Sharp lc-42ht3u Guia Do Utilizador

300-ohm twin-lead cable

75-ohm coaxial cable (round)

75-ohm coaxial cable

IN

OUT

300-ohm

twin-lead cable

VHF
ANTENNA

UHF
ANTENNA

Combiner
(commercially 
available)

or

300/75-ohm adapter

(commercially available)

300-ohm twin-lead cable (flat)

75-ohm coaxial cable (round)

or

Cable TV lead-In

Coaxial cable 
(commercially available)

Coaxial cable 
(commercially available)

Home Antenna
terminal (75-ohm)

Home Antenna
terminal (75-ohm)

1 Cable without a 

3 Combination VHF/

4 Separate VHF/UHF 

To TV antenna 
terminal

2 VHF/UHF antenna

•  Connect the antenna cable 

1, 2, 3 or 4).

To enjoy a clearer picture, use an outdoor antenna. The following is a brief explanation of the types of connections 
that are used for a coaxial cable. If your outdoor antenna uses a 75-ohm coaxial cable with an F-type connector, 
plug it into the antenna terminal at the rear of the TV set.

1. A 75-ohm system is generally a round cable with F-type 

connector that can easily be attached to a terminal 
without tools (Commercially available).

F-type connector

300-ohm twin-lead cable (fl at)

F-type connector

75-ohm coaxial cable (round)

75-ohm coaxial cable

2. A 300-ohm system is a fl at “twin-lead” cable that can be 

attached to a 75-ohm terminal through a 300/75-ohm 
adapter (Commercially available).

When connecting the RF cable to the TV set, do not 
tighten F-type connector with tools. 
If tools are used, it may cause damage to your TV 
set. (The breaking of internal circuit, etc.)