20-424 Owner’s Manual
Page 7
• Once you set the volume, do not increase it. Over time, your ears adapt to the volume level, so a
volume level that does not cause discomfort might still damage your hearing.
Traffic Safety
Do not wear an earphone or headphones while you drive a vehicle or ride a bicycle. This can
create a traffic hazard and can be illegal in some areas. Even though some earphones and
headphones let you hear some outside sounds when you listen at normal levels, they still can
present a traffic hazard.
CONNECTING AN EXTENSION SPEAKER
In a noisy area, an extension speaker (not supplied), available at your local RadioShack store,
might provide more comfortable listening. Plug the speaker cable’s 1/8-inch (3.5 mm) mini-plug
into your scanner’s (headphone symbol)/PC jack.
Note:
You must use an amplified speaker with this scanner. Non-amplified speakers do not
provide sufficient volume for comfortable listening.
ABOUT YOUR SCANNER
Once you understand a few simple terms used in this manual and familiarize yourself with your
scanner’s features, you can put the scanner to work for you. You simply determine the type of
communications you want to receive, then set the scanner to scan them.
A
frequency
is the receiving signal location (expressed in kHz or MHz). To find active frequencies,
you can use the
search
function.
You can also search the
One Touch Search Bands
, which are preset groups of frequencies
categorized by type of service.
When you find a frequency, you can store it into a programmable memory location called a
channe
l,
which is grouped with other channels in a
channel-storage bank
. You can then
scan
the channel-
storage banks to see if there is activity on the frequencies stored there. Each time the scanner finds
an active frequency, it stays on that channel until the transmission ends.
A LOOK AT THE KEYPAD
Here is a brief overview of your scanner’s keys and their functions.
