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17
The Basics
step 3: connect your scanner
connect the supplied antenna
Push the antenna onto
your scanner’s antenna
connector and rotate
until it locks into place.
Your scanner’s
sensitivity to various
frequencies depends
on its location and the antenna’s length. For best
reception, adjust the antenna’s length as follows:
Frequency
Antenna Length
25-54 MHz
Extend fully
108-174 MHz
Extend 4 segments
216-225 MHz
Extend 3 segments
225-406 MHz
Extend 2 segments
406-1300 MHz
Collapse fully
connect an external antenna
You will need to connect an external antenna when you
mount your scanner in
the dashboard of your
vehicle. You may also
want to connect an
external antenna if you
use your scanner as a
base station.