Velleman VAS4A Mode D'emploi

1. Introduction
To all residents of the European Union
Important environmental information about this product
This symbol on the device or the package indicates that disposal of the device after its lifecycle could harm
the environment.
Do not dispose of the unit (or batteries) as unsorted municipal waste; it should be taken to a specialised
company for recycling.
This device should be returned to your distributor or to a local recycling service.
Respect the local environmental rules.
If in doubt, contact your local waste disposal authorities.
Thank you for buying the VAS4A! This is an amplifier used for long-range video transmission (up to 1000m) over an
RG-59 coaxial cable. Please read the manual thoroughly before bringing this device into service. If the device was
damaged in transit, don't install or use it and contact your dealer.
2. Features
• wide bandwidth, video gain compensation amplification
• HF compensation adjustments:
o 10dB adjustable image gain
o sharpness and brightness adjustment
• transmission range: up to 1000m (RG-59 coaxial cable)
• with power ON/OFF LED
• can be connected to video camera, multiplexer, VCR, DVD...
3. Connection
1. Camera
2. Monitor
3. Power adapter
4. Troubleshooting
No video signal: Check the power source.
Unusual video signal: Check the cable polarity.
5. Technical Specifications
Input Channels
Output Channels
Input Level
Output Level
Bandwidth
Power Supply
Power Consumption
Dimensions
Weight
The information in this manual is subject to change without prior notice.
VAS4A
VAS4A – VIDEO AMPLIFIER (4 IN / 4 OUT)
4 x BNC
4 x BNC
0.8 – 1.2Vpp @ 75
1Vpp @ 75
10Hz – 10MHz
12VDC adapter (incl.)
220mA
138 x 84 x 28mm
240g
- 1 - VELLEMAN