Radio Shack 20-501 ユーザーズマニュアル

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13 The 
Basics
setting up your scanner
connecting the antenna
To attach the supplied flexible antenna to the 
connector on the top of your scanner, align the slots 
around the antenna's connector with the tabs on the 
scanner's BNC connector. Then slide the antenna's 
connector down over the scanner's connector and 
rotate the antenna connector's outer ring clockwise 
until it locks into place.
connecting an optional antenna
The scanner's BNC connector makes it easy to 
connect a variety of optional antennas, including an 
external mobile antenna or outdoor base station 
antenna. Your local RadioShack store sells a wide 
selection of antennas.