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Step 5: Route the Cable to Your Audio/Video System
• Use plastic tape or mast standoff insulators to secure the coaxial cable to the mast at about 3-foot (.9 m) intervals. Continue
down the roof and the side of the house using roof and wall standoff insulators.
• Use a 75-ohm grounding block at the point where the coaxial cable enters the house. Read the Consumer Product Safety
Commission Sheet for grounding instructions.
• Use a wall-through lead-in tube (not supplied) to neatly route the coaxial cable through walls. Loosely bend the cable to
form a drip loop before the cable enters the house.
Step 6: Connect to your Audio/Video System
Connect the antenna's coaxial cable to your audio/video system's antenna terminals according to the type of connections you
have. RadioShack carries a variety of splitters and other accessories; choose one that best suits your needs. Below are some
sample connections.
If you have:
If you have:
• Twin-lead UHF terminals
• Twin-lead UHF terminals
• Coaxial VHF terminal
• Twin-lead VHF terminals
• Twin-lead FM antenna terminals
• Twin-lead FM antenna terminals
Use a RadioShack Splitter
with 75-Ohm Input
UHF 300 Ohm
VHF 75 Ohm
UHF 300 Ohm
To FM Receiver
From Antenna
From Antenna
If you want to:
• Use the antenna in combination with a cable or satellite
set-top-box, and
• Your TV has a coaxial (antenna in) terminal.
Use a RadioShack High Isolation A/B Switch.
From set-top-box
From Antenna
A IN
TV OUT
B IN
To TV
If you have:
• Combined coaxial VHF/UHF
terminal
• Coaxial FM antenna terminal
Use a RadioShack
Use a RadioShack VHF/UHF
Transformer/Splitter
Splitter/Combiner
VHF 300 Ohm
TV VHF/UHF
To FM Receiver
From Antenna
If you want to:
• Use the antenna in combination with a cable or satellite
set-top-box, and
• Your TV has both a coaxial (antenna in) terminal and A/V
terminals (usually red/yellow/white).
Use a RadioShack Gold A/V cable.
TV
Set-top-box
VIDEO IN
ANTENNA IN
TV OUT
VIDEO
CH3 CH4
A/V Cable
Adding the HDTV/UHF Antenna to a VHF Installation
There are many methods you could use to add an HDTV/
UHF antenna to an extising VHF installation. This section
describes one method, which is to mount your HDTV/UHF
antenna below the VHF and connect the two antennas with
twin-lead cable. Visit your local RadioShack store to find the
best method and mounting accessories for your installation.
Note: You could also place your HDTV/UHF antenna above
the VHF, but the coaxial cable must feed from the HDTV/
UHF antenna.
Complete Step 1 through Step 3 on page 1 before beginning.
1. Remove the VHF antenna from the mast.
2. Mount your HDTV/UHF antenna about 48 inches (1.2
meters) from the top of the mast. (See Step 4: Attach
Antenna to the Mast on page 1.)
3. Attach the VHF antenna to the mast.
4. Use about 5 feet (1.5 meters) of twin-lead cable to
connect your HDTV/UHF antenna to the VHF antenna.
Be sure the cable is long enough to reach from the lead-
in terminals of one antenna to the lead-in terminals of
the other.
5. Split both ends of the twin-lead cable for a length of
To FM Receiver
about 3 inches (7.6 centimeters). Then strip about ½
inch (1.2 centimeters) of insulation from all leads.
6. Remove the hardware from the VHF antenna's lead-in
terminals.
7. Wrap each lead around one of the antenna's lead-in
terminals (on both sides of the boom) and secure with
Optional Accessories
RadioShack carries these and many other antenna mounting accessories:
From Antenna
AUDIO IN
CABLE/ANT. IN
LEFT
RIGHT
Antenna Rotator
the hardware. Be sure there is enough slack between the
strain-relief tab and the antenna terminals to prevent stress
on the cable or the terminals.
VHF Antenna's
Lead-In Terminals
Twin-Lead Cable
to UHF Antenna
8. Wrap each lead on the other end of the twin-lead
cable around one of the HDTV/UHF antenna's lead-in
terminals (on both sides of the boom).
9. Secure the leads with the supplied flat washers and
large wing nuts.
Outdoor Coaxial Cable
Grounding Block
Tripod Mount
Flat Washers
Large Wing Nuts
Twin-Lead
from VHF Antenna
Matching Transformer
Antenna
Mast
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