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Connecting an Outdoor Antenna
Instead of the supplied antenna, you can connect an outdoor
base-station or mobile antenna (not supplied) to your scanner
using a BNC connector. Your local RadioShack store sells a va-
riety of antennas. Choose the one that best meets your needs.
When deciding on a mobile or base-station antenna and its loca-
tion, consider these points:
• The antenna should be as high as possible on the vehicle or
building.
• 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.
If you choose another antenna, remove the supplied antenna
and follow the mounting instructions supplied with the new an-
tenna. Route the antenna’s cable to the scanner, then connect
the cable to the scanner’s antenna jack.
Cautions:
• 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.
20-314.fm Page 12 Monday, December 13, 1999 12:55 PM