA connectors.
1 input 8 outputs Video Distribution Amplifier Auto Detect Video Output with indicator
TV08Dc
1 input 8 outputs Video Distribution Amplifier.
120 VAC to 15 DC power supply included.
Auto Detect Video Output with indicator.
RCA Jacks.
Dimensions: 5.7 inch x 9.5 inch x 1.8 inch.
Power 15V DC 500 mA.
Suitable for NTSC and PAL systems.
Weight 1.3 pounds.
Diagram for 1 input 8 outputs Video Distribution Amplifier
power supply
TV08Dc 1 input 8 outputs Video Distribution Amplifier 110.00

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Stereo Audio and Video, 1 Input and 7 Outputs with RCA connectors.
1 Input and 7 Outputs, Composite Stereo Audio/Video Distribution Amplifier
Power supply
AV-700a
1 Input and 7 Outputs
Composite Stereo Audio and Video Distribution Amplifier
.
Send one Video signal to seven locations.
No video signal degradation. No audio signal loss. Unity gain.
Distribute stereo audio and analog video signals to multiple televisions, monitors, receivers etc.
Far superior to simply using Y-cables. Use these amplifiers with video sources like DVD players, satellite receivers and other video sources. Also useful for distributing audio sources like CD players and tuners for multi-zone sound systems. Perfect for nightclubs, banks, airports, boardrooms, and schools.
Amplifier can be daisy chained to connect to many monitors.
Unity gain technology ensures the output signal is identical to the input signal.
Power requirements 15 VDC at 400 mA power supply included.
Video Inputs: RCA composite video female.
Audio Inputs:Dual channel RCA stereo audio female.
Outputs: Seven RCA composite video female Seven dual channel RCA stereo audio female.
Package Contents, Distribution amplifier, Power supply, User manual.
Warranty: 90 Days. Weight: 4 pounds. Made in the USA.
VIDEO SPECIFICATIONS:
Gain: 1 Volt Terminated: 75 ohms.
Input Impedance: 75 ohms.
Output Impedance: 75 ohms.
Video Insertion Loss: 50 Hz to 10 MHz < 0.4 dB.
In to Out Isolation: 50 Hz to 10 MHz 32 dB.
Out to In Isolation: 50 Hz to 10 MHz 60 dB.
Return Loss: 50 Hz to 10 MHz 20 dB.
Video Bandwidth: > 10 MHz.
AUDIO SPECIFICATIONS:
Gain: Unity.
Input Impedance: 22k ohm.
Output Impedance: 1k ohm.
THD: 0.05% at 1.0 Volts input level.
Frequency Response: 20 Hz to 100 KHz.
Channel Separation: > 75 dB at 1 KHz.
Out to Out Isolation: 60 dB.
Signal to Noise: 100 dB at 2 Volts (out).
AV-700a 1 Input and 7 Outputs, Composite Stereo Audio & Video Distribution Amplifier 90.00

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Stereo Audio and Video,1 Input and 4 Outputs with RCA connectors.
1 Input and 4 Outputs, Composite Stereo Audio/Video Distribution Amplifier
Power supply
AV-400a
1 Input and 4 Outputs, Composite Stereo Audio and Video Distribution Amplifier.
High quality amplifier allows for multiple signal distribution with no signal loss.
4 composite video outputs, complete with 4 stereo outputs.
No video signal degradation. No audio signal loss. Unity gain.
Distribute stereo audio and analog video signals to multiple televisions, monitors, receivers etc.
Far superior to simply using Y-cables. Use these amplifiers with video sources like DVD players, satellite receivers and other video sources. Also useful for distributing audio sources like CD players and tuners for multi-zone sound systems. Perfect for nightclubs, banks, airports, boardrooms, and schools.
Amplifier can be daisy chained to connect to many monitors.
Unity gain technology ensures the output signal is identical to the input signal.
Heavy duty metal housing provides excellent shielding.
Power requirements 15 VDC at 400 mA power supply included.
Video Inputs: RCA composite video female.
Audio Inputs:Dual channel RCA stereo audio female
Outputs: Four each RCA composite video female.
Package Contents, Distribution amplifier, Power supply, User manual.
Warranty: 90 Days. Weight: 3 pounds. Made in the USA.
VIDEO SPECIFICATIONS:
Gain: 1 Volt Terminated: 75 ohms.
Input Impedance: 75 ohms.
Output Impedance: 75 ohms.
Video Insertion Loss: 50 Hz to 10 MHz < 0.4 dB.
In to Out Isolation: 50 Hz to 10 MHz 32 dB.
Out to In Isolation: 50 Hz to 10 MHz 60 dB.
Return Loss: 50 Hz to 10 MHz 20 dB.
Video Bandwidth: > 10 MHz.
AUDIO SPECIFICATIONS:
Gain: Unity.
Input Impedance: 22k ohm.
Output Impedance: 1k ohm.
THD: 0.05% at 1.0 Volts input level.
Frequency Response: 20 Hz to 100 KHz.
Channel Separation: > 75 dB at 1 KHz.
Out to Out Isolation: 60 dB.
Signal to Noise: 100 dB at 2 Volts (out).
AV-400a 1 Input and 4 Outputs, Stereo Audio & Video Distribution Amplifier 80.00
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Mono Audio and Video 1 Input and 1 Output with BNC and RCA connectors.
1 Input and 1 Output Audio and Video Distribution Amplifier
Diagram of a 1 Input and 1 Output Audio and Video Distribution Amplifier
VA01Ac
1 Input and 1 Output, mono Audio and Video Distribution Amplifier.
BNC Connectors for Video.
RCA Connectors for Audio.
Independent video and audio Gain Adjustments.
Video Input Level: 0.8 to 1.2V peak-to-peak, 75 Ohms.
Video Output Level:1V peak-to-peak, 75 Ohms.
Video Bandwidth: 5 MHz.
Transmission range: up to 1000 feet.
Power Consumption: DC 12V at 100 mA.
Includes 120 VAC power supply.
Dimensions: 2.4 x 4.8 x 0.9 inches.
Power supply
VA01Ac 1 Input and 1 Output Audio and Video Distribution Amplifier 75.00




Video Only Distribution Amplifiers
Convert one video signal into 2 or more identical signals. Example: You can put 1 Camera on 3 Monitors.
Video Amplifier Diagram
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Video only (no audio) 1 input 2 output with BNC or RCA connectors, box or cable type.
BNC to RCA adapter

Box type.
1 input 2 output Video Only Distribution Amplifier

BNC to RCA adapter
BNC to RCA adapter
12 VDC Power supply
Cable type.
Video only 1 input 2 output with BNC or RCA connectors.
BNC to RCA adapter
BNC to RCA adapter
12 VDC Power supply
BNC-F-RCA-M

Included: Power supply and 3 BNC to RCA adapters that will give you a choice of of BNC or RCA connections.
Dimensions: 1.9 x 1.7 x 2 inches.


Included: Power supply and 3 BNC to RCA adapters that will give you a choice of of BNC or RCA connections.
Dimensions: 1.6 x 1.1 x 0.8 inches.

1 input 2 output Video Only Distribution Amplifier.
Diagram of a 1 input 2 output Video Distributor Audio and Video with Gain Control per Channel
VD12c
Video input levels 0.8 to 1.2V peak-to-peak 75 Ohm.
Video output level 1 V peak-to-peak.
Transmission range up to 1000 feet.
Power: 12 VDC 100 mA.
120 VAC to 12 DC power supply included.
VD12c 1 input 2 output Video Only Distribution Amplifier 75.00
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Video only, 1 Input and 4 Outputs with BNC connectors.
1 Input and 4 Outputs, Video Only Distribution Amplifierl
Diagram of a Video Distributor 1 Input and 4 Outputs Audio and Video with Gain Control per Channel
VD14c
1 Input and 4 Outputs, Video Only Distribution Amplifier
120 V AC to 12 DC power supply included.
BNC connectors.
Power 12 VDC at 320 mA.
Dimensions: 2.4 x 5 x 0.9 inches.
Suitable for NTSC and PAL systems.
Power supply
VD14c 1 Input and 4 Outputs, Video Only Distribution Amplifier 75.00
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Video Only, 4 Inputs and 4 Outputs, 8 level controls with 8 BNC connectors.
Video Only 4 Input and 4 Output, 4 level controls with BNC connectors.
Power supply
VA04c
4 Input and 4 Output Video Distribution Amplifier.
120 VAC to 12 DC power supply included.
Features include:
4 Input and 4 Outputs.
Suitable for NTSC and PAL systems.
BNC connectors.
Four individual sharpness adjustments.
Four individual brightness adjustments.
Transmission: range up to 330 feet.
Power requirement:12V DC at 220 mA.
Dimension : 2.4 x 5 x 0.9 inches.
VA04c 4 Input and 4 Output Video Distribution Amplifier 75.00
Diagram for 4 Input and 4 Output Video Distribution Amplifier

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Distribution Amplifier (VDA)
Installations that require the viewing of one video source from multiple locations in a building must use a device that duplicates the original signal, a video distribution amplifier (VDA).
This device reproduces the original video signal into multiple copies, one for each monitor in your system.
Most people will not notice signal degradation (a loss of picture details) in up to 400 foot runs of coax cable.
Video signals in your home system and in security or CCTV equipment have common traits;
The signal that travels through the cable is one (1) volt peak-to-peak.
It can be viewed on any monitor or TV with a video input.
It has a characteristic impedance of 75 ohms.
It can be degraded by ground loops and long cable runs.

Equalizing Amplifier
A camera to monitor distance of over 750 feet through RG59 coax will display a weak and degraded picture on the monitor. This effect gets worse as the cable gets longer. A simple fix passes the weak signal through an equalizing amplifier and after making the required adjustments, you will have a strong signal that will produce a good picture.
A post-equalizing amplifier is a device that is installed close to the monitor (as opposed to close to the camera). AC power is usually more readily available at the monitoring location and only one person is required to view the monitor and at the same time make the required adjustments to the equalizing amplifier, for the best picture.
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Since 1971, UHF Associates & 21best.com has been committed to providing quality products and services to professionals and consumers, contractors, dealers, retailers, systems Integrators, Business-To-Business (B to B), distributors and original equipment manufacturers (OEMs).
Our goal is to deliver the best possible combination of products, service and pricing. We are committed to continually offering our customers a variety of quality products at low prices. We pride ourselves on offering honesty, value, fast service and customer satisfaction, along with technical information and friendly customer service. We offer a
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