Realistic PRO-50 - Connecting an Optional Antenna; Connecting an Earphone

Connecting an Optional Antenna
The antenna jack on your scanner makes it easy to use your
scanner with a variety of antennas. You can remove the sup¬
plied antenna and attach a different one, such as an exter¬
nal mobile antenna, telescoping antenna, or outdoor base
antenna.
Use coaxial cable to connect an outdoor antenna. Always
use 52-ohm coaxial cable, such as RG-58 or RG-8. For
lengths over 15 m (50 feet), use RG-8 low-loss coaxial ca¬
ble. Radio Shack/Tandy stores sell the antenna connector
adapters that let you use these antennas.
Warning: When installing or removing an outdoor an¬
tenna, use extreme caution. If the antenna starts to fall,
let it go! It could contact overhead power lines. If the an¬
tenna touches the power line, contact with 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 AN EARPHONE
For private listening, plug an earphone into the earphone
jack (^) on the top of your scanner. This automatically dis¬
connects the speaker. We recommand one of our earphone
or mono headphones.
Earphone