Radio Shack PRO-99 Scanner User Manual


 
12
The antenna and its cable
should be as far as possible
from sources of electrical
noise, such as appliances or
other radios.
The antenna should be
vertical for the best
performance.
Always use 50 Ohm coaxial cable,
such as RG-58 or RG-8, to
connect the base-station or mobile
antenna. For lengths over 50 feet,
use RG-8 low-loss dielectric
coaxial cable. If the antenna
cable’s connector does not fit in
the scanner’s antenna jack, you
might also need a PL-259-to-BNC
antenna plug adapter. Your local
RadioShack store carries a wide
variety of coaxial antenna cable
and connectors.
Once you choose an antenna,
follow the mounting instructions
supplied with the antenna, after
removing a supplied antenna.
Then route the antenna’s cable to
the scanner and connect the cable
to the scanner’s antenna jack.
CONNECTING AN
EARPHONE/HEADPHONES
For private listening, you can
connect an earphone or
headphones with a
1
/8-inch (3.5
mm) plug to the * jack on the top
of the scanner. (Your local
RadioShack store carries a wide
selection of earphones and
headphones). Connecting an
earphone or headphones
automatically disconnects the
internal speaker.
CAUTION
Do not run the cable
over sharp edges or
moving parts that
might damage it.
Do not run the cable
next to power cables
or other antenna
cables.
20-515Change01_04.fm Page 12 Friday, January 16, 2004 1:14 PM