Radio-shack 20-404 User Manual download pdf (Page 10)

Setup

Connecting the Antenna

To attach the supplied ﬂexible

antenna:

1. Align the slots around the

antenna’s connector with the tabs

on the antenna jack.

2. Press the antenna down over the

jack.

3. Turn the antenna’s base clockwise

until it locks into place.

Connecting an Outdoor Antenna

To connect an external antenna,

follow the installation instructions

supplied with the antenna. Use 50-

ohm coaxial cable to connect your

scanner to the outdoor antenna.

For lengths between 50 and 100

feet, use RG-8X low-loss dielectric

coaxial cable. For lengths over 100

feet, use RG8. You also may need a

BNC adapter (available at your local

RadioShack store).

w Warning: Use extreme caution

when installing or removing an outdoor antenna. If the

antenna starts to fall, let it go! It could contact overhead

power lines. If the antenna touches a power line,

touching the antenna, mast, cable, or guy wires can cause

electrocution and death. Call the power company to

remove the antenna. DO NOT attempt to do so yourself.

Connecting Headphones

For private listening, you can plug an Çinch (3.5-mm)

mini-plug earphone or headphones (not supplied), into

the HEADPHONE jack

on the top of

the scanner. This

automatically

disconnects the internal

speaker.

Listening Safely

Do not wear headphones, earphones, or earbuds while

operating a motor vehicle or riding a bicycle. This can

create a trafﬁc hazard and could be illegal in some

areas.

To protect your hearing, follow these guidelines:

• Do not listen at high volume levels. Extended high-

volume listening can lead to permanent hearing

loss.

• Set the volume to the lowest setting. Then turn

on your audio device and adjust the volume to a

comfortable level.

• Avoid increasing the volume. Your ears will adapt

to the volume level, so a level that does not cause

discomfort could still damage your hearing.

Connecting an Extension Speaker

In a noisy area, an ampliﬁed extension speaker

(available from your local RadioShack store or

www.RadioShack.com), might provide more comfortable

listening. Plug the speaker cable’s Ç inch (3.5 mm)

miniplug into your scanner’s HEADPHONE jack.

n Note: Use an ampliﬁed speaker with this scanner.

Non-ampliﬁed speakers do not provide sufﬁcient

volume for comfortable listening.

Attaching/Removing the Belt Clip

You can attach the belt clip to the back

of the scanner for hands-free carrying.

Slide the supplied belt clip down on the

back of the scanner. To remove the belt

clip, pull the tab out and slide the clip

upward.

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Radio-shack 20-404 User Manual Page 10

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