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2001 RadioShack Corporation.
All Rights Reserved.
RadioShack and RadioShack.com are trademarks used by RadioShack Corporation.
OWNER’S MANUAL — Please read before using this equipment.
1 in 4 out Bi-Directional Cable / TV Amplifier
The RadioShack Bi-Directional Cable Amplifier is ideal for long cable
runs or where additional signal level is needed to deliver clean video
signal from a single source to four receivers. The amplifier increases
the output signal up to 7dB to ensure that the receivers have a strong
signal. This amplifier also has an unamplified reverse path to allow sig-
nal to be sent from a video output for bi-directional communication, ca-
ble modems, pay-per-view, and interactive TV. The amplifier’s gain
control lets you adjust the amplification to help minimize interference
an maximize picture quality.
Cautions:
You must use a Class 2 power source that supplies 9V
DC and delivers at least 100 mA. Its center tip must be
set to positive and its plug must fit the amplifier's
adapter
jack. The supplied adapter meets these specifications.
Using an adapter that does not meet these specifications could
damage the amplifier or the adapter.
Always connect the AC adapter to the amplifier before you connect it
to AC power. When you finish, disconnect the adapter from AC power
before you disconnect it from the amplifier.
SAFETY INSTRUCTIONS
• Read all the safety and operating instructions before operating the
amplifier.
• Retain these safety and operating instructions for future refer-
ence.
• Heed all warnings on the amplifier and in the operating instruc-
tions.
• Carefully follow all operating instructions.
• This appliance should not be used near water, such as near a
bathtub, washbowl, kitchen sink or laundry tub.
• This amplifier should be situated so that its location or position
does not interfere with its proper ventilation.
• This amplifier should be connected only to a power supply of the
type described in the operating instructions or as marked on the
amplifier.
• Do not attempt to defeat the grounding or polarization compo-
nents of this amplifier.
• Power supply cords should be routed so that they are not walked
on or pinched. Pay particular attention to cords at plugs, power
receptacles, and the point where they exit from the amplifier.
• Wipe the amplifier with a damp cloth occasionally to keep it look-
ing new. Do not use harsh chemicals, cleaning solvents, or strong
detergents to clean the amplifier.
• The power cord of the amplifier should be unplugged from the out-
let when left unused for extended periods of time.
• Do not allow liquids to spill through the amplifier’s openings.
• The amplifier should be situated away from heat sources such as
radiators, heat registers, stoves or other appliances that cause
heat. Temperature extremes can shorten the life of electronic
devices and distort or melt plastic parts.
• If an outside antenna is connected to the receiver, be sure the
antenna system is grounded so as to provide some protection
against voltage surges, built-up static charges and lightning
strikes. Section 810 of the National Electric Code (NEC), ANSI/
NFPA NO. 70-1990, provides information with respect to proper
grounding of the mast and supporting structure, grounding of the
lead-in wire to an antenna discharge unit, size of grounding con-
ductors, location of antenna-discharge unit, connection to ground-
ing electrodes, and requirements for the grounding electrode.
• The CATV system installers attention should be directed to Article
820-40 of the NEC that provides guidelines for proper grounding
and, in particular, specifies that the cable ground shall be con-
nected to the grounding system of the building, as close to the
point of cable entry as practical.
SELECTING A LOCATION
Select a location for your amplifier that is close to your input source
and an AC outlet. You can mount the amplifier on a wall or other sur-
face using #6 screws suitable for mounting in your location.
Warning: Do not place the amplifier outdoors.
To keep the amount of exposed cable to a minimum, you can place
the amplifier in your attic. To prevent interference, do not place the
amplifier within 6 inches of any other electronic device.
ROUTING CABLES
Route 75-ohm (RG-6 or RG-6Q) coaxial cable from the amplifier to
your input source and to each receiver.
Follow these hints when routing cable:
• Use only as much cable as is necessary to reach from the ampli-
fier to the input source and receivers.
WARNING:
To reduce the risk of fire or shock hazard, do not expose
this product to rain or moisture.
CAUTION
RISK OF ELECTRIC SHOCK. DO NOT OPEN.
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO
NOT REMOVE COVER OR BACK. NO USER-SERVICEABLE PARTS
INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
This symbol is intended to alert you to the presence
of uninsulated dangerous voltage within the product’s
enclosure that might be of sufficient magnitude to
constitute a risk of electric shock. Do not open the
product’s case.
This symbol is intended to inform you that important
operating and maintenance instructions are included
in the literature accompanying this product.
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